Power plants – Pressure fluid source and motor – With control means for structure storing work driving energy
Patent
1976-03-30
1977-04-12
Geoghegan, Edgar W.
Power plants
Pressure fluid source and motor
With control means for structure storing work driving energy
60595, 91 4R, F15B 102
Patent
active
040167194
ABSTRACT:
An hydraulic power transmission circuit comprises a high-pressure section and a low-pressure section, which together include (a) an internal or external combustion free-piston engine to each of whose pistons is attached one piston pump, the pump piston and the engine piston being rigidly connected for the purpose of joint axial motion; (b) at least one rotary motor or linear actuator adapted to be driven by the hydraulic fluid pressurized by the said piston pumps; (c) valve means for directing the hydraulic fluid to and from the motors or actuators; (d) a charge pump; (e) accumulator means for balancing the fluctuations of pressure and quantity of the hydraulic fluid; and (f) means for controlling the operation of the free-piston engine, said means comprising a rotary auxiliary hydraulic motor of the positive displacement type in the low-pressure section of the circuit, which motor is provided with transmission means for driving a rotary distributor at a number of revolutions governed by the frequency of the free-piston engine.
REFERENCES:
patent: 2239893 (1941-04-01), Jackman
patent: 3073108 (1963-01-01), Ward
patent: 3100965 (1963-08-01), Blackburn
Geoghegan Edgar W.
Technion Research and Development Foundation Ltd.
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