IPC Subclass
F03B MACHINES OR ENGINES FOR LIQUIDS
Introduced: September 1968
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- Subclass:
- MACHINES OR ENGINES FOR LIQUIDS
Description
F03B covers turbomachinery and reciprocating devices that convert energy between flowing or pressurized liquids and mechanical work, including turbines, pumps, compressors, and hydraulic motors. This subclass encompasses both impulse and reaction turbines driven by water or other liquids, as well as positive-displacement and dynamic machines where liquid serves as the working medium. Related reciprocating engines driven by liquid pressure or flow are included, though steam and gas engines are classified separately in F03C and F03D respectively.
Related Keywords
water or tide MILL(S)
9 direct subcodes
Child Classifications
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- F03B 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
- F03B 11/00 Parts or details not provided for in, or of interest apart from, groups
- F03B 13/00 Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B 15/00 Controlling
- F03B 17/00 Other machines or engines
- F03B 3/00 Machines or engines of reaction type; Parts or details peculiar thereto
- F03B 5/00 Machines or engines characterised by non-bladed rotors, e.g. serrated, using friction
- F03B 7/00 Water wheels
- F03B 9/00 Endless-chain type machines or engines