Hydrostatic drive system

Details Hydrostatic drive system Hydrostatic drive system

2006-11-02

2009-10-13

Lazo, Thomas E (Department: 3745)

Power plants

Pressure fluid source and motor

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

C060S459000

Reexamination Certificate

active

07600377

ABSTRACT:
A hydrostatic drive system has a pump (1) and at least one consumer (5) controlled by a control valve (4) that can be actuated by control signals. A precharge device (10) that generates a precharge pressure is located in a reservoir line (7) that leads from the control valve (4) to a reservoir (2). The precharge device can be pressurized as a function of the control signals of the control valve (4). To make possible a recharge during the deceleration of a consumer, the precharge device (10) can be pressurized in the direction of an elevation of the precharge pressure when there is a decreasing control signal of the control valve (4).

REFERENCES:
patent: 4694647 (1987-09-01), Yoshida
patent: 6199442 (2001-03-01), Bauer et al.
patent: 197 09 958 (1998-09-01), None
patent: 19709958 (1998-09-01), None
patent: 102006040459 (2007-03-01), None

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