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 F16H41/00)

Introduced: September 1968

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.

Title

Titles differ between systems:

IPC: MACHINES OR ENGINES FOR LIQUIDS

CPC: 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 F16H41/00)

Full Title

Full titles differ between systems:

IPC:

MACHINES OR ENGINES FOR LIQUIDS

CPC:

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 F16H41/00)

IPC and CPC are identically structured here. All 9 subcodes exist in both systems.

5 shared codes have differing titles between IPC and CPC.

Child Classifications

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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 IPC+CPC Available in IPC and CPC
F03B 11/00 Parts or details not provided for in, or of interest apart from, the preceding groups (controlling F03B15/00), +4 CPC IPC+CPC Available in IPC and CPC
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. H02K7/18); Power stations or aggregates (incorporating only machines or engines of positive-displacement type F03C; hydraulic engineering aspects E02B; ) IPC+CPC Available in IPC and CPC
F03B 15/00 Controlling (controlling in general G05 ) +1 CPC IPC+CPC Available in IPC and CPC
F03B 17/00 Other machines or engines +1 CPC IPC+CPC Available in IPC and CPC
F03B 3/00 Machines or engines of reaction type; Parts or details peculiar thereto IPC+CPC Available in IPC and CPC
F03B 5/00 Machines or engines characterised by non-bladed rotors, e.g. serrated, using friction IPC+CPC Available in IPC and CPC
F03B 7/00 Water wheels +2 CPC IPC+CPC Available in IPC and CPC
F03B 9/00 Endless-chain machines or engines +1 CPC IPC+CPC Available in IPC and CPC