IPC Classification

Class code (prefix) Descriptions Number of results
F03C 1/00 Reciprocating-piston liquid engines
F03C 1/02 Reciprocating-piston liquid engines with multiple cylinders, characterised by the number or arrangement of cylinders
F03C 1/03 Reciprocating-piston liquid engines with multiple cylinders, characterised by the number or arrangement of cylinders with movement in two directions being obtained by two single-acting piston liquid engines, each acting in one direction
F03C 1/04 Reciprocating-piston liquid engines with multiple cylinders, characterised by the number or arrangement of cylinders with cylinders in star- or fan-arrangement
F03C 1/06 Reciprocating-piston liquid engines with multiple cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
F03C 1/007 Reciprocating-piston liquid engines with single cylinder, double-acting piston
F03C 1/08 Distributing valve-gear peculiar thereto
F03C 1/10 Distributing valve-gear peculiar thereto actuated by piston or piston-rod
F03C 1/12 Distributing valve-gear peculiar thereto actuated by piston or piston-rod mechanically
F03C 1/013 Reciprocating-piston liquid engines with single cylinder, single-acting piston
F03C 1/14 Distributing valve-gear peculiar thereto actuated by the driving liquid of the engine
F03C 1/16 Speed controlling, equalising, or cushioning
F03C 1/20 Distributing valve-gear peculiar thereto specially adapted for engines generating vibration only
F03C 1/22 Reciprocating-piston liquid engines with movable cylinders
F03C 1/24 Reciprocating-piston liquid engines with movable cylinders in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders
F03C 1/26 Reciprocating-piston liquid engines adapted for special use or combined with apparatus driven thereby
F03C 1/28 Pistons specially adapted therefor
F03C 1/30 Cams specially adapted therefor
F03C 1/32 Cylinders specially adapted therefor
F03C 1/34 Distribution members specially adapted for multiple-cylinder engines
F03C 1/36 Cylindrical distribution members
F03C 1/38 Plate-like distribution members
F03C 1/40 Control specially adapted therefor
F03C 1/047 Reciprocating-piston liquid engines with multiple cylinders, characterised by the number or arrangement of cylinders with cylinders in star- or fan-arrangement the pistons co-operating with an actuated element at the outer ends of the cylinders
F03C 1/053 Reciprocating-piston liquid engines with multiple cylinders, characterised by the number or arrangement of cylinders with cylinders in star- or fan-arrangement the pistons co-operating with an actuated element at the inner ends of the cylinders
F03C 1/247 Reciprocating-piston liquid engines with movable cylinders in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders with cylinders in star- or fan-arrangement
F03C 1/253 Reciprocating-piston liquid engines with movable cylinders in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders with cylinder axes generally coaxial with, or parallel to, main shaft axis
F03C 2/00 Rotary-piston engines
F03C 2/02 Rotary-piston engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
F03C 2/08 Rotary-piston engines of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
F03C 2/22 Rotary-piston engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth-equivalents than the outer member
F03C 2/24 Rotary-piston engines of counter-engagement type, i.e. the movement of co-operating members at the points of engagement being in opposite directions
F03C 2/30 Rotary-piston engines having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
F03C 4/00 Oscillating-piston engines
F03C 7/00 Engines of flexible-wall type
F03C 99/00 Subject matter not provided for in other groups of this subclass