Hydrostatic transmission mixed loop system

Details Hydrostatic transmission mixed loop system Hydrostatic transmission mixed loop system

1976-04-05

1977-01-11

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

With means purging, cleaning or separating undesirables from...

60456, 60464, 60465, 60466, 91420, F15B 1518, F15B 2104

Patent

active

040020282

ABSTRACT:
A mixed loop hydrostatic transmission circuit for use principally with orbit, gear, vane and other non-piston type motors, which generate contaminants making them less suitable for applications using conventional closed loop hydrostatic transmission circuits. The mixed loop hydrostatic transmission drive retains the precise load control and high efficiency of a closed loop system, while introducing the benefits of contamination control of open loop hydrostatic transmission circuits. While maintaining the speed of the motor proportional to the output flow of the pump, both in positive and regenerative modes of operation, the flow of fluid is diverted from the motor to an injector type inlet booster connected to the reservoir, which supplies the full flow of fluid, required by the pump.

REFERENCES:
patent: 2059155 (1936-10-01), Thoma
patent: 2961829 (1960-11-01), Weisenbach
patent: 3236049 (1966-02-01), Reinke
patent: 3866421 (1975-02-01), Kersten et al.
patent: 3866422 (1975-02-01), Kersten
patent: 3925987 (1975-12-01), Faisandier

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