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IPC Main Group
F01D 3/00

Machines or engines with axial-thrust balancing effected by working fluid

Introduced: September 1968

Last revised: January 2006

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

2 direct subcodes

Child Classifications

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  • F01D 3/02 characterised by having one fluid flow in one axial direction and another fluid flow in the opposite direction
  • F01D 3/04 axial thrust being compensated by thrust-balancing dummy piston or the like