Version: 2024.08
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CPC | COOPERATIVE PATENT CLASSIFICATION | |||
| F04D | NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J 41/12; electrodynamic pumps H02K 44/02) [2018-08] NOTES
WARNING
|
Pumping liquids, or liquids and elastic fluids, by rotary pumps (pumping liquids and elastic fluids at the same time F04D 31/00) [2013-01] |
F04D 1/00 |
F04D 1/003 | . | {Having contrarotating parts} [2013-01] |
F04D 1/006 | . | {double suction pumps} [2013-01] |
F04D 1/02 | . | having non-centrifugal stages, e.g. centripetal [2013-01] |
F04D 1/025 | . . | {Comprising axial and radial stages} [2017-05] |
F04D 1/04 | . | Helico-centrifugal pumps [2013-01] |
F04D 1/06 | . |
F04D 1/063 | . . | {of the vertically split casing type} [2013-01] |
F04D 1/066 | . . . | {the casing consisting of a plurality of annuli bolted together} [2013-01] |
F04D 1/08 | . . | the stages being situated concentrically [2013-01] |
F04D 1/10 | . . | with means for changing the flow-path through the stages, e.g. series-parallel, e.g. side loads [2013-01] |
F04D 1/12 | . | Pumps with scoops or like paring members protruding in the fluid circulating in a bowl [2013-01] |
F04D 1/14 | . | Pumps raising fluids by centrifugal force within a conical rotary bowl with vertical axis [2013-01] |
F04D 3/00 |
F04D 3/005 | . | {with a conventional single stage rotor} [2013-01] |
F04D 3/02 | . | of screw type [2013-01] |
F04D 5/00 |
F04D 5/001 | . | {Shear force pumps} [2013-01] |
F04D 5/002 | . | {Regenerative pumps (for elastic fluids F04D 23/008)} [2013-01] |
F04D 5/003 | . . | {of multistage type} [2013-01] |
F04D 5/005 | . . . | {the stages being radially offset} [2013-01] |
F04D 5/006 | . . . | {the stages being axially offset} [2013-01] |
F04D 5/007 | . . | {Details of the inlet or outlet} [2013-01] |
F04D 5/008 | . . | {Details of the stator, e.g. channel shape} [2013-01] |
F04D 7/00 | Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts (F04D 11/005, F04D 29/22 take precedence) [2013-01] |
F04D 7/02 | . | of centrifugal type [2013-01] |
F04D 7/04 | . . | the fluids being viscous or non-homogenous [2013-01] |
F04D 7/045 | . . . | {with means for comminuting, mixing stirring or otherwise treating} [2013-01] |
F04D 7/06 | . . | the fluids being hot or corrosive, e.g. liquid metals [2013-01] |
F04D 7/065 | . . . | {for liquid metal} [2013-01] |
F04D 7/08 | . . | the fluids being radioactive [2013-01] |
F04D 9/00 | Priming; Preventing vapour lock [2013-01] |
F04D 9/001 | . | {Preventing vapour lock (F04D 9/041 takes precedence)} [2013-01] |
F04D 9/002 | . . | {by means in the very pump (F04D 9/041 takes precedence)} [2013-01] |
F04D 9/003 | . . . | {separating and removing the vapour} [2013-01] |
F04D 9/004 | . | {Priming of not self-priming pumps} [2013-01] |
F04D 9/005 | . . | {by adducting or recycling liquid (F04D 9/006 takes precedence)} [2013-01] |
F04D 9/006 | . . | {by venting gas or using gas valves} [2013-01] |
F04D 9/007 | . | {Preventing loss of prime, siphon breakers (stopping of pumps F04D 15/02)} [2013-01] |
F04D 9/008 | . . | {by means in the suction mouth, e.g. foot valves} [2013-01] |
F04D 9/02 | . | Self-priming pumps [2013-01] |
F04D 9/04 | . | using priming pumps; using booster pumps to prevent vapour-lock [2017-08] |
F04D 9/041 | . . | {the priming pump having evacuating action (F04D 9/043 and F04D 9/06 take precedence)} [2013-01] |
F04D 9/042 | . . . | {and means for rendering its in operative} [2013-01] |
F04D 9/043 | . . | {the priming pump being hand operated or of the reciprocating type} [2013-01] |
F04D 9/044 | . . | {Means for rendering the priming pump inoperative} [2013-01] |
F04D 9/045 | . . . | {the means being liquid level sensors} [2013-01] |
F04D 9/046 | . . . . | {the means being floats} [2013-01] |
F04D 9/047 | . . . | {the means being flow sensors} [2013-01] |
F04D 9/048 | . . . | {the means being outlet pressure sensors} [2013-01] |
F04D 9/049 | . . . | {by operator interventions} [2013-01] |
F04D 9/06 | . . | of jet type [2013-01] |
F04D 9/065 | . . . | {the driving fluid being a gas or vapour, e.g. exhaust of a combustion engine} [2013-01] |
F04D 11/00 | Other rotary non-positive-displacement pumps (pumping installations or systems F04D 13/00) [2013-01] |
F04D 11/005 | . | {Swash-type impeller pumps} [2013-01] |
F04D 13/00 |
F04D 13/02 | . | Units comprising pumps and their driving means [2024-01] |
F04D 13/021 | . . | {containing a coupling} [2013-01] |
F04D 13/022 | . . . | {a coupling allowing slip, e.g. torque converter} [2013-01] |
F04D 13/023 | . . . . | {for reducing start torque} [2013-01] |
F04D 13/024 | . . . | {a magnetic coupling} [2013-01] |
F04D 13/025 | . . . . | {Details of the can separating the pump and drive area} [2013-01] |
F04D 13/026 | . . . . | {Details of the bearings} [2013-01] |
F04D 13/027 | . . . . | {Details of the magnetic circuit} [2013-01] |
F04D 13/028 | . . | {the driving means being a planetary gear} [2013-01] |
F04D 13/04 | . . | the pump being fluid driven [2013-01] |
F04D 13/043 | . . . | {the pump wheel carrying the fluid driving means} [2013-01] |
F04D 13/046 | . . . | {the fluid driving means being a hydraulic motor of the positive displacement type} [2013-01] |
F04D 13/06 | . . | the pump being electrically driven [2013-01] |
F04D 13/0606 | . . . | {Canned motor pumps} [2013-01] |
F04D 13/0613 | . . . . | {Special connection between the rotor compartments} [2013-01] |
F04D 13/062 | . . . . | {pressure compensation between motor- and pump- compartment} [2013-01] |
F04D 13/0626 | . . . . | {Details of the can} [2013-01] |
F04D 13/0633 | . . . . | {Details of the bearings} [2013-01] |
F04D 13/064 | . . . . | {Details of the magnetic circuit} [2013-01] |
F04D 13/0646 | . . . | {the hollow pump or motor shaft being the conduit for the working fluid} [2013-01] |
F04D 13/0653 | . . . | {the motor being flooded} [2013-01] |
F04D 13/066 | . . . | {Floating-units} [2013-01] |
F04D 13/0666 | . . . | {the motor being of the plane gap type} [2013-01] |
F04D 13/0673 | . . . | {the motor being of the inside-out type} [2013-01] |
F04D 13/068 | . . . | {Battery powered} [2013-01] |
F04D 13/0686 | . . . | {Mechanical details of the pump control unit (pump control F04D 15/00)} [2013-01] |
F04D 13/0693 | . . . | {Details or arrangements of the wiring} [2013-01] |
F04D 13/08 | . . . | for submerged use [2013-01] |
F04D 13/083 | . . . . | {and protected by a gas-bell} [2013-01] |
F04D 13/086 | . . . . | {the pump and drive motor are both submerged} [2013-01] |
F04D 13/10 | . . . . | adapted for use in mining bore holes [2013-01] |
F04D 13/12 | . | Combinations of two or more pumps (combinations with priming pumps or booster pumps to counteract vapour-lock F04D 9/04) [2013-01] |
F04D 13/14 | . . |
F04D 13/16 | . | with storage reservoirs [2013-01] |
F04D 15/00 | Control, e.g. regulation, of pumps, pumping installations or systems [2013-01] |
F04D 15/0005 | . | {by using valves} [2013-01] |
F04D 15/0011 | . . | {by-pass valves} [2013-01] |
F04D 15/0016 | . . | {mixing-reversing- or deviation valves} [2013-01] |
F04D 15/0022 | . . | {throttling valves or valves varying the pump inlet opening or the outlet opening} [2013-01] |
F04D 15/0027 | . | {Varying behaviour or the very pump (F04D 15/0055 and F04D 29/46 take precedence)} [2013-01] |
F04D 15/0033 | . . | {By-passing by increasing clearance between impeller and its casing} [2013-01] |
F04D 15/0038 | . . | {by varying the effective cross-sectional area of flow through the rotor} [2013-01] |
F04D 15/0044 | . . | {by introducing a gas} [2013-01] |
F04D 15/005 | . . | {the pumps being of the circumferential flow type} [2013-01] |
F04D 15/0055 | . | {Rotors with adjustable blades} [2013-01] |
F04D 15/0061 | . . | {responsive to temperature} [2013-01] |
F04D 15/0066 | . | {by changing the speed, e.g. of the driving engine} [2013-01] |
F04D 15/0072 | . | {Installation or systems with two or more pumps, wherein the flow path through the stages can be changed, e.g. series-parallel} [2013-01] |
F04D 15/0077 | . | {Safety measures (F04D 15/02 takes precedence)} [2013-01] |
F04D 15/0083 | . . | {Protection against sudden pressure change, e.g. check valves} [2013-01] |
F04D 15/0088 | . | {Testing machines} [2013-01] |
F04D 15/0094 | . | {Indicators of rotational movement} [2013-01] |
F04D 15/02 | . | Stopping of pumps, or operating valves, on occurrence of unwanted conditions [2013-01] |
F04D 15/0209 | . . | {responsive to a condition of the working fluid (F04D 15/029 takes precedence)} [2013-01] |
F04D 15/0218 | . . . | {the condition being a liquid level or a lack of liquid supply} [2013-01] |
F04D 15/0227 | . . . . | {Lack of liquid level being detected using a flow transducer} [2013-01] |
F04D 15/0236 | . . . . | {Lack of liquid level being detected by analysing the parameters of the electric drive, e.g. current or power consumption} [2013-01] |
F04D 15/0245 | . . | {responsive to a condition of the pump} [2013-01] |
F04D 15/0254 | . . . | {the condition being speed or load} [2013-01] |
F04D 15/0263 | . . . | {the condition being temperature, ingress of humidity or leakage} [2013-01] |
F04D 15/0272 | . . . | {the condition being wear or a position} [2013-01] |
F04D 15/0281 | . . | {responsive to a condition not otherwise provided for} [2013-01] |
F04D 15/029 | . . | {for pumps operating in parallel} [2013-01] |
Pumping elastic fluids by rotary pumps [2013-01] |
F04D 17/00 | Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps (F04D 21/00 takes precedence) [2016-08] |
F04D 17/02 | . | having non-centrifugal stages, e.g. centripetal [2013-01] |
F04D 17/025 | . . | {comprising axial flow and radial flow stages} [2013-01] |
F04D 17/04 | . . | of transverse-flow type [2013-01] |
F04D 17/06 | . | Helico-centrifugal pumps [2013-01] |
F04D 17/08 | . | Centrifugal pumps [2013-01] |
F04D 17/10 | . . | for compressing or evacuating [2013-01] |
F04D 17/105 | . . . | {with double suction} [2013-01] |
F04D 17/12 | . . . | Multi-stage pumps [2013-01] |
F04D 17/122 | . . . . | {the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors} [2013-01] |
F04D 17/125 | . . . . . | {the casing being vertically split} [2013-01] |
F04D 17/127 | . . . . | {with radially spaced stages, e.g. for contrarotating type} [2013-01] |
F04D 17/14 | . . . . | with means for changing the flow-path through the stages, e.g. series-parallel, e.g. side-loads, (surge control F04D 27/02) [2013-01] |
F04D 17/16 | . . | for displacing without appreciable compression [2013-01] |
F04D 17/161 | . . . | {Shear force pumps} [2013-01] |
F04D 17/162 | . . . | {Double suction pumps} [2013-01] |
F04D 17/164 | . . . | {Multi-stage fans, e.g. for vacuum cleaners} [2013-01] |
F04D 17/165 | . . . | {Axial entry and discharge} [2013-01] |
F04D 17/167 | . . . | {Operating by means of fibrous or porous elements (suction filters F04D 29/701), e.g. with sponge rotors} [2016-08] |
F04D 17/168 | . . . | {Pumps specially adapted to produce a vacuum} [2013-01] |
F04D 17/18 | . . | characterised by use of centrifugal force of liquids entrained in pumps {(, e.g. by means of an auxiliary liquid; fluid ring compressors F04C 19/00)} [2016-08] |
F04D 19/00 | Axial-flow pumps (F04D 21/00 takes precedence; {pump comprising axial flow and radial flow stages F04D 17/025}) [2015-11] |
F04D 19/002 | . | {Axial flow fans} [2013-01] |
F04D 19/005 | . . | {reversible fans} [2013-01] |
F04D 19/007 | . | {multistage fans} [2013-01] |
F04D 19/02 | . | Multi-stage pumps [2013-01] |
F04D 19/022 | . . | {with concentric rows of vanes;} [2013-01] |
F04D 19/024 | . . | {with contrarotating parts} [2013-01] |
F04D 19/026 | . . | {with a plurality of shafts rotating at different speeds (F04D 19/022 takes precedence)} [2013-01] |
F04D 19/028 | . . | {Layout of fluid flow through the stages} [2013-01] |
F04D 19/04 | . . | specially adapted to the production of a high vacuum, e.g. molecular pumps [2013-01] |
F04D 19/042 | . . . | {Turbomolecular vacuum pumps} [2013-01] |
F04D 19/044 | . . . | {Holweck-type pumps} [2013-01] |
F04D 19/046 | . . . | {Combinations of two or more different types of pumps} [2013-01] |
F04D 19/048 | . . . | {comprising magnetic bearings} [2013-01] |
F04D 21/00 | Pump involving supersonic speed of pumped fluids [2013-01] |
F04D 23/00 | Other rotary non-positive-displacement pumps (pumping installations or systems F04D 25/00) [2013-01] |
F04D 23/001 | . | {Pumps adapted for conveying materials or for handling specific elastic fluids} [2013-01] |
F04D 23/003 | . . | {of radial-flow type} [2013-01] |
F04D 23/005 | . . | {of axial-flow type} [2013-01] |
F04D 23/006 | . | {Creating a pulsating flow} [2013-01] |
F04D 23/008 | . | {Regenerative pumps (for liquids or for liquids and elastic fluids F04D 5/002)} [2013-01] |
F04D 25/00 |
F04D 25/02 | . | Units comprising pumps and their driving means [2024-01] |
F04D 25/022 | . . | {comprising a yielding coupling, e.g. hydraulic (a magnetic coupling F04D 25/026)} [2013-01] |
F04D 25/024 | . . | {the driving means being assisted by a power recovery turbine} [2013-01] |
F04D 25/026 | . . | {with a magnetic coupling} [2013-01] |
F04D 25/028 | . . | {the driving means being a planetary gear} [2013-01] |
F04D 25/04 | . . | the pump being fluid-driven {(pumps driven by exhaust gases F02B 37/00, F02B 39/00; turbochargers F02C 6/12)} [2013-01] |
F04D 25/045 | . . . | {the pump wheel carrying the fluid driving means, e.g. turbine blades} [2013-01] |
F04D 25/06 | . . |
F04D 25/0606 | . . . | {the electric motor being specially adapted for integration in the pump} [2013-01] |
F04D 25/0613 | . . . . | {the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator} [2013-01] |
F04D 25/062 | . . . . . | {Details of the bearings} [2013-01] |
F04D 25/0626 | . . . . . | {Details of the lubrication} [2013-01] |
F04D 25/0633 | . . . . . | {Details of the magnetic circuit} [2013-01] |
F04D 25/064 | . . . . . | {Details of the rotor} [2013-01] |
F04D 25/0646 | . . . . . | {Details of the stator} [2013-01] |
F04D 25/0653 | . . . . | {the motor having a plane air gap, e.g. disc-type} [2013-01] |
F04D 25/066 | . . . . | {Linear Motors} [2013-01] |
F04D 25/0666 | . . . . | {a sensor is integrated into the pump/motor design} [2013-01] |
F04D 25/0673 | . . . | {Battery powered} [2013-01] |
F04D 25/068 | . . . | {Mechanical details of the pump control unit (pump control details F04D 27/00)} [2013-01] |
F04D 25/0686 | . . . | {specially adapted for submerged use} [2013-01] |
F04D 25/0693 | . . . | {Details or arrangements of the wiring} [2013-01] |
F04D 25/08 | . . | the working fluid being air, e.g. for ventilation [2013-01] |
F04D 25/082 | . . . | {the unit having provision for cooling the motor} [2013-01] |
F04D 25/084 | . . . | {hand fans} [2013-01] |
F04D 25/086 | . . . . | {hand operated} [2013-01] |
F04D 25/088 | . . . | {Ceiling fans} [2013-01] |
F04D 25/10 | . . . | the unit having provisions for automatically changing direction of output air [2013-01] |
F04D 25/105 | . . . . | {by changing rotor axis direction, e.g. oscillating fans (interconnecting rotary motion and oscillating motion F16H)} [2013-01] |
F04D 25/12 | . . . | the unit being adapted for mounting in apertures [2013-01] |
F04D 25/14 | . . . . | and having shutters, e.g. automatically closed when not in use [2013-01] |
F04D 25/16 | . | Combinations of two or more pumps {; Producing two or more separate gas flows} [2023-08] |
F04D 25/163 | . . | {driven by a common gearing arrangement} [2013-01] |
F04D 25/166 | . . | {using fans} [2013-01] |
F04D 27/00 | Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids [2023-01] |
F04D 27/001 | . | {Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring} [2013-01] |
F04D 27/002 | . | {by varying geometry within the pumps, e.g. by adjusting vanes} [2016-05] |
F04D 27/003 | . | {by throttling (F04D 27/002 takes precedence)} [2016-05] |
F04D 27/004 | . | {by varying driving speed} [2016-05] |
F04D 27/005 | . | {by changing flow path between different stages or between a plurality of compressors; Load distribution between compressors} [2016-05] |
F04D 27/006 | . | {by influencing fluid temperatures} [2016-05] |
F04D 27/007 | . | {Conjoint control of two or more different functions} [2016-05] |
F04D 27/008 | . | {Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves} [2016-05] |
F04D 27/009 | . | {by bleeding, by passing or recycling fluid} [2016-05] |
F04D 27/02 | . |
F04D 27/0207 | . . | {by bleeding, bypassing or recycling fluids (influencing the boundary layer by an uncontrolled bleeding of the working fluid F04D 29/681)} [2015-09] |
F04D 27/0215 | . . . | {Arrangements therefor, e.g. bleed or by-pass valves} [2013-01] |
F04D 27/0223 | . . . | {Control schemes therefor} [2013-01] |
F04D 27/023 | . . . | {Details or means for fluid extraction} [2013-01] |
F04D 27/0238 | . . . | {Details or means for fluid reinjection} [2013-01] |
F04D 27/0246 | . . | {by varying geometry within the pumps, e.g. by adjusting vanes} [2013-01] |
F04D 27/0253 | . . | {by throttling (F04D 27/0246 takes precedence)} [2013-01] |
F04D 27/0261 | . . | {by varying driving speed} [2013-01] |
F04D 27/0269 | . . | {by changing flow path between different stages or between a plurality of compressors; load distribution between compressors} [2013-01] |
F04D 27/0276 | . . | {by influencing fluid temperature} [2013-01] |
F04D 27/0284 | . . | {Conjoint control of two or more different functions} [2013-01] |
F04D 27/0292 | . . | {Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves} [2013-01] |
F04D 29/00 |
F04D 29/002 | . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/005 | . | {Decorative aspects, i.e. features which have no effect on the functioning of the pump} [2013-01] |
F04D 29/007 | . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/02 | . |
F04D 29/023 | . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/026 | . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/04 | . | Shafts or bearings, or assemblies thereof (specially adapted for elastic fluid pumps F04D 29/05) [2013-01] |
| F04D 29/0405 | . . | {joining shafts, e.g. rigid couplings, quill shafts} [2013-01] WARNING
|
F04D 29/041 | . . | Axial thrust balancing [2013-01] |
F04D 29/0413 | . . . | {hydrostatic; hydrodynamic thrust bearings} [2013-01] |
F04D 29/0416 | . . . | {balancing pistons} [2013-01] |
F04D 29/042 | . . | Axially shiftable rotors (F04D 29/041 takes precedence {; control by creating a by-pass F04D 15/0027}) [2013-01] |
F04D 29/043 | . . | Shafts [2013-01] |
F04D 29/044 | . . . | Arrangements for joining or assembling shafts [2013-01] |
F04D 29/046 | . . | Bearings [2013-01] |
F04D 29/0462 | . . . | {Bearing cartridges} [2013-01] |
F04D 29/0465 | . . . | {Ceramic bearing designs} [2013-01] |
F04D 29/0467 | . . . | {Spherical bearings} [2013-01] |
F04D 29/047 | . . . | hydrostatic; hydrodynamic [2013-01] |
F04D 29/0473 | . . . . | {for radial pumps} [2013-01] |
F04D 29/0476 | . . . . | {for axial pumps} [2013-01] |
F04D 29/048 | . . . | magnetic; electromagnetic [2013-01] |
F04D 29/049 | . . . | Roller bearings [2013-01] |
F04D 29/05 | . | Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps [2013-01] |
F04D 29/051 | . . | Axial thrust balancing [2013-01] |
F04D 29/0513 | . . . | {hydrostatic; hydrodynamic thrust bearings} [2013-01] |
F04D 29/0516 | . . . | {balancing pistons} [2013-01] |
F04D 29/052 | . . | Axially shiftable rotors (F04D 29/051 takes precedence {; control by creating a by-pass F04D 27/0246}) [2013-01] |
F04D 29/053 | . . | Shafts [2013-01] |
F04D 29/054 | . . . | Arrangements for joining or assembling shafts [2013-01] |
F04D 29/056 | . . | Bearings [2013-01] |
F04D 29/0563 | . . . | {Bearings cartridges} [2013-01] |
F04D 29/0566 | . . . | {Ceramic bearing designs} [2013-01] |
F04D 29/057 | . . . | hydrostatic; hydrodynamic [2013-01] |
F04D 29/058 | . . . | magnetic; electromagnetic [2013-01] |
F04D 29/059 | . . . | Roller bearings [2013-01] |
F04D 29/06 | . |
F04D 29/061 | . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/063 | . . | specially adapted for elastic fluid pumps [2017-08] |
F04D 29/08 | . | Sealings [2013-01] |
F04D 29/083 | . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/086 | . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/10 | . . | Shaft sealings [2013-01] |
F04D 29/102 | . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/104 | . . . . | {the sealing fluid being other than the working fluid or being the working fluid treated} [2013-01] |
F04D 29/106 | . . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/108 | . . . . | {the sealing fluid being other than the working liquid or being the working liquid treated} [2013-01] |
F04D 29/12 | . . . | using sealing-rings [2013-01] |
F04D 29/122 | . . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/124 | . . . . . | {with special means for adducting cooling or sealing fluid} [2013-01] |
F04D 29/126 | . . . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/128 | . . . . . | {with special means for adducting cooling or sealing fluid} [2013-01] |
F04D 29/14 | . . . | operative only when pump is inoperative [2013-01] |
F04D 29/143 | . . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/146 | . . . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/16 | . . | between pressure and suction sides [2013-01] |
F04D 29/161 | . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/162 | . . . . | {of a centrifugal flow wheel} [2013-01] |
F04D 29/164 | . . . . | {of an axial flow wheel} [2013-01] |
F04D 29/165 | . . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/167 | . . . . | {of a centrifugal flow wheel} [2013-01] |
F04D 29/168 | . . . . | {of an axial flow wheel} [2013-01] |
F04D 29/18 | . |
F04D 29/181 | . . | {Axial flow rotors (F04D 29/185 take precedence)} [2013-01] |
F04D 29/183 | . . . | {Semi axial flow rotors} [2013-01] |
F04D 29/185 | . . | {Rotors consisting of a plurality of wheels} [2013-01] |
F04D 29/186 | . . | {Shaftless rotors (F04D 13/024 takes precedence)} [2013-01] |
F04D 29/188 | . . | {specially for regenerative pumps} [2013-01] |
F04D 29/20 | . . | Mounting rotors on shafts [2013-01] |
F04D 29/22 | . . | specially for centrifugal pumps [2013-01] |
F04D 29/2205 | . . . | {Conventional flow pattern (F04D 29/18 takes precedence)} [2013-01] |
F04D 29/2211 | . . . . | {More than one set of flow passages} [2013-01] |
F04D 29/2216 | . . . . | {Shape, geometry (F04D 29/2211 takes precedence)} [2013-01] |
F04D 29/2222 | . . . . | {Construction and assembly (F04D 29/2211 takes precedence)} [2013-01] |
F04D 29/2227 | . . . . . | {for special materials} [2013-01] |
F04D 29/2233 | . . . . . | {entirely open or stamped from one sheet} [2013-01] |
F04D 29/2238 | . . . | {Special flow patterns (F04D 11/005 takes precedence)} [2013-01] |
F04D 29/2244 | . . . . | {Free vortex} [2013-01] |
F04D 29/225 | . . . . | {Channel wheels, e.g. one blade or one flow channel} [2013-01] |
F04D 29/2255 | . . . . | {flow-channels with a special cross-section contour, e.g. ejecting, throttling or diffusing effect} [2013-01] |
F04D 29/2261 | . . . | {with special measures} [2013-01] |
F04D 29/2266 | . . . . | {for sealing or thrust balance (F04D 29/04 and F04D 29/16 take precedence)} [2013-01] |
F04D 29/2272 | . . . . | {for influencing flow or boundary layer} [2013-01] |
F04D 29/2277 | . . . . | {for increasing NPSH or dealing with liquids near boiling-point} [2013-01] |
F04D 29/2283 | . . . . | {for reverse pumping action} [2013-01] |
F04D 29/2288 | . . . . | {for comminuting, mixing or separating} [2013-01] |
F04D 29/2294 | . . . . | {for protection, e.g. against abrasion} [2013-01] |
F04D 29/24 | . . . | Vanes [2013-01] |
F04D 29/242 | . . . . | {Geometry, shape} [2013-01] |
F04D 29/245 | . . . . . | {for special effects} [2013-01] |
F04D 29/247 | . . . . | {elastic or self-adjusting} [2013-01] |
F04D 29/26 | . | Rotors specially for elastic fluids [2013-01] |
F04D 29/263 | . . | {mounting fan or blower rotors on shafts} [2013-01] |
F04D 29/266 | . . | {mounting compressor rotors on shafts} [2013-01] |
F04D 29/28 | . . | for centrifugal or helico-centrifugal pumps {for radial-flow or helico-centrifugal pumps} [2013-01] |
F04D 29/281 | . . . | {for fans or blowers} [2013-01] |
F04D 29/282 | . . . . | {the leading edge of each vane being substantially parallel to the rotation axis} [2013-01] |
F04D 29/283 | . . . . . | {rotors of the squirrel-cage type} [2013-01] |
F04D 29/284 | . . . | {for compressors} [2013-01] |
F04D 29/285 | . . . . | {the compressor wheel comprising a pair of rotatable bladed hub portions axially aligned and clamped together} [2013-01] |
F04D 29/286 | . . . . | {multi-stage rotors} [2013-01] |
F04D 29/287 | . . . | {with adjusting means} [2013-01] |
F04D 29/288 | . . . | {Part of the wheel having an ejecting effect, e.g. being bladeless diffuser} [2016-08] |
F04D 29/289 | . . . | {having provision against erosion or for dust-separation} [2013-01] |
F04D 29/30 | . . . | Vanes [2013-01] |
F04D 29/305 | . . . . | {Flexible vanes} [2013-01] |
F04D 29/32 | . . | for axial flow pumps [2018-08] |
F04D 29/321 | . . . | {for axial flow compressors} [2013-01] |
F04D 29/322 | . . . . | {Blade mountings} [2018-08] |
F04D 29/323 | . . . . . | {adjustable} [2013-01] |
F04D 29/324 | . . . . | {Blades} [2018-08] |
F04D 29/325 | . . . | {for axial flow fans (blade mountings F04D 29/34, blades F04D 29/38)} [2013-01] |
F04D 29/326 | . . . . | {comprising a rotating shroud} [2013-01] |
F04D 29/327 | . . . . | {with non identical blades} [2013-01] |
F04D 29/328 | . . . . | {with unequal distribution of blades around the hub} [2013-01] |
F04D 29/329 | . . . . | {Details of the hub} [2013-01] |
F04D 29/34 | . . . |
F04D 29/36 | . . . . |
F04D 29/362 | . . . . . | {during rotation} [2013-01] |
F04D 29/364 | . . . . . . | {The blades having only a predetermined number of possible positions} [2013-01] |
F04D 29/366 | . . . . . . | {Adjustment by interaction of inertion and lift} [2013-01] |
F04D 29/368 | . . . . . . | {Adjustment by differences of temperature} [2013-01] |
F04D 29/38 | . . . |
F04D 29/382 | . . . . | {Flexible blades} [2013-01] |
F04D 29/384 | . . . . | {characterised by form} [2013-01] |
F04D 29/386 | . . . . . | {Skewed blades} [2013-01] |
F04D 29/388 | . . . . | {characterised by construction} [2013-01] |
F04D 29/40 | . | Casings; Connections of working fluid {(bleed or by-pass valves F04D 15/0011, F04D 27/0215)} [2013-01] |
F04D 29/403 | . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/406 | . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/42 | . . | for radial or helico-centrifugal pumps [2013-01] |
F04D 29/4206 | . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/4213 | . . . . | {suction ports} [2013-01] |
F04D 29/422 | . . . . | {Discharge tongues (F04D 17/04 takes precedence)} [2013-01] |
F04D 29/4226 | . . . . | {Fan casings} [2013-01] |
F04D 29/4233 | . . . . . | {with volutes extending mainly in axial or radially inward direction} [2013-01] |
F04D 29/424 | . . . . . | {Double entry casings} [2013-01] |
F04D 29/4246 | . . . . . | {comprising more than one outlet} [2013-01] |
F04D 29/4253 | . . . . . | {with axial entry and discharge} [2013-01] |
F04D 29/426 | . . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/4266 | . . . . | {made of sheet metal} [2013-01] |
F04D 29/4273 | . . . . | {suction eyes} [2013-01] |
F04D 29/428 | . . . . | {Discharge tongues (F04D 17/04 takes precedence)} [2013-01] |
F04D 29/4286 | . . . . | {inside lining, e.g. rubber} [2016-08] |
F04D 29/4293 | . . . . | {Details of fluid inlet or outlet} [2013-01] |
F04D 29/44 | . . . | Fluid-guiding means, e.g. diffusers [2013-01] |
F04D 29/441 | . . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/442 | . . . . . | {rotating diffusers} [2013-01] |
F04D 29/444 | . . . . . | {Bladed diffusers} [2013-01] |
F04D 29/445 | . . . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/447 | . . . . . | {rotating diffusers} [2013-01] |
F04D 29/448 | . . . . . | {bladed diffusers} [2013-01] |
F04D 29/46 | . . . . | adjustable [2013-01] |
F04D 29/462 | . . . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/464 | . . . . . . | {adjusting flow cross-section, otherwise than by using adjustable stator blades} [2013-01] |
F04D 29/466 | . . . . . | {especially adapted for liquid fluid pumps} [2013-01] |
F04D 29/468 | . . . . . . | {adjusting flow cross-section, otherwise than by using adjustable stator blades} [2013-01] |
F04D 29/48 | . . . . . | for unidirectional fluid flow in reversible pumps {(rotors for reverse action F04D 29/2283)} [2013-01] |
F04D 29/483 | . . . . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/486 | . . . . . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/50 | . . . . . |
F04D 29/503 | . . . . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/506 | . . . . . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/52 | . . | for axial pumps [2013-01] |
F04D 29/522 | . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/524 | . . . . | {shiftable members for obturating part of the flow path} [2013-01] |
F04D 29/526 | . . . . | {Details of the casing section radially opposing blade tips (ducts F04D 29/545)} [2013-01] |
F04D 29/528 | . . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/54 | . . . | Fluid-guiding means, e.g. diffusers [2013-01] |
F04D 29/541 | . . . . | {Specially adapted for elastic fluid pumps (F04D 29/56 takes precedence)} [2013-01] |
F04D 29/542 | . . . . . | {Bladed diffusers (fixing blades to stators F01D 9/042)} [2013-01] |
F04D 29/544 | . . . . . . | {Blade shapes} [2013-01] |
F04D 29/545 | . . . . . | {Ducts} [2013-01] |
F04D 29/547 | . . . . . . | {having a special shape in order to influence fluid flow} [2013-01] |
F04D 29/548 | . . . . | {Specially adapted for liquid pumps (F04D 29/56 takes precedence)} [2013-01] |
F04D 29/56 | . . . . | adjustable [2013-01] |
F04D 29/563 | . . . . . | {specially adapted for elastic fluid pumps} [2013-01] |
F04D 29/566 | . . . . . | {specially adapted for liquid pumps} [2013-01] |
F04D 29/58 | . | Cooling (of machines or engines in general F01P); Heating; Diminishing heat transfer {(for the motor of air-pump units F04D 25/082; cooling of shafts or bearings F04D 29/04)} [2013-01] |
F04D 29/5806 | . . | {Cooling the drive system} [2013-01] |
F04D 29/5813 | . . | {Cooling the control unit} [2013-01] |
F04D 29/582 | . . | {specially adapted for elastic fluid pumps} [2013-01] |
F04D 29/5826 | . . . | {Cooling at least part of the working fluid in a heat exchanger} [2013-01] |
F04D 29/5833 | . . . . | {flow schemes and regulation thereto} [2013-01] |
F04D 29/584 | . . . | {cooling or heating the machine (F04D 29/5846, F04D 29/5853 take precedence)} [2013-01] |
F04D 29/5846 | . . . | {cooling by injection} [2013-01] |
F04D 29/5853 | . . . | {heat insulation or conduction} [2013-01] |
F04D 29/586 | . . | {specially adapted for liquid pumps} [2013-01] |
F04D 29/5866 | . . . | {Cooling at last part of the working fluid in a heat exchanger} [2013-01] |
F04D 29/5873 | . . . . | {flow schemes and regulation thereto} [2013-01] |
F04D 29/588 | . . . | {cooling or heating the machine (F04D 29/5886, F04D 29/5893 take precedence)} [2013-01] |
F04D 29/5886 | . . . | {cooling by injection} [2013-01] |
F04D 29/5893 | . . . | {heat insulation or conduction} [2013-01] |
F04D 29/60 | . |
F04D 29/601 | . . | {specially adapted for elastic fluid pumps} [2013-01] |
F04D 29/602 | . . . | {Mounting in cavities} [2013-01] |
F04D 29/603 | . . . . | {means for positioning from outside} [2013-01] |
F04D 29/604 | . . . . | {means for removing without depressurising the cavity} [2013-01] |
F04D 29/605 | . . | {specially adapted for liquid pumps} [2013-01] |
F04D 29/606 | . . . | {Mounting in cavities} [2013-01] |
F04D 29/607 | . . . . | {means for positioning from outside} [2013-01] |
F04D 29/608 | . . . . | {means for removing without depressurizing the cavity} [2013-01] |
F04D 29/62 | . . | of radial or helico-centrifugal pumps [2013-01] |
F04D 29/622 | . . . | {Adjusting the clearances between rotary and stationary parts} [2013-01] |
F04D 29/624 | . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/626 | . . . . | {Mounting or removal of fans} [2013-01] |
F04D 29/628 | . . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/64 | . . | of axial pumps [2013-01] |
F04D 29/642 | . . . | {by adjusting the clearances between rotary and stationary parts} [2013-01] |
F04D 29/644 | . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/646 | . . . . | {Mounting or removal of fans} [2013-01] |
F04D 29/648 | . . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/66 | . | Combating cavitation, whirls, noise, vibration or the like (gas-flow silencers for machines or engines in general F01N); Balancing (surge control F04D 27/02) [2013-01] |
F04D 29/661 | . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/662 | . . . | {Balancing of rotors (compensating unbalance G01M 1/36)} [2013-01] |
F04D 29/663 | . . . | {Sound attenuation} [2013-01] |
F04D 29/664 | . . . . | {by means of sound absorbing material} [2013-01] |
F04D 29/665 | . . . . | {by means of resonance chambers or interference} [2013-01] |
F04D 29/666 | . . . | {by means of rotor construction or layout, e.g. unequal distribution of blades or vanes} [2013-01] |
F04D 29/667 | . . . | {by influencing the flow pattern, e.g. suppression of turbulence} [2013-01] |
F04D 29/668 | . . . | {damping or preventing mechanical vibrations} [2013-01] |
F04D 29/669 | . . | {especially adapted for liquid pumps (F04D 29/18 takes precedence)} [2013-01] |
F04D 29/68 | . . |
F04D 29/681 | . . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/682 | . . . . | {by fluid extraction} [2013-01] |
F04D 29/684 | . . . . | {by fluid injection} [2013-01] |
F04D 29/685 | . . . . | {Inducing localised fluid recirculation in the stator-rotor interface} [2013-01] |
F04D 29/687 | . . . . | {Plasma actuators therefore} [2013-01] |
F04D 29/688 | . . . | {especially adapted for liquid pumps} [2013-01] |
F04D 29/70 | . | Suction grids; Strainers; Dust separation; Cleaning [2013-01] |
F04D 29/701 | . . | {especially adapted for elastic fluid pumps} [2013-01] |
F04D 29/703 | . . . | {specially for fans, e.g. fan guards} [2013-01] |
F04D 29/705 | . . . | {Adding liquids} [2013-01] |
F04D 29/706 | . . . | {Humidity separation} [2013-01] |
F04D 29/708 | . . | {specially for liquid pumps} [2013-01] |
Other non-positive-displacement pumps [2013-01] |
F04D 31/00 | Pumping liquids and elastic fluids at the same time [2013-01] |
F04D 33/00 | Non-positive-displacement pumps with other than pure rotation, e.g. of oscillating type (F04D 35/00 takes precedence; hand-held fans A45B) [2013-01] |
F04D 35/00 |