F02B33/10 - CPC Classification Index

ClassID:

138728 ⎘

F02B33/10 - CPC Classification

Classification description:

Engines characterised by provision of pumps for charging or scavenging; Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder

Sub-classes:

F02B33/12 » the rear face of working piston acting as pumping member and co-operating with a pumping chamber isolated from crankcase, the connecting-rod passing through the chamber and co-operating with movable isolating member 25
F02B33/14 » working and pumping pistons forming stepped piston 8
F02B33/16 » working and pumping pistons having differing movements 3

Recent Application in this class:

20190170063

Opposed-piston compact engine with crankshafts rotating on a different plant to those of the cylinder axes

20120291743

Concentric cylinder engine

20090165754

Two-stroke opposed cylinder internal combustion engine with integrated positive displacement supercharger and regenerator

20090007861

Double action piston assembly

20070107679

Reciprocating cylinder engine

20050126519

Multi-chamber internal combustion engine