Auxilliary drive apparatus

Details Auxilliary drive apparatus Auxilliary drive apparatus

1995-09-26

1997-02-11

Nguyen, Hoang

Power plants

Pressure fluid source and motor

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

60428, 60484, F16D 3102

Patent

active

056009526

ABSTRACT:
An auxiliary drive apparatus which comprises an engine, a first hydraulic pump driven by the engine, a second hydraulic pump driven by the engine and integrally connected to the first hydraulic pump, a third hydraulic pump driven by the engine and integrally connected to the second hydraulic pump, a first pressure limiting valve connected in parallel to the first hydraulic pump, a first vacuum breaking valve connected in parallel to the first hydraulic pump, a first hydraulic motor connected in series to the first hydraulic pump, a second pressure limiting valve connected in parallel to the second hydraulic pump, a second vacuum breaking valve connected in parallel to the second hydraulic pump, a second hydraulic motor connected in series to the second hydraulic pump, a third pressure limiting valve connected in parallel to the third hydraulic pump, a third vacuum breaking valve connected in parallel to the third hydraulic pump, and a third hydraulic motor connected in series to the third hydraulic pump.

REFERENCES:
patent: 3499286 (1970-03-01), Reischl
patent: 3910044 (1975-10-01), Symmank
patent: 4405287 (1983-09-01), Kuchenbecker et al.
patent: 4516467 (1985-05-01), Keeney et al.
patent: 4953584 (1990-09-01), Vegso
patent: 5163465 (1992-11-01), King, Sr.
patent: 5386873 (1995-02-01), Harden, III et al.

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