Rotary actuator such as a rotary actuator for a motor vehicle su

Details Rotary actuator such as a rotary actuator for a motor vehicle su Rotary actuator such as a rotary actuator for a motor vehicle su

1994-10-28

1997-05-27

Culbreth, Eric D.

Land vehicles

Wheeled

Running gear

267277, 277 27, 280723, B60G 2100

Patent

active

056325029

ABSTRACT:
A rotary actuator having a cylinder and a motor shaft as well as end caps which define a working area, a number of ribs on the inside surface of the cylinder and an equal number of vanes on the motor shaft which divide the working area into work chambers, and seals inside grooves in the ribs and the vanes. The work chambers are alternately supplied with hydraulic medium, and the seals hydraulically separate the working chambers from one another. The seals are in the form of one-piece gasket members and there is a space between the seals and the side walls of the groove in the static rest position. The gasket member, via its end surfaces, its surfaces which define the height of the gasket member, and one side wall, perform a sealing function during operation of the rotary actuator.

REFERENCES:
patent: 4729569 (1988-03-01), Muller et al.
patent: 5188375 (1993-02-01), Pope et al.

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