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PCE
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DIFF Subgroup
F04B 1/32

by varying the relative positions of a swash plate and a cylinder block

Introduced: January 1995

Full Title

Full titles differ between systems:

IPC:

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 > Control > of machines or pumps with rotary cylinder blocks > by varying the relative positions of a swash plate and a cylinder block

CPC:

Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (machines or pumps with pistons coacting within one cylinder F04B3/00) > having cylinder axes coaxial with, or parallel or inclined to, main shaft axis > Control > of machines or pumps with rotary cylinder blocks > by varying the relative positions of a swash plate and a cylinder block

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 2020.

Child Classifications

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  • F04B 1/322 by moving the swash plate in a direction perpendicular to the axis of rotation of the cylinder barrel since 2020 IPC+CPC Available in IPC and CPC
  • F04B 1/328 by changing the inclination of the axis of the cylinder barrel relative to the swash plate since 2020 IPC+CPC Available in IPC and CPC