F01L25/06 - CPC Classification Index

ClassID:

137429 ⎘

F01L25/06 - CPC Classification

Classification description:

Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine Arrangements with main and auxiliary valves, at least one of them being fluid-driven

Sub-classes:

F01L25/063 » {the auxiliary valve being actuated by the working motor-piston or piston-rod} 7
F01L25/066 » {piston or piston-rod being used as auxiliary valve} 4

Recent Application in this class:

20090211434

2009-08-27

FLUID PRESSURE POWERED APPARATUS

20060082950

2006-04-20

Air valve for an air driven reciprocating device

20050091980

2005-05-05

Reciprocating engine and inlet system therefor