IPC Subgroup
F01L 25/02 by fluid means
Introduced: September 1968
Last revised: January 2006
Full Title
Drive, or adjustment during operation, of distribution or expansion valves by non-mechanical means > by fluid means
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- Subclass:
- CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1 direct subcode
Child Classifications
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- F01L 25/04 by working fluid of machine or engine, e.g. free-piston machine