Self-powered rotating-cylinder type linear actuator utilizing ro

Details Self-powered rotating-cylinder type linear actuator utilizing ro Self-powered rotating-cylinder type linear actuator utilizing ro

1985-12-23

1988-06-28

Look, Edward K.

Power plants

Pressure fluid source and motor

Pump means moves motive fluid from one chamber to an...

60476, 91416, 188295, 188313, 92 55, 92110, 92136, F15B 1518

Patent

active

047530715

ABSTRACT:
Conventional piston-cylinder hydraulic actuators require external pressure sources. The hydraulic actuator disclosed utilizes the centrifugal head developed in its chambers. The piston (36) is attached to shaft extension (24) which is splined to the actuator cylinder (20). The cylinder (20) rotates with the shaft (16) to develop a centrifugal fluid head which is selectively directed from the outlet port (40a, 40b) of a contracting chamber through a servo valve (46) to the return passageway (46b, 46a) of an expanding chamber to axially displace piston (36) and shaft (16). An accumulator in the fluid circuit retains fluid displaced from the cylinder (20).

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