IPC Subgroup
F01D 11/02 by non-contact sealings, e.g. of labyrinth type
Introduced: September 1968
Last revised: January 2006
Full Title
Preventing or minimising internal leakage of working fluid, e.g. between stages > by non-contact sealings, e.g. of labyrinth type
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- Subclass:
- NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
1 direct subcode
Child Classifications
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- F01D 11/04 using sealing fluid, e.g. steam