Three-port fluid valve

Details Three-port fluid valve Three-port fluid valve

1988-07-15

1989-08-22

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

13759617, 25112921, 303 69, B60T 836, B60T 1368, B60T 1502

Patent

active

048590053

ABSTRACT:
A double solenoid valve especially for anti-lock braking (ABS) applications has a normally open conduit for connection to a first port fluidically in series with a normally closed conduit between second and third ports. A slow two-way path continuously connects the second port. The double valve when used in ABS can handle incipient locking, actual locking, quick releasing to normal after emergency anti-lock action, and purge modes.

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