Hydrostatic drive system

Details Hydrostatic drive system Hydrostatic drive system

1993-05-19

1994-11-08

Look, Edward K.

Power plants

Pressure fluid source and motor

Condition responsive control of motive fluid flow

60466, 60468, 60493, 91461, F16D 3102

Patent

active

053615840

ABSTRACT:
A hydrostatic drive system including a pump and a hydraulic motor in an open circuit which includes a feed line and a control valve in the feed line on the inflow side of the hydraulic motor to control the quantity of hydraulic pressure medium supplied to the hydraulic motor. A brake valve is located in the open circuit on the outflow side of the hydraulic motor to receive hydraulic pressure medium flowing out of the hydraulic motor. The control valve and the brake valve are constructed for independent actuation so that the functions of the control valve and the brake valve can be reversed when the direction of rotation of the hydraulic motor is reversed and the actuating pressure on the brake valve in the braking phase depends on the inflow pressure to the hydraulic motor independently of the actuating pressure on the control valve.

REFERENCES:
patent: 4362018 (1982-12-01), Torii
patent: 4644849 (1987-02-01), Tanaka
patent: 5063742 (1991-11-01), Yoshimatsu
patent: 5101630 (1992-04-01), Wagenseil

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