IPC Subgroup
F04B 1/2021 characterised by the contact area between cylinder barrel and valve plate
Introduced: January 2020
Full Title
Multi-cylinder machines or pumps characterised by number or arrangement of cylinders > having cylinder axes coaxial with, or parallel or inclined to, main shaft axis > having rotary cylinder block > Details or component parts > characterised by the contact area between cylinder barrel and valve plate
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- Subclass:
- POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
1 direct subcode
Child Classifications
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- F04B 1/2028 Bearings