with two or more serially arranged radial piston-cylinder units

Introduced: January 2020

Full Title

Full titles differ between systems:

IPC:

Multi-cylinder machines or pumps characterised by number or arrangement of cylinders > having cylinders in star- or fan-arrangement > the cylinders being movable, e.g. rotary > with actuating or actuated elements at the outer ends of the cylinders > with rotary cylinder blocks > with two or more serially arranged radial piston-cylinder units

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 cylinders in star- or fan-arrangement > the cylinders being movable, e.g. rotary > with actuating or actuated elements at the outer ends of the cylinders > with rotary cylinder blocks > with two or more serially arranged radial piston-cylinder units

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2020.

Child Classifications

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F04B 1/1075 with cylinder blocks and actuating cams rotating together (in two or more series radial piston-cylinder units directly located side-by-side F04B1/1078) since 2020 IPC+CPC Available in IPC and CPC
F04B 1/1077 located side-by-side since 2020 IPC+CPC Available in IPC and CPC