Hydrostatic vehicle driving system applicable to a working...

Details Hydrostatic vehicle driving system applicable to a working... Hydrostatic vehicle driving system applicable to a working...

2005-03-01

2005-03-01

Look, Edward K. (Department: 3745)

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

C060S490000

Reexamination Certificate

active

06860105

ABSTRACT:
A hydrostatic vehicle driving system structured from an engine to a drive axle in a working vehicle. A hydraulic pump driven by the engine and a variable displacement hydraulic motor for driving the drive axle are fluidly connected with each other through a hydraulic circuit. A motor capacity control system controls capacity of the hydraulic motor in correspondence to the condition of load on the engine. The motor capacity control system comprises load-detection means detecting hydraulic pressure in the hydraulic circuit replacing the load on the engine, a hydraulic actuator for changing the capacity of the hydraulic motor, and actuator-control means controlling the hydraulic actuator according to the detection of hydraulic pressure by the load-detection means.

REFERENCES:
patent: 4478041 (1984-10-01), Pollman
patent: 4546847 (1985-10-01), Abels
patent: 5335750 (1994-08-01), Geringer et al.
patent: 6151895 (2000-11-01), Matsura
patent: 6272854 (2001-08-01), Ishii et al.
patent: 6449949 (2002-09-01), Abend et al.
patent: 6715283 (2004-04-01), Abend et al.
patent: 6786042 (2004-09-01), Ishii

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