Version: 2025.05
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CPC | COOPERATIVE PATENT CLASSIFICATION | |||
| F03B | MACHINES OR ENGINES FOR LIQUIDS (positive-displacement engines for liquid F03C; machines for liquids and gases F01; positive-displacement machines for liquids F04, rotary fluid gearing of the hydrokinetic type F16H 41/00) [2018-08] NOTES
WARNING
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Non-positive-displacement machines or engines characterised by specified type, e.g. water turbines (adaptations of machines or engines for special use F03B 13/00; controlling F03B 15/00) [2013-01] |
F03B 1/00 | Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on blades or like rotors, e.g. Pelton wheels; Parts or details peculiar thereto [2013-01] |
F03B 1/02 | . | Buckets; Bucket-carrying rotors [2013-01] |
F03B 1/04 | . |
F03B 3/00 | Machines or engines of reaction type; Parts or details peculiar thereto [2013-01] |
F03B 3/02 | . | with radial flow at high-pressure side and axial flow at low-pressure side of rotors, e.g. Francis turbines {(rotors per se F03B 3/125)} [2013-01] |
F03B 3/04 | . | with substantially axial flow throughout rotors, e.g. propeller turbines {(rotors per se F03B 3/126)} [2013-01] |
F03B 3/06 | . . |
F03B 3/08 | . | with pressure-velocity transformation exclusively in rotors [2013-01] |
F03B 3/10 | . | characterised by having means for functioning alternatively as pumps or turbines {(starting F03B 15/005)} [2013-01] |
F03B 3/103 | . . | {the same wheel acting as turbine wheel and as pump wheel} [2013-01] |
F03B 3/106 | . . | {the turbine wheel and the pumps wheel being mounted in adjacent positions on the same shaft in a single casing} [2013-01] |
F03B 3/12 | . | Blades; Blade-carrying rotors [2013-01] |
F03B 3/121 | . . | {Blades, their form or construction} [2013-01] |
F03B 3/123 | . . . | {specially designed as adjustable blades, e.g. for Kaplan-type turbines} [2013-01] |
F03B 3/125 | . . | {Rotors for radial flow at high-pressure side and axial flow at low-pressure side, e.g. for Francis-type turbines} [2013-01] |
F03B 3/126 | . . | {Rotors for essentially axial flow, e.g. for propeller turbines (with adjustable blades F03B 3/14)} [2013-01] |
F03B 3/128 | . . | {Mounting, demounting} [2013-01] |
F03B 3/14 | . . |
F03B 3/145 | . . . | {Mechanisms for adjusting the blades (if the regulation aspect is preponderant, see F03B 15/00 and subgroups)} [2017-05] |
F03B 3/16 | . | Stators [2013-01] |
F03B 3/18 | . . | Stator blades; Guide conduits or vanes, e.g. adjustable {(conduits in dams or the like F03B 13/08; arrangement of valves F03B 11/004)} [2017-08] |
F03B 3/183 | . . . | {Adjustable vanes, e.g. wicket gates} [2013-01] |
F03B 3/186 | . . . | {Spiral or volute casings} [2013-01] |
F03B 5/00 | Machines or engines characterised by non-bladed rotors, e.g. serrated, using friction [2013-01] |
F03B 7/00 |
F03B 7/003 | . | {with buckets receiving the liquid} [2013-01] |
F03B 7/006 | . | {of the endless-chain type} [2013-01] |
F03B 9/00 | Endless-chain machines or engines [2013-01] |
F03B 9/005 | . | {with buckets receiving the liquid} [2013-01] |
F03B 11/00 | Parts or details not provided for in, or of interest apart from, the preceding groups (controlling F03B 15/00), {e.g. wear-protection couplings, between turbine and generator} [2013-01] |
F03B 11/002 | . | {Injecting air or other fluid (F03D 80/40, F03B 11/04, F03B 15/00 take precedence)} [2016-05] |
F03B 11/004 | . | {Valve arrangements (F03B 3/10 takes precedence; adjustable wicket gates F03B 3/183; valves in general F16K)} [2013-01] |
F03B 11/006 | . | {Sealing arrangements (F03B 3/14, F03B 3/183, F03B 13/083 takes precedence; sealings in general F16J)} [2013-01] |
F03B 11/008 | . | {Measuring or testing arrangements (in general G01)} [2013-01] |
F03B 11/02 | . |
F03B 11/025 | . . | {Covers} [2013-01] |
F03B 11/04 | . | for diminishing cavitation or vibration, e.g. balancing [2013-01] |
F03B 11/06 | . | Bearing arrangements [2013-01] |
F03B 11/063 | . . | {Arrangements for balancing axial thrust} [2013-01] |
F03B 11/066 | . . . | {in vertical axis machines} [2013-01] |
F03B 11/08 | . | for removing foreign matter, e.g. mud [2013-01] |
F03B 13/00 | Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus (if the apparatus aspects are predominant, see the relevant subclasses for such apparatus, e.g. H02K 7/18); Power stations or aggregates (incorporating only machines or engines of positive-displacement type F03C; hydraulic engineering aspects E02B; {combinations with wind energy converters F03D 9/008}) [2013-01] |
F03B 13/02 | . | Adaptations for drilling wells [2013-01] |
F03B 13/04 | . | Adaptations for use in dentistry {for driving tools or the like having relatively small outer diameter, e.g. pipe cleaning tools} [2013-01] |
F03B 13/06 | . | Stations or aggregates of water-storage type, {e.g. comprising a turbine and a pump}(turbines characterised by having means for functioning alternatively as pumps F03B 3/10) [2013-01] |
F03B 13/08 | . | Machine or engine aggregates in dams or the like; Conduits therefor {, e.g. diffusors (bulb groups F03B 13/105)} [2017-08] |
F03B 13/083 | . . | {The generator rotor being mounted as turbine rotor rim} [2013-01] |
F03B 13/086 | . . | {Plants characterised by the use of siphons; their regulation (siphon weirs E02B 7/18; siphons in general F04F 10/00)} [2013-01] |
F03B 13/10 | . | Submerged units incorporating electric generators or motors [2013-01] |
F03B 13/12 | . | characterised by using wave or tide energy [2013-01] |
F03B 13/14 | . . | using wave energy [2013-01] |
F03B 13/141 | . . . | {with a static energy collector} [2013-01] |
F03B 13/142 | . . . . | {which creates an oscillating water column} [2013-01] |
F03B 13/144 | . . . . | {which lifts water above sea level} [2013-01] |
F03B 13/145 | . . . . . | {for immediate use in an energy converter} [2017-05] |
F03B 13/147 | . . . . . | {for later use} [2013-01] |
F03B 13/148 | . . . | {using the static pressure increase due to the wave} [2013-01] |
F03B 13/16 | . . . | using the relative movement between a wave-operated member, {i.e. a "wom"} and another member, {i.e. a reaction member or "rem"} [2013-01] |
F03B 13/18 | . . . . | where the other member, {i.e. rem} is fixed, at least at one point, with respect to the sea bed or shore [2013-01] |
F03B 13/1805 | . . . . . | {and the wom is hinged to the rem} [2013-01] |
F03B 13/181 | . . . . . . | {for limited rotation} [2013-01] |
F03B 13/1815 | . . . . . . . | {with an up-and-down movement} [2013-01] |
F03B 13/182 | . . . . . . . | {with a to-and-fro movement} [2013-01] |
F03B 13/1825 | . . . . . . | {for 360° rotation} [2013-01] |
F03B 13/183 | . . . . . . . | {of a turbine-like wom} [2013-01] |
F03B 13/1835 | . . . . . . . | {of an endless-belt type wom} [2013-01] |
F03B 13/184 | . . . . . . . | {of a water-wheel type wom} [2013-01] |
F03B 13/1845 | . . . . . | {and the wom slides relative to the rem} [2013-01] |
F03B 13/185 | . . . . . . | {not vertically} [2013-01] |
F03B 13/1855 | . . . . . . | {where the connection between wom and conversion system takes tension and compression (F03B 13/187, F03B 13/1875 take precedence)} [2013-01] |
F03B 13/186 | . . . . . . . | {the connection being of the rack-and-pinion type} [2013-01] |
F03B 13/1865 | . . . . . . | {where the connection between wom and conversion system takes tension only (F03B 13/187, F03B 13/1875 take precedence)} [2013-01] |
F03B 13/187 | . . . . . . | {and the wom directly actuates the piston of a pump} [2013-01] |
F03B 13/1875 | . . . . . . | {and the wom is the piston or the cylinder in a pump} [2013-01] |
F03B 13/188 | . . . . . | {and the wom is flexible or deformable} [2013-01] |
F03B 13/1885 | . . . . . | {and the wom is tied to the rem} [2013-01] |
F03B 13/189 | . . . . . . | {acting directly on the piston of a pump} [2013-01] |
F03B 13/1895 | . . . . . . | {where the tie is a tension/compression member} [2013-01] |
F03B 13/20 | . . . . | wherein both members {, i.e. wom and rem} are movable relative to the sea bed or shore [2016-08] |
F03B 13/22 | . . . | using the flow of water resulting from wave movements to drive a motor or turbine {(F03B 13/144 takes precedence)} [2013-01] |
F03B 13/24 | . . . |
F03B 13/26 | . . | using tide energy [2013-01] |
F03B 15/00 | Controlling (controlling in general G05 {; regulation of plants characterised by the use of siphons F03B 13/086}) [2017-08] |
F03B 15/005 | . | {Starting, also of pump-turbines} [2013-01] |
F03B 15/02 | . | by varying liquid flow [2013-01] |
F03B 15/04 | . . | of turbines (rotors having adjustable blades F03B 3/06, F03B 3/14; adjustable guide vanes F03B 3/18; specially adapted for turbines with jets of high-velocity liquid impinging on bladed or like rotors F03B 15/20) [2017-05] |
F03B 15/06 | . . . | Regulating, i.e. acting automatically [2013-01] |
F03B 15/08 | . . . . | by speed, e.g. by measuring electric frequency or liquid flow [2013-01] |
F03B 15/10 | . . . . . | without retroactive action [2013-01] |
F03B 15/12 | . . . . . | with retroactive action [2013-01] |
F03B 15/14 | . . . . | by or of water level [2013-01] |
F03B 15/16 | . . . . | by power output [2013-01] |
F03B 15/18 | . . . . | for safety purposes, e.g. preventing overspeed [2017-08] |
F03B 15/20 | . . | specially adapted for turbines with jets of high-velocity liquid impinging on bladed or like rotors (nozzles F03B 1/04) [2013-01] |
F03B 15/22 | . . . | for safety purposes [2013-01] |
F03B 17/00 | Other machines or engines [2013-01] |
F03B 17/005 | . | {Installations wherein the liquid circulates in a closed loop (F03B 13/06 takes precedence); Alleged perpetua mobilia of this or similar kind (perpetua mobilia using hydrostatic thrust or buoyancy F03B 17/04)} [2013-01] |
F03B 17/02 | . | using hydrostatic thrust [2013-01] |
F03B 17/06 | . | using liquid flow {with predominantly kinetic energy conversion}, e.g. of swinging-flap type {, "run-of-river", "ultra-low head" (F03B 13/264 takes precedence)} [2017-08] |
F03B 17/061 | . . | {with rotation axis substantially in flow direction} [2013-01] |
F03B 17/062 | . . | {with rotation axis substantially at right angle to flow direction} [2013-01] |
F03B 17/063 | . . . | {the flow engaging parts having no movement relative to the rotor during its rotation} [2013-01] |
F03B 17/064 | . . . . | {and a rotor of the endless-chain type} [2013-01] |
F03B 17/065 | . . . | {the flow engaging parts having a cyclic movement relative to the rotor during its rotation} [2013-01] |
F03B 17/066 | . . . . | {and a rotor of the endless-chain type} [2013-01] |
F03B 17/067 | . . . . | {the cyclic relative movement being positively coupled to the movement of rotation} [2013-01] |
F03B 17/068 | . . . . . | {and a rotor of the endless-chain type} [2013-01] |