| IPC 7 English version |
| F03-F03B01706 |
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| SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
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| F 03 | MACHINES OR ENGINES FOR LIQUIDS (for liquids and elastic fluids F01; positive-displacement machines for liquids F04); WIND, SPRING, WEIGHT, OR MISCELLANEOUS MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR |
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| F 03 B | MACHINES OR ENGINES FOR LIQUIDS (machines or engines for liquids and elastic fluids F01; positive-displacement engines for liquids F03C; positive-displacement machines for liquids F04) |
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| Notes |
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| (1) | This subclass covers: |
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| – | engines, other than of positive-displacement type, driven by liquids; |
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| – | machines, other than of positive-displacement type, for liquids. |
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| (2) | Attention is drawn to the Notes preceding class F01, especially as regards the definition of "reaction type". |
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| Subclass Index |
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| TURBINES: IMPULSE; REACTION |
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| MACHINES OR ENGINES: NON-BLADED ROTOR TYPE; WATER WHEELS; ENDLESS-CHAIN TYPE |
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| PARTS OR DETAILS OF ABOVE KINDS |
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| ADAPTATIONS OR COMBINATIONS |
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| CONTROLLING |
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| OTHER MACHINES OR ENGINES |
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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) |
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1/ | 00 | Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on bladed or like rotors, e.g. Pelton wheels; Parts or details peculiar thereto |
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1/ | 02 | . | Buckets; Bucket-carrying rotors |
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1/ | 04 | . | Nozzles (in general B05B); Nozzle-carrying members |
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3/ | 00 | Machines or engines of reaction type; Parts or details peculiar thereto |
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3/ | 02 | . | with radial flow at high-pressure side and axial flow at low-pressure side of rotors, e.g. Francis turbines |
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3/ | 04 | . | with substantially axial flow throughout rotors, e.g. propeller turbines |
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3/ | 06 | . | . | with adjustable blades, e.g. Kaplan turbines |
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3/ | 08 | . | with pressure/velocity transformation exclusively in rotors |
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3/ | 10 | . | characterised by having means for functioning alternatively as pumps or turbines |
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3/ | 12 | . | Blades; Blade-carrying rotors |
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3/ | 14 | . | . | Rotors having adjustable blades |
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3/ | 16 | . | Stators |
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3/ | 18 | . | . | Stator blades; Guide conduits or vanes, e.g. adjustable |
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5/ | 00 | Machines or engines characterised by non-bladed rotors, e.g. serrated, using friction |
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7/ | 00 | Water wheels |
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9/ | 00 | Endless-chain type machines or engines |
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11/ | 00 | Parts or details not provided for in, or of interest apart from, the preceding groups (controlling F03B 15/00) |
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11/ | 02 | . | Casings |
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11/ | 04 | . | for diminishing cavitation or vibration, e.g. balancing |
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11/ | 06 | . | Bearing arrangements |
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11/ | 08 | . | for removing foreign matter, e.g. mud |
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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 places for such apparatus, e.g. H02K 7/18); Power stations or aggregates (hydraulic-engineering aspects E02B; incorporating only machines or engines of positive-displacement type F03C) |
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13/ | 02 | . | Adaptations for drilling wells |
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13/ | 04 | . | Adaptations for use in dentistry |
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13/ | 06 | . | Stations or aggregates of water-storage type (turbines characterised by having means for functioning alternatively as pumps F03B 3/10) |
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13/ | 08 | . | Machine or engine aggregates in dams or the like; Conduits therefor |
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13/ | 10 | . | Submerged units incorporating electric generators or motors |
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13/ | 12 | . | characterised by using wave or tide energy |
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13/ | 14 | . | . | using wave energy [4] |
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13/ | 16 | . | . | . | using the relative movement between a wave-operated member and another member [4] |
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13/ | 18 | . | . | . | . | wherein the other member is fixed, at least at one point, with respect to the sea bed or shore [4] |
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13/ | 20 | . | . | . | . | wherein both members are movable relative to the sea bed or shore [4] |
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13/ | 22 | . | . | . | using the flow of water resulting from wave movements, e.g. to drive a hydraulic motor or turbine [4] |
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13/ | 24 | . | . | . | to produce a flow of air, e.g. to drive an air turbine [4] |
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13/ | 26 | . | . | using tide energy [4] |
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15/ | 00 | Controlling (controlling in general G05) |
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15/ | 02 | . | by varying liquid flow |
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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) |
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15/ | 06 | . | . | . | Regulating, i.e. acting automatically |
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15/ | 08 | . | . | . | . | by speed, e.g. by measuring electric frequency or liquid flow |
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15/ | 10 | . | . | . | . | . | without retroactive action |
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15/ | 12 | . | . | . | . | . | with retroactive action |
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15/ | 14 | . | . | . | . | by or of water level |
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15/ | 16 | . | . | . | . | by power output |
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15/ | 18 | . | . | . | . | for safety purposes, e.g. preventing overspeed |
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15/ | 20 | . | . | specially adapted for turbines with jets of high-velocity liquid impinging on bladed or like rotors (nozzles F03B 1/04) |
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15/ | 22 | . | . | . | for safety purposes |
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17/ | 00 | Other machines or engines |
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17/ | 02 | . | using hydrostatic thrust |
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17/ | 04 | . | . | Alleged perpetua mobilia |
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17/ | 06 | . | using liquid flow, e.g. of swinging-flap type |
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