Dual motor hydrostatic drive system

Details Dual motor hydrostatic drive system Dual motor hydrostatic drive system

1975-05-01

1976-04-06

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

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

60428, 60486, F15B 1309, F15B 1800

Patent

active

039480496

ABSTRACT:
A pair of hydraulic motors are operatively drivingly connected to a common rotatable member and are employed for transmitting power thereto from a pair of prime movers. A first hydraulic circuit communicates with one of the hydraulic motors and includes a pump driven by one of the prime movers while a second hydraulic circuit communicates with the other of the hydraulic motors and includes a fixed displacement pump and a variable displacement pump driven by the other prime mover. A device associated with the variable displacement pump is responsive to fluid pressures in the first and second hydraulic circuits for automatically varying the output displacement of the variable displacement pump so that a predetermined relationship is maintained between the fluid pressures in the first and second hydraulic circuit.

REFERENCES:
patent: 2465485 (1949-03-01), Robinson
patent: 3443379 (1969-05-01), Weisenbach
patent: 3576104 (1971-04-01), Kokaly et al.
patent: 3576106 (1971-04-01), Nowicki
patent: 3623320 (1971-11-01), Moore

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