Power plants – Pressure fluid source and motor – Cyclically operable reciprocating or oscillating motor or...
Patent
1977-08-17
1978-09-05
Geoghegan, Edgar W.
Power plants
Pressure fluid source and motor
Cyclically operable reciprocating or oscillating motor or...
60415, 180 66R, F15B 1120
Patent
active
041109813
ABSTRACT:
An oil-operated motor driven from an air-pressurized oil supply tank. The motor has sets of opposing cylinders having oil admission valves and containing drive pistons connected to a crankshaft. The cylinders are connected to the pressurized supply tank through the admission valves and respective ones of a pair of compressed air-controlled pilot valves. The pilot valves are controlled by relay valves alternately opened by a rotating cam driven by the crankshaft. The pilot valves control the delivery of pressurized oil to cylinders arranged to be alternately supplied with pressurized oil, with their pistons acting to drive the crankshaft in a common direction by alternate power pulsations. A common compressed air supply is employed to pressurize the oil reservoir and to operate the pilot valves. The exhaust oil from the motor is returned to the oil reservoir by a hydraulic pump driven by the main oil-operated motor.
REFERENCES:
patent: 2915042 (1959-12-01), Shafer
patent: 3024809 (1962-03-01), Shafer
patent: 3507189 (1970-04-01), Beckett et al.
patent: 3765180 (1973-10-01), Brown
patent: 3779132 (1973-12-01), Otto
patent: 4018050 (1977-04-01), Murphy
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