Gas-oil drive for forward and reverse mechanical adjusting movem

Details Gas-oil drive for forward and reverse mechanical adjusting movem Gas-oil drive for forward and reverse mechanical adjusting movem

1977-11-01

1979-03-13

Rosenthal, Arnold

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 30, 60416, F16K 3142

Patent

active

041438515

ABSTRACT:
A gas-oil drive for forward and reverse mechanical adjusting movements. Gas, which is available for every direction of movement of an adjusting drive at a pressure greater than atmospheric pressure, conveys its pressure in a pressure tank to control oil which flows to an adjusting device for carrying out a control operation. For both oppositely directed adjusting movements of the gas-oil drive, a single pressure tank for delivering control oil under pressure to the respective corresponding position of the adjusting device, and a single unpressurized container for receiving expelled, unpressurized control oil are provided. The unpressurized container is located above the level of the pressure tank, and a bore on the unpressurized container is connected with a bore on the pressure tank by means of a control oil line in which is located a check valve which closes in a direction of flow toward the unpressurized container.

REFERENCES:
patent: 2290479 (1942-07-01), Mercier
patent: 2738945 (1956-03-01), Shafer

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