Fluid pressure control device

Details Fluid pressure control device Fluid pressure control device

1994-05-26

1996-01-02

Ballato, Josie A.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

3031143, B60T 848, F15B 1100

Patent

active

054802237

ABSTRACT:
A fluid pressure control device comprising: an inlet valve which is provided in a supply path for connecting a fluid pressure apparatus and a fluid pressure source and is opened so as to increase fluid pressure of the fluid pressure apparatus; and an outlet valve which is provided in a discharge path for discharging working fluid from the fluid pressure apparatus and is opened so as to reduce the fluid pressure of the fluid pressure apparatus; wherein the inlet valve is formed by a solenoid selector valve effecting only a fully open operation and a fully closed operation; wherein the outlet valve is formed by a flow control valve in which one-to-one correspondence exists between quantity of drive current applied thereto and flow rate of the working fluid flowing therethrough.

REFERENCES:
patent: 4419642 (1983-12-01), Kramer et al.
patent: 4779935 (1988-10-01), Kuwana et al.
patent: 4812777 (1989-03-01), Shirai
patent: 4966248 (1990-10-01), Farr
patent: 5018797 (1991-05-01), Takata
patent: 5127435 (1992-07-01), Takata et al.
patent: 5181534 (1993-01-01), Hashida et al.
patent: 5261731 (1993-11-01), Yogo et al.
patent: 5375506 (1994-12-01), Hashida et al.
Bosche Technische Berichte, vol. 7 (1980), Notebook 2, ISSN 0006-789, "Antiblockiersystem (ABS)", Lieber et al.

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