F01L1/252 - CPC Classification Index

ClassID:

137190 ⎘

F01L1/252 - CPC Classification

Classification description:

Valve-gear or valve arrangements, e.g. lift-valve gear; Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically; Hydraulic tappets between cam and valve stem for side-valve engines

Recent Application in this class:

20110073064

2011-03-31

Integrally cast block and gaseous fuel injected generator engine

20100180851

2010-07-22

PISTON ENGINE COMPRISING MEMBER TO COVER BOTTOM FACE OF VALVE HEAD OF POPPET VALVE