F04C 14/18 characterised by varying the volume of the working chamber (by changing the positions of inlet or outlet openings F04C14/10)
Introduced: January 2006
Title
Titles differ between systems:
IPC: characterised by varying the volume of the working chamber
CPC: characterised by varying the volume of the working chamber (by changing the positions of inlet or outlet openings F04C14/10)
Full Title
Full titles differ between systems:
Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations > characterised by varying the volume of the working chamber
Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations (of pumps or pumping installations specially adapted for elastic fluids F04C28/00) > characterised by varying the volume of the working chamber (by changing the positions of inlet or outlet openings F04C14/10)
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 2006.
Child Classifications
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- F04C 14/20 by changing the form of the inner or outer contour of the working chamber since 2006 IPC+CPC Available in IPC and CPC
- F04C 14/22 by changing the eccentricity between cooperating members since 2006 +1 CPC IPC+CPC Available in IPC and CPC