Danfoss A/s

Danfoss Power Solutions Co., Ltd.

Yanjiang Wan

Chris Shrive

Xiaoyuan Chen

A hydrostatic radial piston unit of the cam-lobe type of construction including a non-rotary, stationary casing. The stationary casing includes a through hole defining a rotational axis of the hydrostatic radial piston unit. A rotary casing is mounted rotary to the non-rotary, stationary casing in an axial overlapping area. A park brake mechanism includes at least two brake discs arranged adjoined in the overlapping area. An end cover closes the non-rotary casing on a rear end side of the hydrostatic radial piston unit facing away from the rotary casing. The end cover pre-tensions a disc spring against a disc-shaped brake piston both located in the rear end portion of the stationary casing to generate an axially oriented spring force. The force can be forwarded by the brake piston to at least one brake pin arranged in an axially oriented bore in the stationary casing, in order to press the brake discs against each other when the brake piston on the face opposite to the disc spring is not forced to move towards the end cover.

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Zhenjiang, China

Yanjiang Wan