Hydraulic circuit for a hydraulically driven vehicle

Details Hydraulic circuit for a hydraulically driven vehicle Hydraulic circuit for a hydraulically driven vehicle

1980-02-19

1982-04-13

Cohen, Irwin C.

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

60456, 60464, 180 648, B62D 1104, F16H 3946

Patent

active

043240984

ABSTRACT:
A hydraulic circuit for a hydraulically driven vehicle comprising a pair of variable displacement pumps each driven by a common engine, a pair of variable displacement motors each connected with the respective variable displacement pumps in a closed loop circuit and driven thereby, a fixed displacement charge pump driven by the engine, and a pair of shuttle valves each connected in parallel with the respective closed loop circuits and has formed therein a neutral position and two offset positions wherein in the neutral positions of the shuttle valves both the closed loop circuits are connected with each other through the shuttle valves.

REFERENCES:
patent: 3247919 (1966-04-01), Moon, Jr.
patent: 3659419 (1972-05-01), Ikeda
patent: 3896617 (1975-07-01), Kraina
patent: 3982469 (1976-09-01), Bianchetta
patent: 4023363 (1977-05-01), Liebert
patent: 4024796 (1977-05-01), Thedbald

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