Motors: expansible chamber type – Cyclically operable – Working member controlled motive fluid for distributor motor
Patent
1976-07-07
1979-05-08
Cohen, Irwin C.
Motors: expansible chamber type
Cyclically operable
Working member controlled motive fluid for distributor motor
91404, 91436, 91449, F01L 2504, F15B 1304
Patent
active
041529707
ABSTRACT:
A fluid pressure supply apparatus includes a fluid pressure source, a fluid supply circuit to receive fluid under pressure from the fluid pressure source, and a fluid return circuit. These circuits are to be coupled to an hydraulic motor through first and second fluid paths. The supply apparatus further includes first means to couple the fluid supply circuit to the first fluid path to cause the hydraulic motor to be operated by the fluid pressure in a predetermined sense, and second means simultaneously to couple the second fluid path either to the fluid supply circuit, to provide a regenerative coupling for the motor, or to a fluid return path. This latter coupling is initially to the second fluid path, the second means being arranged to transfer that coupling from the fluid supply circuit to the fluid return path during operation of the motor in the predetermined sense.
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patent: 3795177 (1974-03-01), Cryder
Hall Patrick
Walker Peter F.
Cohen Irwin C.
Smiths Industries Limited
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