Three position solenoid controlled valve

Details Three position solenoid controlled valve Three position solenoid controlled valve

1994-09-14

1997-03-11

Ballato, Josie

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

13759617, 1376275, 3031171, B60T 800

Patent

active

056094000

ABSTRACT:
A three position solenoid controlled valve comprising: a housing having first, second and third ports; first and second valve bodies for bringing the first and second ports into and out of communication with each other and the second and third ports into and out of communication with each other, respectively; first and second urging members for urging the first and second valve bodies in a valve opening direction and a valve closing direction, respectively; an electromagnetic urging device and a movable member which is displaced by the electromagnetic urging device so as to close and open the first and second valve bodies against urging forces of the first and second urging members, respectively such that the first valve body brings the first and second ports out of communication with each other through relative displacement between the housing and the first valve body.

REFERENCES:
patent: 3628571 (1971-12-01), Ostwald et al.
patent: 3921666 (1975-11-01), Leiber
patent: 4304258 (1981-12-01), Mitchell
patent: 5218996 (1993-06-01), Schmitt-Matzon
patent: 5248191 (1993-09-01), Kondo et al.

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