Version: 2026.08
This area was updated. Please refer to the CPC Notices of Changes and Notices of Editorial Corrections for more information.
F15B 1/00 | Installations or systems with accumulators; Supply reservoir or sump assemblies [2013-01] |
F15B 1/02 | . | Installations or systems with accumulators [2019-01] |
F15B 1/021 | . . | {used for damping} [2013-01] |
F15B 1/022 | . . | {used as an emergency power source, e.g. in case of pump failure} [2013-01] |
F15B 1/024 | . . | {used as a supplementary power source, e.g. to store energy in idle periods to balance pump load} [2013-01] |
F15B 1/025 | . . | {used for thermal compensation, e.g. to collect expanded fluid and to return it to the system as the system fluid cools down} [2013-01] |
F15B 1/027 | . . | having accumulator charging devices [2019-01] |
F15B 1/0275 | . . . | {with two or more pilot valves, e.g. for independent setting of the cut-in and cut-out pressures} [2020-05] |
F15B 1/033 | . . . | with electrical control means [2013-01] |
F15B 1/04 | . . | Accumulators [2019-01] |
F15B 1/045 | . . . | {Dead weight accumulators} [2013-01] |
F15B 1/08 | . . . | using a gas cushion; Gas charging devices; Indicators or floats therefor [2013-01] |
F15B 1/083 | . . . . | {the accumulator having a fusible plug} [2013-01] |
F15B 1/086 | . . . . | {the gas cushion being entirely enclosed by the separating means, e.g. foam or gas-filled balls} [2013-01] |
F15B 1/10 | . . . . | with flexible separating means [2013-01] |
F15B 1/103 | . . . . . | {the separating means being bellows} [2013-01] |
F15B 1/106 | . . . . . | {characterised by the way housing components are assembled} [2013-01] |
F15B 1/12 | . . . . . |
F15B 1/125 | . . . . . . | {characterised by the attachment means (F15B 1/14 takes precedence)} [2013-01] |
F15B 1/14 | . . . . . . | by means of a rigid annular supporting member [2013-01] |
F15B 1/16 | . . . . . | in the form of a tube [2013-01] |
F15B 1/18 | . . . . . | Anti-extrusion means [2013-01] |
F15B 1/22 | . . . . | Liquid port constructions [2013-01] |
F15B 1/24 | . . . . | with rigid separating means, e.g. pistons [2013-01] |
F15B 1/26 | . | Supply reservoir or sump assemblies [2013-01] |
F15B 3/00 | Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids {(fluid-driven pumps F04B 9/08)} [2013-01] |
F15B 5/00 | Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities (F15B 9/00 takes precedence) [2019-01] |
F15B 5/003 | . | {characterised by variation of the pressure in a nozzle or the like, e.g. nozzle-flapper system} [2013-01] |
F15B 5/006 | . | {with electrical means, e.g. electropneumatic transducer (F15B 5/003 takes precedence)} [2013-01] |
Fluid-pressure actuator systems (systems peculiar to the control of a particular machine or apparatus covered in a single other class, see the class for such machine or apparatus) [2013-01] NOTE
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F15B 7/00 | Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors [2019-01] |
F15B 7/001 | . | {With multiple inputs, e.g. for dual control} [2019-01] |
F15B 7/003 | . | {with multiple outputs} [2013-01] |
F15B 7/005 | . | {With rotary or crank input} [2019-01] |
F15B 7/006 | . . | {Rotary pump input} [2013-01] |
F15B 7/008 | . | {with rotary output} [2013-01] |
F15B 7/02 | . | Systems with continuously-operating input and output apparatus [2013-01] |
F15B 7/04 | . | In which the ratio between pump stroke and motor stroke varies with the resistance against the motor [2019-01] |
F15B 7/06 | . |
F15B 9/00 | Servomotors with follow-up action, {e.g. obtained by feed-back control,} i.e. in which the position of the actuated member conforms with that of the controlling member [2019-01] |
F15B 9/02 | . | with servomotors of the reciprocatable or oscillatable type [2013-01] |
F15B 9/03 | . . |
F15B 9/04 | . . | controlled by varying the output of a pump with variable capacity [2013-01] |
F15B 9/06 | . . | controlled by means using a fluid jet [2013-01] |
F15B 9/07 | . . . | with electrical control means [2013-01] |
F15B 9/08 | . . | controlled by valves affecting the fluid feed or the fluid outlet of the servomotor (F15B 9/06 takes precedence) [2013-01] |
F15B 9/09 | . . . | with electrical control means [2013-01] |
F15B 9/10 | . . . | in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage [2013-01] |
F15B 9/14 | . | with rotary servomotors [2017-05] |
F15B 9/16 | . | Systems essentially having two or more interacting servomotors {, e.g. multi-stage (F15B 18/00, F15B 20/00 take precedence)} [2019-01] |
F15B 9/17 | . . | with electrical control means [2013-01] |
F15B 11/00 | Servomotor systems without provision for follow-up action {; Circuits therefor}(F15B 3/00 takes precedence) [2026-08] |
F15B 11/003 | . | {Systems with load-holding valves} [2019-01] |
F15B 11/006 | . | {Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link} [2013-01] |
F15B 11/02 | . | Systems essentially incorporating special features for controlling the speed or the actuating force of an output member [2026-08] |
F15B 11/022 | . . | {in which a rapid approach stroke is followed by a slower, high-force working stroke (F15B 11/0325 takes precedence)} [2013-01] |
F15B 11/024 | . . | by means of differential connection of the servomotor lines, e.g. regenerative circuits [2019-01] |
F15B 2011/0243 | . . . | {the regenerative circuit being activated or deactivated automatically} [2013-01] |
F15B 2011/0246 | . . . | {with variable regeneration flow} [2013-01] |
F15B 11/028 | . . |
F15B 11/032 | . . . | by means of fluid-pressure converters [2019-01] |
F15B 11/0325 | . . . . | {the fluid-pressure converter increasing the working force after an approach stroke} [2013-01] |
F15B 11/036 | . . . | by means of servomotors having a plurality of working chambers [2019-01] |
F15B 11/04 | . . |
F15B 11/0406 | . . . | {during starting or stopping (F15B 11/048 takes precedence)} [2013-01] |
F15B 11/0413 | . . . | {in one direction only, with no control in the reverse direction, e.g. check valve in parallel with a throttle valve} [2013-01] |
F15B 11/042 | . . . |
F15B 11/0423 | . . . . | {by controlling pump output or bypass, other than to maintain constant speed} [2019-01] |
F15B 11/0426 | . . . . | {by controlling the number of pumps or parallel valves switched on} [2013-01] |
F15B 11/044 | . . . |
F15B 11/0445 | . . . . | {with counterbalance valves, e.g. to prevent overrunning or for braking} [2013-01] |
F15B 11/046 | . . . | depending on the position of the working member [2013-01] |
F15B 11/05 | . . . | specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive {(F15B 11/161 takes precedence)} [2019-01] |
F15B 11/055 | . . . . | {by adjusting the pump output or bypass (F15B 11/165 takes precedence)} [2026-08] |
F15B 11/06 | . | involving features specific to the use of a compressible medium, e.g. air, steam [2013-01] |
F15B 11/064 | . . | with devices for saving the compressible medium [2013-01] |
F15B 11/068 | . . | with valves for gradually putting pneumatic systems under pressure [2013-01] |
F15B 11/072 | . . | Combined pneumatic-hydraulic systems [2026-08] |
F15B 11/08 | . | with only one servomotor [2013-01] |
F15B 11/10 | . . | in which the servomotor position is a function of the pressure {; Pressure regulators as operating means therefor} [2026-08] |
F15B 11/12 | . . | providing distinct intermediate positions; with step-by-step action [2019-01] |
F15B 11/121 | . . . | {providing distinct intermediate positions} [2026-08] |
F15B 11/122 | . . . . | {by means of actuators with multiple stops} [2013-01] |
F15B 11/123 | . . . . | {by means of actuators with fluid-operated stops} [2013-01] |
F15B 11/125 | . . . . | {by means of digital actuators, i.e. actuators in which the total stroke is the sum of individual strokes} [2013-01] |
F15B 11/126 | . . . . | {by means of actuators of the standard type with special circuit controlling means (F15B 11/125 takes precedence)} [2013-01] |
F15B 11/127 | . . . | {with step-by-step action} [2013-01] |
F15B 11/128 | . . . . | {by means of actuators of the standard type with special circuit controlling means} [2013-01] |
F15B 11/13 | . . . | using {separate dosing} chambers of predetermined volume [2013-01] |
F15B 11/15 | . . | with special provision for automatic return [2019-01] |
F15B 11/16 | . | with two or more servomotors [2020-05] |
F15B 11/161 | . . | {with sensing of servomotor demand or load} [2013-01] |
F15B 11/162 | . . . | {for giving priority to particular servomotors or users} [2019-01] |
F15B 11/163 | . . . | {for sharing the pump output equally amongst users or groups of users, e.g. using anti-saturation, pressure compensation} [2013-01] |
F15B 11/165 | . . . | {for adjusting the pump output or bypass in response to demand} [2013-01] |
F15B 11/167 | . . . | {using pilot pressure to sense the demand} [2013-01] |
F15B 11/168 | . . . | {with at least one load sense pressure being derived from a work port load pressure but not being the work port load pressure itself} [2026-08] |
F15B 11/17 | . . | using two or more pumps [2013-01] |
F15B 11/18 | . . | used in combination for obtaining stepwise operation of a single controlled member [2013-01] |
F15B 11/183 | . . . | {Linear stepwise operation} [2013-01] |
F15B 11/186 | . . . | {Rotary stepwise operation} [2013-01] |
F15B 11/20 | . . | controlling several interacting or sequentially-operating members [2019-01] |
F15B 11/205 | . . . | {the position of the actuator controlling the fluid flow to the subsequent actuator} [2019-01] |
F15B 11/22 | . . | Synchronisation of the movement of two or more servomotors [2013-01] |
F15B 13/00 | Details of servomotor systems ({F15B 1/04, F15B 1/26, F15B 3/00, F15B 7/08, F15B 11/02, F15B 11/10,} F15B 15/00 take precedence){; Valves for servomotor systems} [2013-01] |
F15B 2013/002 | . | {Modular valves, i.e. consisting of an assembly of interchangeable components} [2013-01] |
F15B 2013/004 | . . | {Cartridge valves} [2013-01] |
F15B 2013/006 | . . | {Modular components with multiple uses, e.g. kits for either normally-open or normally-closed valves, interchangeable or reprogrammable manifolds} [2013-01] |
F15B 2013/008 | . | {Throttling member profiles} [2013-01] |
F15B 13/01 | . | Locking-valves or other detent {i.e. load-holding} devices [2019-01] |
F15B 13/015 | . . | {using an enclosed pilot flow valve} [2013-01] |
F15B 13/02 | . | Fluid distribution or supply devices characterised by their adaptation to the control of servomotors [2019-01] |
F15B 13/021 | . . | {Valves for interconnecting the fluid chambers of an actuator} [2019-01] |
F15B 13/022 | . . | {Flow-dividers; Priority valves} [2019-01] |
F15B 13/023 | . . | {Excess flow valves, e.g. for locking cylinders in case of hose burst} [2013-01] |
F15B 13/024 | . . | {Pressure relief valves} [2017-05] |
F15B 13/025 | . . | {Pressure reducing valves} [2013-01] |
F15B 13/026 | . . | {Pressure compensating valves} [2013-01] |
F15B 13/027 | . . | {Check valves} [2013-01] |
F15B 13/028 | . . | {Shuttle valves} [2013-01] |
F15B 13/029 | . . | {Counterbalance valves} [2013-01] |
F15B 13/04 | . . | for use with a single servomotor [2013-01] |
F15B 13/0401 | . . . | {Valve members; Fluid interconnections therefor} [2013-01] |
F15B 13/0402 | . . . . | {for linearly sliding valves, e.g. spool valves} [2013-01] |
F15B 13/0403 | . . . . . | {a secondary valve member sliding within the main spool, e.g. for regeneration flow (F15B 13/0418 takes precedence)} [2013-01] |
F15B 13/0405 | . . . . | {for seat valves, i.e. poppet valves} [2013-01] |
F15B 13/0406 | . . . . | {for rotary valves} [2013-01] |
F15B 13/0407 | . . . . | {Means for damping the valve member movement} [2013-01] |
F15B 2013/0409 | . . . . | {Position sensing or feedback of the valve member} [2013-01] |
F15B 2013/041 | . . . . | {with two positions} [2013-01] |
F15B 2013/0412 | . . . . | {with three positions} [2013-01] |
F15B 2013/0413 | . . . . | {with four or more positions} [2013-01] |
F15B 2013/0414 | . . . . | {Dosing devices} [2013-01] |
F15B 13/0416 | . . . | {with means or adapted for load sensing} [2019-01] |
F15B 13/0417 | . . . . | {Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves} [2013-01] |
F15B 13/0418 | . . . . . | {Load sensing elements sliding within a hollow main valve spool} [2013-01] |
F15B 13/042 | . . . |
F15B 13/0422 | . . . . | {with manually-operated pilot valves, e.g. joysticks} [2019-01] |
F15B 13/0424 | . . . . . | {the joysticks being provided with electrical switches or sensors} [2013-01] |
F15B 13/0426 | . . . . | {with fluid-operated pilot valves, i.e. multiple stage valves} [2013-01] |
F15B 2013/0428 | . . . . | {with switchable internal or external pilot pressure source} [2013-01] |
F15B 13/043 | . . . . | with electrically-controlled pilot valves [2019-01] |
F15B 13/0431 | . . . . . | {the electrical control resulting in an on-off function} [2013-01] |
F15B 13/0433 | . . . . . | {the pilot valves being pressure control valves (F15B 13/0435, F15B 13/0436, F15B 13/0438 take precedence)} [2013-01] |
F15B 13/0435 | . . . . . | {the pilot valves being sliding valves} [2013-01] |
F15B 13/0436 | . . . . . | {the pilot valves being of the steerable jet type} [2013-01] |
F15B 13/0438 | . . . . . | {the pilot valves being of the nozzle-flapper type} [2013-01] |
F15B 13/044 | . . . | operated by electrically-controlled means, e.g. solenoids, torque-motors [2019-01] |
F15B 13/0442 | . . . . | {with proportional solenoid allowing stable intermediate positions} [2013-01] |
F15B 13/0444 | . . . . | {with rotary electric motor} [2013-01] |
F15B 13/0446 | . . . . | {with moving coil, e.g. voice coil} [2013-01] |
F15B 2013/0448 | . . . . | {Actuation by solenoid and permanent magnet} [2013-01] |
F15B 13/06 | . . | for use with two or more servomotors [2013-01] |
F15B 13/07 | . . . | in distinct sequence [2013-01] |
F15B 13/08 | . . . | Assemblies of units, each for the control of a single servomotor only [2013-01] |
F15B 13/0803 | . . . . | {Modular units} [2013-01] |
F15B 13/0807 | . . . . . | {Manifolds} [2013-01] |
F15B 13/081 | . . . . . . | {Laminated constructions} [2013-01] |
F15B 13/0814 | . . . . . . | {Monoblock manifolds} [2013-01] |
F15B 13/0817 | . . . . . . | {Multiblock manifolds} [2013-01] |
F15B 13/0821 | . . . . . | {Attachment or sealing of modular units to each other} [2013-01] |
F15B 13/0825 | . . . . . . | {the modular elements being mounted on a common member, e.g. on a rail} [2013-01] |
F15B 13/0828 | . . . . . | {characterised by sealing means of the modular units} [2013-01] |
F15B 13/0832 | . . . . . | {Modular valves} [2013-01] |
F15B 13/0835 | . . . . . . | {Cartridge type valves} [2013-01] |
F15B 13/0839 | . . . . . . | {Stacked plate type valves} [2013-01] |
F15B 13/0842 | . . . . . . | {Monoblock type valves, e.g. with multiple valve spools in a common housing} [2013-01] |
F15B 13/0846 | . . . . . | {Electrical details} [2013-01] |
F15B 13/085 | . . . . . . | {Electrical controllers} [2013-01] |
F15B 13/0853 | . . . . . . | {Electric circuit boards} [2013-01] |
F15B 13/0857 | . . . . . . | {Electrical connecting means, e.g. plugs, sockets} [2013-01] |
F15B 13/086 | . . . . . . | {Sensing means, e.g. pressure sensors} [2013-01] |
F15B 13/0864 | . . . . . . | {Signalling means, e.g. LEDs} [2013-01] |
F15B 13/0867 | . . . . . . | {Data bus systems} [2013-01] |
F15B 13/0871 | . . . . . | {Channels for fluid} [2013-01] |
F15B 13/0875 | . . . . . | {Channels for electrical components, e.g. for cables or sensors} [2013-01] |
F15B 13/0878 | . . . . . | {Assembly of modular units} [2013-01] |
F15B 13/0882 | . . . . . . | {using identical modular elements} [2013-01] |
F15B 13/0885 | . . . . . . | {using valves combined with other components} [2013-01] |
F15B 13/0889 | . . . . . . . | {Valves combined with electrical components} [2013-01] |
F15B 13/0892 | . . . . . . . | {Valves combined with fluid components} [2013-01] |
F15B 13/0896 | . . . . . . | {using different types or sizes of valves} [2013-01] |
F15B 13/10 | . | Special arrangements for operating the actuated device {with or} without using fluid pressure, e.g. for emergency use [2013-01] |
F15B 13/12 | . | Special measures for increasing the sensitivity of the system [2013-01] |
F15B 13/14 | . | Special measures for giving the operating person a "feeling" of the response of the actuated device [2013-01] |
F15B 13/16 | . | Special measures for feedback {, e.g. by a follow-up device} [2019-01] |
F15B 15/00 | Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith [2019-01] |
F15B 15/02 | . | Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member [2017-08] |
F15B 15/04 | . . | with oscillating cylinder [2013-01] |
F15B 15/06 | . . | for mechanically converting rectilinear movement into non- rectilinear movement [2013-01] |
F15B 15/061 | . . . | {by unidirectional means} [2013-01] |
F15B 15/063 | . . . | {Actuator having both linear and rotary output, i.e. dual action actuator} [2013-01] |
F15B 15/065 | . . . | {the motor being of the rack-and-pinion type} [2013-01] |
F15B 15/066 | . . . | {the motor being of the scotch yoke type} [2013-01] |
F15B 15/068 | . . . | {the motor being of the helical type} [2013-01] |
F15B 15/08 | . | Characterised by the construction of the motor unit [2019-01] |
F15B 15/082 | . . | {the motor being of the slotted cylinder type} [2019-01] |
F15B 15/084 | . . | {the motor being of the rodless piston type, e.g. with cable, belt or chain} [2019-01] |
F15B 15/086 | . . . | {with magnetic coupling} [2013-01] |
F15B 15/088 | . . | {the motor using combined actuation, e.g. electric and fluid actuation} [2020-05] |
F15B 15/10 | . . | the motor being of diaphragm type [2019-01] |
F15B 15/103 | . . . | {using inflatable bodies that contract when fluid pressure is applied, e.g. pneumatic artificial muscles or McKibben-type actuators} [2013-01] |
F15B 15/106 | . . . | {the motor being of the pinching-roller type} [2013-01] |
F15B 15/12 | . . | of the oscillating-vane or curved-cylinder type [2013-01] |
F15B 15/14 | . . | of the straight-cylinder type [2013-01] |
F15B 15/1404 | . . . | {in clusters, e.g. multiple cylinders in one block} [2019-01] |
F15B 15/1409 | . . . | {with two or more independently movable working pistons} [2019-01] |
F15B 15/1414 | . . . | {with non-rotatable piston} [2013-01] |
F15B 15/1419 | . . . . | {of non-circular cross-section} [2013-01] |
F15B 15/1423 | . . . | {Component parts; Constructional details} [2013-01] |
F15B 15/1428 | . . . . | {Cylinders (F15B 15/1438 takes precedence)} [2013-01] |
F15B 15/1433 | . . . . | {End caps (F15B 15/1438 takes precedence)} [2013-01] |
F15B 15/1438 | . . . . | {Cylinder to end cap assemblies} [2013-01] |
F15B 15/1442 | . . . . . | {End cap sealings} [2016-05] |
F15B 15/1447 | . . . . | {Pistons; Piston to piston rod assemblies} [2013-01] |
F15B 15/1452 | . . . . . | {Piston sealings} [2016-05] |
F15B 15/1457 | . . . . | {Piston rods (F15B 15/1447 takes precedence)} [2013-01] |
F15B 15/1461 | . . . . . | {Piston rod sealings} [2016-05] |
F15B 15/1466 | . . . . | {Hollow piston sliding over a stationary rod inside the cylinder} [2019-01] |
F15B 15/1471 | . . . . | {Guiding means other than in the end cap (F15B 15/1466 takes precedence)} [2013-01] |
F15B 15/1476 | . . . . | {Special return means} [2013-01] |
F15B 15/148 | . . . . | {Lost-motion means between the piston and the output} [2013-01] |
F15B 15/1485 | . . . . | {Special measures for cooling or heating} [2013-01] |
F15B 15/149 | . . . | {Fluid interconnections, e.g. fluid connectors, passages} [2013-01] |
F15B 2015/1495 | . . . | {with screw mechanism attached to the piston} [2013-01] |
F15B 15/16 | . . . | of the telescopic type [2013-01] |
F15B 15/165 | . . . . | {with synchronisation of sections} [2013-01] |
F15B 15/17 | . . . | of differential-piston type [2013-01] |
F15B 15/18 | . | Combined units comprising both motor and pump [2019-01] |
F15B 15/19 | . | Pyrotechnical actuators [2013-01] |
F15B 15/20 | . | Other details {, e.g. assembly with regulating devices} [2016-08] |
F15B 15/202 | . . | {Externally-operated valves mounted in or on the actuator} [2013-01] |
F15B 15/204 | . . | {Control means for piston speed or actuating force without external control, e.g. control valve inside the piston (F15B 11/02, F15B 15/22 take precedence)} [2013-01] |
F15B 2015/206 | . . | {Combined actuation, e.g. electric and fluid actuated} [2013-01] |
F15B 2015/208 | . . | {Special fluid pressurisation means, e.g. thermal or electrolytic} [2013-01] |
F15B 15/22 | . . | for accelerating or decelerating the stroke [2013-01] |
F15B 15/221 | . . . | {for accelerating the stroke, e.g. by area increase} [2013-01] |
F15B 15/222 | . . . | {having a piston with a piston extension or piston recess which throttles the main fluid outlet as the piston approaches its end position} [2013-01] |
F15B 15/223 | . . . | {having a piston with a piston extension or piston recess which completely seals the main fluid outlet as the piston approaches its end position} [2013-01] |
F15B 15/224 | . . . | {having a piston which closes off fluid outlets in the cylinder bore by its own movement} [2013-01] |
F15B 15/225 | . . . | {with valve stems operated by contact with the piston end face or with the cylinder wall} [2013-01] |
F15B 15/226 | . . . | {having elastic elements, e.g. springs, rubber pads} [2013-01] |
F15B 15/227 | . . . | {having an auxiliary cushioning piston within the main piston or the cylinder end face} [2013-01] |
F15B 15/228 | . . . | {having shock absorbers mounted outside the actuator housing} [2013-01] |
F15B 15/24 | . . | for restricting the stroke [2013-01] |
F15B 15/26 | . . | Locking mechanisms [2019-01] |
F15B 15/261 | . . . | {using positive interengagement, e.g. balls and grooves, for locking in the end positions} [2013-01] |
F15B 15/262 | . . . | {using friction, e.g. brake pads} [2013-01] |
F15B 15/265 | . . . | {specially adapted for rodless pistons or slotted cylinders} [2013-01] |
F15B 2015/267 | . . . | {Manual locking or release} [2013-01] |
F15B 2015/268 | . . . | {Fluid supply for locking or release independent of actuator pressurisation} [2013-01] |
F15B 15/28 | . . | Means for indicating the position, e.g. end of stroke [2013-01] |
F15B 15/2807 | . . . | {Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches} [2013-01] |
F15B 15/2815 | . . . | {Position sensing, i.e. means for continuous measurement of position, e.g. LVDT} [2016-05] |
F15B 15/2823 | . . . . | {by a screw mechanism attached to the piston} [2013-01] |
F15B 15/283 | . . . . | {using a cable wrapped on a drum and attached to the piston} [2013-01] |
F15B 15/2838 | . . . . | {with out using position sensors, e.g. by volume flow measurement or pump speed} [2013-01] |
F15B 15/2846 | . . . . | {using detection of markings, e.g. markings on the piston rod} [2013-01] |
F15B 15/2853 | . . . . | {using potentiometers} [2013-01] |
F15B 15/2861 | . . . . | {using magnetic means} [2013-01] |
F15B 15/2869 | . . . . | {using electromagnetic radiation, e.g. radar or microwaves} [2013-01] |
F15B 15/2876 | . . . . . | {using optical means, e.g. laser} [2013-01] |
F15B 15/2884 | . . . . | {using sound, e.g. ultrasound} [2013-01] |
F15B 15/2892 | . . . | {characterised by the attachment means} [2013-01] |
F15B 17/00 | Combinations of telemotor and servomotor systems [2013-01] |
F15B 17/02 | . | in which a telemotor operates the control member of a servomotor [2013-01] |
F15B 18/00 | Parallel arrangements of independent servomotor systems [2013-01] |
F15B 19/00 | Testing; {Calibrating; Fault detection or monitoring; Simulation or modelling of} fluid-pressure systems or apparatus not otherwise provided for [2013-01] |
F15B 19/002 | . | {Calibrating} [2013-01] |
F15B 19/005 | . | {Fault detection or monitoring} [2013-01] |
F15B 19/007 | . | {Simulation or modelling} [2013-01] |
F15B 20/00 | Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems [2019-01] |
F15B 20/001 | . | {Double valve requiring the use of both hands simultaneously} [2013-01] |
F15B 20/002 | . | {Electrical failure} [2013-01] |
F15B 20/004 | . | {Fluid pressure supply failure} [2013-01] |
F15B 20/005 | . | {Leakage; Spillage; Hose burst} [2013-01] |
F15B 20/007 | . | {Overload} [2013-01] |
F15B 20/008 | . | {Valve failure} [2019-01] |
F15B 21/00 | Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass [2019-01] |
F15B 21/001 | . | {Servomotor systems with fluidic control} [2013-01] |
F15B 21/003 | . | {Systems with different interchangeable components, e.g. using preassembled kits} [2013-01] |
F15B 21/005 | . | {Filling or draining of fluid systems} [2013-01] |
F15B 21/006 | . | {Compensation or avoidance of ambient pressure variation} [2019-01] |
F15B 21/008 | . | {Reduction of noise or vibration} [2013-01] |
F15B 21/02 | . | Servomotor systems with program control derived from a store or timing device; Control devices therefor [2026-01] |
F15B 21/04 | . | Special measures taken in connection with the properties of the fluid [2019-01] |
F15B 21/041 | . . | Removal or measurement of solid or liquid contamination, e.g. filtering [2020-05] |
F15B 21/042 | . . | Controlling the temperature of the fluid [2021-08] |
F15B 21/044 | . . | Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding [2020-05] |
F15B 21/045 | . . | Compensating for variations in viscosity or temperature [2020-05] |
F15B 21/047 | . . | Preventing foaming, churning or cavitation [2020-05] |
F15B 21/048 | . . | Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators [2020-05] |
F15B 21/06 | . | Use of special fluids, e.g. liquid metal; Special adaptations of fluid-pressure systems, or control of elements therefor, to the use of such fluids [2013-01] |
F15B 21/065 | . . | {Use of electro- or magnetosensitive fluids, e.g. electrorheological fluid} [2013-01] |
F15B 21/08 | . | Servomotor systems incorporating electrically operated control means (F15B 21/02, {F15B 21/065} take precedence) [2013-01] |
F15B 21/082 | . . | {with different modes} [2013-01] |
F15B 21/085 | . . | {using a data bus, e.g. "CANBUS"} [2013-01] |
F15B 21/087 | . . | {Control strategy, e.g. with block diagram} [2013-01] |
F15B 21/10 | . | Delay devices or arrangements [2019-01] |
F15B 21/12 | . | Fluid oscillators or pulse generators [2019-01] |
F15B 21/125 | . . | {by means of a rotating valve} [2013-01] |
F15B 21/14 | . | Energy-recuperation means [2019-01] |
F15B 2201/00 | Accumulators [2013-01] |
F15B 2201/20 | . | Accumulator cushioning means [2013-01] |
F15B 2201/205 | . . | using gas [2013-01] |
F15B 2201/21 | . . | using springs [2013-01] |
F15B 2201/215 | . . | using weights [2013-01] |
F15B 2201/22 | . . | using elastic housings [2013-01] |
F15B 2201/30 | . | Accumulator separating means [2013-01] |
F15B 2201/305 | . . | without separating means [2013-01] |
F15B 2201/31 | . . | having rigid separating means, e.g. pistons [2013-01] |
F15B 2201/312 | . . . | Sealings therefor, e.g. piston rings [2013-01] |
F15B 2201/315 | . . | having flexible separating means [2013-01] |
F15B 2201/3151 | . . . | the flexible separating means being diaphragms or membranes [2013-01] |
F15B 2201/3152 | . . . | the flexible separating means being bladders [2013-01] |
F15B 2201/3153 | . . . | the flexible separating means being bellows [2013-01] |
F15B 2201/3154 | . . . | the flexible separating means being completely enclosed, e.g. using gas-filled balls or foam [2013-01] |
F15B 2201/3155 | . . . | characterised by the material of the flexible separating means [2013-01] |
F15B 2201/3156 | . . . | characterised by their attachment [2013-01] |
F15B 2201/3157 | . . . | Sealings for the flexible separating means [2013-01] |
F15B 2201/3158 | . . . | Guides for the flexible separating means, e.g. for a collapsed bladder [2013-01] |
F15B 2201/32 | . . | having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof [2013-01] |
F15B 2201/40 | . | Constructional details of accumulators not otherwise provided for [2013-01] |
F15B 2201/405 | . . | Housings [2013-01] |
F15B 2201/4053 | . . . | characterised by the material [2013-01] |
F15B 2201/4056 | . . . | characterised by the attachment of housing components [2013-01] |
F15B 2201/41 | . . | Liquid ports [2013-01] |
F15B 2201/411 | . . . | having valve means [2013-01] |
F15B 2201/413 | . . . | having multiple liquid ports [2013-01] |
F15B 2201/415 | . . | Gas ports [2013-01] |
F15B 2201/4155 | . . . | having valve means [2013-01] |
F15B 2201/42 | . . | Heat recuperators for isothermal compression and expansion [2013-01] |
F15B 2201/43 | . . | Anti-extrusion means [2013-01] |
F15B 2201/435 | . . . | being fixed to the separating means [2013-01] |
F15B 2201/50 | . | Monitoring, detection and testing means for accumulators [2013-01] |
F15B 2201/505 | . . | Testing of accumulators, e.g. for testing tightness [2013-01] |
F15B 2201/51 | . . | Pressure detection [2013-01] |
F15B 2201/515 | . . | Position detection for separating means [2013-01] |
F15B 2201/60 | . | Assembling or methods for making accumulators [2013-01] |
F15B 2201/605 | . . | Assembling or methods for making housings therefor [2013-01] |
F15B 2201/61 | . . | Assembling or methods for making separating means therefor [2013-01] |
F15B 2201/615 | . . | Assembling or methods for making ports therefor [2013-01] |
F15B 2211/00 | Circuits for servomotor systems [2013-01] |
F15B 2211/20 | . | Fluid pressure source, e.g. accumulator or variable axial piston pump [2013-01] |
F15B 2211/205 | . . | Systems with pumps [2013-01] |
F15B 2211/20507 | . . . | Type of prime mover [2013-01] |
F15B 2211/20515 | . . . . | Electric motor [2013-01] |
F15B 2211/20523 | . . . . | Internal combustion engine [2013-01] |
F15B 2211/2053 | . . . | Type of pump [2013-01] |
F15B 2211/20538 | . . . . | constant capacity [2013-01] |
F15B 2211/20546 | . . . . | variable capacity [2013-01] |
F15B 2211/20553 | . . . . . | with pilot circuit, e.g. for controlling a swash plate [2013-01] |
F15B 2211/20561 | . . . . | reversible [2013-01] |
F15B 2211/20569 | . . . . | capable of working as pump and motor [2013-01] |
F15B 2211/20576 | . . . | with multiple pumps [2013-01] |
F15B 2211/20584 | . . . . | Combinations of pumps with high and low capacity [2013-01] |
F15B 2211/20592 | . . . . | Combinations of pumps for supplying high and low pressure [2013-01] |
F15B 2211/21 | . . | Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge [2013-01] |
F15B 2211/212 | . . . | the pressure sources being accumulators [2013-01] |
F15B 2211/214 | . . . | the pressure sources being hydrotransformers [2013-01] |
F15B 2211/216 | . . . | the pressure sources being pneumatic-to-hydraulic converters [2013-01] |
F15B 2211/218 | . . . | the pressure sources being pyrotechnical charges [2013-01] |
F15B 2211/25 | . . | Pressure control functions [2013-01] |
F15B 2211/251 | . . . | High pressure control [2013-01] |
F15B 2211/252 | . . . | Low pressure control [2013-01] |
F15B 2211/253 | . . . | Pressure margin control, e.g. pump pressure in relation to load pressure [2013-01] |
F15B 2211/255 | . . | Flow control functions [2013-01] |
F15B 2211/26 | . . | Power control functions [2013-01] |
F15B 2211/265 | . . | Control of multiple pressure sources [2013-01] |
F15B 2211/2652 | . . . | without priority [2013-01] |
F15B 2211/2654 | . . . | one or more pressure sources having priority [2013-01] |
F15B 2211/2656 | . . . | by control of the pumps [2013-01] |
F15B 2211/2658 | . . . | by control of the prime movers [2013-01] |
F15B 2211/27 | . . | Directional control by means of the pressure source [2013-01] |
F15B 2211/275 | . . | Control of the prime mover, e.g. hydraulic control [2013-01] |
F15B 2211/30 | . | Directional control [2013-01] |
F15B 2211/305 | . . | characterised by the type of valves [2013-01] |
F15B 2211/30505 | . . . | Non-return valves, i.e. check valves [2013-01] |
F15B 2211/3051 | . . . . | Cross-check valves [2013-01] |
F15B 2211/30515 | . . . . | Load holding valves [2013-01] |
F15B 2211/3052 | . . . | Shuttle valves [2013-01] |
F15B 2211/30525 | . . . | Directional control valves, e.g. 4/3-directional control valve [2013-01] |
F15B 2211/3053 | . . . . | In combination with a pressure compensating valve [2013-01] |
F15B 2211/30535 | . . . . . | the pressure compensating valve is arranged between pressure source and directional control valve [2013-01] |
F15B 2211/3054 | . . . . . | the pressure compensating valve is arranged between directional control valve and output member [2013-01] |
F15B 2211/30545 | . . . . . | the pressure compensating valve is arranged between output member and directional control valve [2013-01] |
F15B 2211/3055 | . . . . . | the pressure compensating valve is arranged between directional control valve and return line [2013-01] |
F15B 2211/30555 | . . . . . | Inlet and outlet of the pressure compensating valve being connected to the directional control valve [2013-01] |
F15B 2211/3056 | . . . | Assemblies of multiple valves [2013-01] |
F15B 2211/30565 | . . . . | having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve [2013-01] |
F15B 2211/3057 | . . . . . | having two valves, one for each port of a double-acting output member [2013-01] |
F15B 2211/30575 | . . . . . | in a Wheatstone Bridge arrangement (also half bridges) [2013-01] |
F15B 2211/3058 | . . . . . | having additional valves for interconnecting the fluid chambers of a double-acting actuator, e.g. for regeneration mode or for floating mode [2024-08] |
F15B 2211/30585 | . . . . | having a single valve for multiple output members [2013-01] |
F15B 2211/3059 | . . . . | having multiple valves for multiple output members [2013-01] |
F15B 2211/30595 | . . . . . | with additional valves between the groups of valves for multiple output members [2013-01] |
F15B 2211/31 | . . | characterised by the positions of the valve element [2013-01] |
F15B 2211/3105 | . . . | Neutral or centre positions [2013-01] |
F15B 2211/3111 | . . . . | the pump port being closed in the centre position, e.g. so-called closed centre [2013-01] |
F15B 2211/3116 | . . . . | the pump port being open in the centre position, e.g. so-called open centre [2013-01] |
F15B 2211/3122 | . . . | Special positions other than the pump port being connected to working ports or the working ports being connected to the return line [2013-01] |
F15B 2211/3127 | . . . . | Floating position connecting the working ports and the return line [2013-01] |
F15B 2211/3133 | . . . . | Regenerative position connecting the working ports or connecting the working ports to the pump, e.g. for high-speed approach stroke [2013-01] |
F15B 2211/3138 | . . . | the positions being discrete [2013-01] |
F15B 2211/3144 | . . . | the positions being continuously variable, e.g. as realised by proportional valves [2013-01] |
F15B 2211/315 | . . | characterised by the connections of the valve or valves in the circuit [2013-01] |
F15B 2211/31505 | . . . | being connected to a pressure source and a return line [2013-01] |
F15B 2211/31511 | . . . . | having a single pressure source [2013-01] |
F15B 2211/31517 | . . . . | having multiple pressure sources [2013-01] |
F15B 2211/31523 | . . . | being connected to a pressure source and an output member [2013-01] |
F15B 2211/31529 | . . . . | having a single pressure source and a single output member [2013-01] |
F15B 2211/31535 | . . . . | having multiple pressure sources and a single output member [2013-01] |
F15B 2211/31541 | . . . . | having a single pressure source and multiple output members [2013-01] |
F15B 2211/31547 | . . . . | having multiple pressure sources and multiple output members [2013-01] |
F15B 2211/31552 | . . . | being connected to an output member and a return line [2013-01] |
F15B 2211/31558 | . . . . | having a single output member [2013-01] |
F15B 2211/31564 | . . . . | having multiple output members [2013-01] |
F15B 2211/3157 | . . . | being connected to a pressure source, an output member and a return line [2013-01] |
F15B 2211/31576 | . . . . | having a single pressure source and a single output member [2013-01] |
F15B 2211/31582 | . . . . | having multiple pressure sources and a single output member [2013-01] |
F15B 2211/31588 | . . . . | having a single pressure source and multiple output members [2013-01] |
F15B 2211/31594 | . . . . | having multiple pressure sources and multiple output members [2013-01] |
F15B 2211/32 | . . | characterised by the type of actuation [2013-01] |
F15B 2211/321 | . . . | mechanically [2013-01] |
F15B 2211/322 | . . . . | actuated by biasing means, e.g. spring-actuated [2013-01] |
F15B 2211/323 | . . . . . | the biasing means being adjustable [2013-01] |
F15B 2211/324 | . . . . | manually, e.g. by using a lever or pedal [2013-01] |
F15B 2211/325 | . . . . | actuated by an output member of the circuit [2013-01] |
F15B 2211/326 | . . . . . | with follow-up action [2013-01] |
F15B 2211/327 | . . . | electrically or electronically [2013-01] |
F15B 2211/328 | . . . . | with signal modulation, e.g. pulse width modulation [PWM] [2013-01] |
F15B 2211/329 | . . . | actuated by fluid pressure [2013-01] |
F15B 2211/35 | . . | Directional control combined with flow control [2013-01] |
F15B 2211/351 | . . . | Flow control by regulating means in feed line, i.e. meter-in control [2013-01] |
F15B 2211/353 | . . . | Flow control by regulating means in return line, i.e. meter-out control [2013-01] |
F15B 2211/355 | . . | Pilot pressure control [2013-01] |
F15B 2211/36 | . . | Pilot pressure sensing [2013-01] |
F15B 2211/365 | . . | Directional control combined with flow control and pressure control [2013-01] |
F15B 2211/40 | . | Flow control [2013-01] |
F15B 2211/405 | . . | characterised by the type of flow control means or valve [2013-01] |
F15B 2211/40507 | . . . | with constant throttles or orifices [2013-01] |
F15B 2211/40515 | . . . | with variable throttles or orifices [2013-01] |
F15B 2211/40523 | . . . | with flow dividers [2013-01] |
F15B 2211/4053 | . . . . | using valves [2013-01] |
F15B 2211/40538 | . . . . | using volumetric pumps or motors [2013-01] |
F15B 2211/40546 | . . . | with flow combiners [2013-01] |
F15B 2211/40553 | . . . | with pressure compensating valves [2013-01] |
F15B 2211/40561 | . . . . | the pressure compensating valve arranged upstream of the flow control means [2013-01] |
F15B 2211/40569 | . . . . | the pressure compensating valve arranged downstream of the flow control means [2013-01] |
F15B 2211/40576 | . . . | Assemblies of multiple valves [2013-01] |
F15B 2211/40584 | . . . . | the flow control means arranged in parallel with a check valve [2013-01] |
F15B 2211/40592 | . . . . | with multiple valves in parallel flow paths, [2013-01] |
F15B 2211/41 | . . | characterised by the positions of the valve element [2013-01] |
F15B 2211/411 | . . . | the positions being discrete [2013-01] |
F15B 2211/413 | . . . | the positions being continuously variable, e.g. as realised by proportional valves [2013-01] |
F15B 2211/415 | . . | characterised by the connections of the flow control means in the circuit [2013-01] |
F15B 2211/41509 | . . . | being connected to a pressure source and a directional control valve [2013-01] |
F15B 2211/41518 | . . . . | being connected to multiple pressure sources [2013-01] |
F15B 2211/41527 | . . . | being connected to an output member and a directional control valve [2013-01] |
F15B 2211/41536 | . . . . | being connected to multiple ports of an output member [2013-01] |
F15B 2211/41545 | . . . . | being connected to multiple output members [2013-01] |
F15B 2211/41554 | . . . | being connected to a return line and a directional control valve [2013-01] |
F15B 2211/41563 | . . . | being connected to a pressure source and a return line [2013-01] |
F15B 2211/41572 | . . . | being connected to a pressure source and an output member [2013-01] |
F15B 2211/41581 | . . . | being connected to an output member and a return line [2013-01] |
F15B 2211/4159 | . . . | being connected to a pressure source, an output member and a return line [2013-01] |
F15B 2211/42 | . . | characterised by the type of actuation [2013-01] |
F15B 2211/421 | . . . | mechanically [2013-01] |
F15B 2211/422 | . . . . | actuated by biasing means, e.g. spring-actuated [2013-01] |
F15B 2211/423 | . . . . | manually, e.g. by using a lever or pedal [2013-01] |
F15B 2211/424 | . . . . | actuated by an output member of the circuit [2013-01] |
F15B 2211/425 | . . . . . | with follow-up action [2013-01] |
F15B 2211/426 | . . . | electrically or electronically [2013-01] |
F15B 2211/427 | . . . . | with signal modulation, e.g. using pulse width modulation [PWM] [2013-01] |
F15B 2211/428 | . . . | actuated by fluid pressure [2013-01] |
F15B 2211/45 | . . | Control of bleed-off flow, e.g. control of bypass flow to the return line [2013-01] |
F15B 2211/455 | . . | Control of flow in the feed line, i.e. meter-in control [2013-01] |
F15B 2211/46 | . . | Control of flow in the return line, i.e. meter-out control [2017-05] |
F15B 2211/465 | . . | Flow control with pressure compensation [2013-01] |
F15B 2211/47 | . . | Flow control in one direction only [2013-01] |
F15B 2211/473 | . . . | without restriction in the reverse direction [2013-01] |
F15B 2211/476 | . . . | the flow in the reverse direction being blocked [2013-01] |
F15B 2211/50 | . | Pressure control [2013-01] |
F15B 2211/505 | . . | characterised by the type of pressure control means [2013-01] |
F15B 2211/50509 | . . . | the pressure control means controlling a pressure upstream of the pressure control means [2013-01] |
F15B 2211/50518 | . . . . | using pressure relief valves [2013-01] |
F15B 2211/50527 | . . . . . | using cross-pressure relief valves [2013-01] |
F15B 2211/50536 | . . . . | using unloading valves controlling the supply pressure by diverting fluid to the return line [2013-01] |
F15B 2211/50545 | . . . . | using braking valves to maintain a back pressure [2013-01] |
F15B 2211/50554 | . . . | the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve [2013-01] |
F15B 2211/50563 | . . . | the pressure control means controlling a differential pressure [2013-01] |
F15B 2211/50572 | . . . . | using a pressure compensating valve for controlling the pressure difference across a flow control valve [2013-01] |
F15B 2211/50581 | . . . . | using counterbalance valves [2013-01] |
F15B 2211/5059 | . . . . . | using double counterbalance valves [2013-01] |
F15B 2211/51 | . . | characterised by the positions of the valve element [2013-01] |
F15B 2211/511 | . . . | the positions being discrete [2013-01] |
F15B 2211/513 | . . . | the positions being continuously variable, e.g. as realised by proportional valves [2013-01] |
F15B 2211/515 | . . | characterised by the connections of the pressure control means in the circuit [2013-01] |
F15B 2211/5151 | . . . | being connected to a pressure source and a directional control valve [2013-01] |
F15B 2211/5152 | . . . . | being connected to multiple pressure sources [2013-01] |
F15B 2211/5153 | . . . | being connected to an output member and a directional control valve [2013-01] |
F15B 2211/5154 | . . . . | being connected to multiple ports of an output member [2013-01] |
F15B 2211/5155 | . . . . | being connected to multiple output members [2013-01] |
F15B 2211/5156 | . . . | being connected to a return line and a directional control valve [2013-01] |
F15B 2211/5157 | . . . | being connected to a pressure source and a return line [2013-01] |
F15B 2211/5158 | . . . | being connected to a pressure source and an output member [2013-01] |
F15B 2211/5159 | . . . | being connected to an output member and a return line [2013-01] |
F15B 2211/52 | . . | characterised by the type of actuation [2013-01] |
F15B 2211/521 | . . . | mechanically [2013-01] |
F15B 2211/522 | . . . . | actuated by biasing means, e.g. spring-actuated [2013-01] |
F15B 2211/523 | . . . . | manually, e.g. by using a lever or pedal [2013-01] |
F15B 2211/524 | . . . . | actuated by an output member of the circuit [2013-01] |
F15B 2211/525 | . . . . . | with follow-up action [2013-01] |
F15B 2211/526 | . . . | electrically or electronically [2013-01] |
F15B 2211/527 | . . . . | with signal modulation, e.g. pulse width modulation [PWM] [2013-01] |
F15B 2211/528 | . . . | actuated by fluid pressure [2013-01] |
F15B 2211/55 | . . | for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve [2013-01] |
F15B 2211/555 | . . | for assuring a minimum pressure, e.g. by using a back pressure valve [2013-01] |
F15B 2211/56 | . . | Control of an upstream pressure [2013-01] |
F15B 2211/565 | . . | Control of a downstream pressure [2013-01] |
F15B 2211/57 | . . | Control of a differential pressure [2013-01] |
F15B 2211/575 | . . | Pilot pressure control [2013-01] |
F15B 2211/5753 | . . . | for closing a valve [2013-01] |
F15B 2211/5756 | . . . | for opening a valve [2013-01] |
F15B 2211/60 | . | Circuit components or control therefor [2013-01] |
F15B 2211/605 | . . | Load sensing circuits [2013-01] |
F15B 2211/6051 | . . . | having valve means between output member and the load sensing circuit [2013-01] |
F15B 2211/6052 | . . . . | using check valves [2013-01] |
F15B 2211/6054 | . . . . | using shuttle valves [2013-01] |
F15B 2211/6055 | . . . . | using pressure relief valves [2013-01] |
F15B 2211/6057 | . . . . | using directional control valves [2013-01] |
F15B 2211/6058 | . . . | with isolator valves [2013-01] |
F15B 2211/61 | . . | Secondary circuits [2013-01] |
F15B 2211/611 | . . . | Diverting circuits, e.g. for cooling or filtering [2013-01] |
F15B 2211/613 | . . . | Feeding circuits [2013-01] |
F15B 2211/615 | . . | Filtering means [2013-01] |
F15B 2211/62 | . . | Cooling or heating means [2013-01] |
F15B 2211/625 | . . | Accumulators [2013-01] |
F15B 2211/63 | . . | Electronic controllers [2013-01] |
F15B 2211/6303 | . . . | using input signals [2013-01] |
F15B 2211/6306 | . . . . | representing a pressure [2013-01] |
F15B 2211/6309 | . . . . . | the pressure being a pressure source supply pressure [2013-01] |
F15B 2211/6313 | . . . . . | the pressure being a load pressure [2013-01] |
F15B 2211/6316 | . . . . . | the pressure being a pilot pressure [2013-01] |
F15B 2211/632 | . . . . | representing a flow rate [2013-01] |
F15B 2211/6323 | . . . . . | the flow rate being a pressure source flow rate [2013-01] |
F15B 2211/6326 | . . . . . | the flow rate being an output member flow rate [2013-01] |
F15B 2211/633 | . . . . | representing a state of the prime mover, e.g. torque or rotational speed [2013-01] |
F15B 2211/6333 | . . . . | representing a state of the pressure source, e.g. swash plate angle [2013-01] |
F15B 2211/6336 | . . . . | representing a state of the output member, e.g. position, speed or acceleration [2013-01] |
F15B 2211/634 | . . . . | representing a state of a valve [2013-01] |
F15B 2211/6343 | . . . . | representing a temperature [2013-01] |
F15B 2211/6346 | . . . . | representing a state of input means, e.g. joystick position [2013-01] |
F15B 2211/635 | . . | Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements [2013-01] |
F15B 2211/6355 | . . . | having valve means [2013-01] |
F15B 2211/65 | . . | Methods of control of the load sensing pressure [2013-01] |
F15B 2211/651 | . . . | characterised by the way the load pressure is communicated to the load sensing circuit [2013-01] |
F15B 2211/652 | . . . | the load sensing pressure being different from the load pressure [2013-01] |
F15B 2211/653 | . . . | the load sensing pressure being higher than the load pressure [2013-01] |
F15B 2211/654 | . . . | the load sensing pressure being lower than the load pressure [2013-01] |
F15B 2211/655 | . . | Methods of contamination control, i.e. methods of control of the cleanliness of circuit components or of the pressure fluid [2013-01] |
F15B 2211/66 | . . | Temperature control methods [2013-01] |
F15B 2211/665 | . . | Methods of control using electronic components [2013-01] |
F15B 2211/6651 | . . . | Control of the prime mover, e.g. control of the output torque or rotational speed [2013-01] |
F15B 2211/6652 | . . . | Control of the pressure source, e.g. control of the swash plate angle [2013-01] |
F15B 2211/6653 | . . . | Pressure control [2013-01] |
F15B 2211/6654 | . . . | Flow rate control [2013-01] |
F15B 2211/6655 | . . . | Power control, e.g. combined pressure and flow rate control [2013-01] |
F15B 2211/6656 | . . . | Closed loop control, i.e. control using feedback [2013-01] |
F15B 2211/6657 | . . . | Open loop control, i.e. control without feedback [2013-01] |
F15B 2211/6658 | . . . | Control using different modes, e.g. four-quadrant-operation, working mode and transportation mode [2013-01] |
F15B 2211/67 | . . | Methods for controlling pilot pressure [2013-01] |
F15B 2211/70 | . | Output members, e.g. hydraulic motors or cylinders or control therefor [2013-01] |
F15B 2211/705 | . . | characterised by the type of output members or actuators [2013-01] |
F15B 2211/7051 | . . . | Linear output members [2013-01] |
F15B 2211/7052 | . . . . | Single-acting output members [2013-01] |
F15B 2211/7053 | . . . . | Double-acting output members [2013-01] |
F15B 2211/7054 | . . . . . | Having equal piston areas [2013-01] |
F15B 2211/7055 | . . . . | having more than two chambers [2013-01] |
F15B 2211/7056 | . . . . . | Tandem cylinders [2013-01] |
F15B 2211/7057 | . . . . | being of the telescopic type [2013-01] |
F15B 2211/7058 | . . . | Rotary output members [2013-01] |
F15B 2211/71 | . . | Multiple output members, e.g. multiple hydraulic motors or cylinders [2013-01] |
F15B 2211/7107 | . . . | the output members being mechanically linked [2013-01] |
F15B 2211/7114 | . . . | with direct connection between the chambers of different actuators [2013-01] |
F15B 2211/7121 | . . . . | the chambers being connected in series [2013-01] |
F15B 2211/7128 | . . . . | the chambers being connected in parallel [2013-01] |
F15B 2211/7135 | . . . | Combinations of output members of different types, e.g. single-acting cylinders with rotary motors [2013-01] |
F15B 2211/7142 | . . . | the output members being arranged in multiple groups [2013-01] |
F15B 2211/715 | . . | having braking means [2013-01] |
F15B 2211/72 | . . | having locking means [2013-01] |
F15B 2211/75 | . . | Control of speed of the output member [2013-01] |
F15B 2211/755 | . . | Control of acceleration or deceleration of the output member [2013-01] |
F15B 2211/76 | . . | Control of force or torque of the output member [2013-01] |
F15B 2211/761 | . . . | Control of a negative load, i.e. of a load generating hydraulic energy [2013-01] |
F15B 2211/763 | . . . | Control of torque of the output member by means of a variable capacity motor, i.e. by a secondary control on the motor [2013-01] |
F15B 2211/765 | . . | Control of position or angle of the output member [2013-01] |
F15B 2211/7653 | . . . | at distinct positions, e.g. at the end position [2013-01] |
F15B 2211/7656 | . . . | with continuous position control [2013-01] |
F15B 2211/77 | . . | Control of direction of movement of the output member [2013-01] |
F15B 2211/7708 | . . . | in one direction only [2013-01] |
F15B 2211/7716 | . . . | with automatic return [2013-01] |
F15B 2211/7725 | . . . | with automatic reciprocation [2013-01] |
F15B 2211/7733 | . . . | providing vibrating movement, e.g. dither control for emptying a bucket [2013-01] |
F15B 2211/7741 | . . . | with floating mode, e.g. using a direct connection between both lines of a double-acting cylinder [2013-01] |
F15B 2211/775 | . . | Combined control, e.g. control of speed and force for providing a high speed approach stroke with low force followed by a low speed working stroke with high force, e.g. for a hydraulic press [2013-01] |
F15B 2211/78 | . . | Control of multiple output members [2013-01] |
F15B 2211/781 | . . . | one or more output members having priority [2013-01] |
F15B 2211/782 | . . . | Concurrent control, e.g. synchronisation of two or more actuators [2013-01] |
F15B 2211/783 | . . . | Sequential control [2013-01] |
F15B 2211/785 | . . | Compensation of the difference in flow rate in closed fluid circuits using differential actuators [2013-01] |
F15B 2211/80 | . | Other types of control related to particular problems or conditions [2013-01] |
F15B 2211/85 | . . | Control during special operating conditions [2013-01] |
F15B 2211/851 | . . . | during starting [2013-01] |
F15B 2211/853 | . . . | during stopping [2013-01] |
F15B 2211/855 | . . | Testing of fluid pressure systems [2013-01] |
F15B 2211/857 | . . | Monitoring of fluid pressure systems [2013-01] |
F15B 2211/86 | . . | Control during or prevention of abnormal conditions [2013-01] |
F15B 2211/8603 | . . . | the abnormal condition being an obstacle [2013-01] |
F15B 2211/8606 | . . . | the abnormal condition being a shock [2013-01] |
F15B 2211/8609 | . . . | the abnormal condition being cavitation [2013-01] |
F15B 2211/8613 | . . . | the abnormal condition being oscillations [2013-01] |
F15B 2211/8616 | . . . | the abnormal condition being noise or vibration [2013-01] |
F15B 2211/862 | . . . | the abnormal condition being electric or electronic failure [2013-01] |
F15B 2211/8623 | . . . . | Electric supply failure [2013-01] |
F15B 2211/8626 | . . . . | Electronic controller failure, e.g. software, EMV, electromagnetic interference [2013-01] |
F15B 2211/863 | . . . | the abnormal condition being a hydraulic or pneumatic failure [2013-01] |
F15B 2211/8633 | . . . . | Pressure source supply failure [2013-01] |
F15B 2211/8636 | . . . . | Circuit failure, e.g. valve or hose failure [2013-01] |
F15B 2211/864 | . . . . | Failure of an output member, e.g. actuator or motor failure [2013-01] |
F15B 2211/8643 | . . . | the abnormal condition being a human failure [2013-01] |
F15B 2211/8646 | . . . | the abnormal condition being hysteresis [2013-01] |
F15B 2211/865 | . . | Prevention of failures [2013-01] |
F15B 2211/87 | . . | Detection of failures [2013-01] |
F15B 2211/875 | . . | Control measures for coping with failures [2013-01] |
F15B 2211/8752 | . . . | Emergency operation mode, e.g. fail-safe operation mode [2013-01] |
F15B 2211/8755 | . . . | Emergency shut-down [2013-01] |
F15B 2211/8757 | . . . | using redundant components or assemblies [2013-01] |
F15B 2211/88 | . . | Control measures for saving energy [2013-01] |
F15B 2211/885 | . . | Control specific to the type of fluid, e.g. specific to magnetorheological fluid [2013-01] |
F15B 2211/8855 | . . . | Compressible fluids, e.g. specific to pneumatics [2013-01] |
F15B 2211/89 | . . | Control specific for achieving vacuum or "negative pressure" [2013-01] |
F15B 2211/895 | . . | Manual override [2013-01] |
F15B 2215/00 | Fluid-actuated devices for displacing a member from one position to another [2013-01] |
F15B 2215/30 | . | Constructional details thereof [2013-01] |
F15B 2215/305 | . . | characterised by the use of special materials [2013-01] |