Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1995-12-29
1997-06-24
Young, Lee W.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031131, B60T 836
Patent
active
056412100
ABSTRACT:
A brake pressure control apparatus for automobiles with an anti-lock braking system, which can be easily operated with a simple construction, and in which a rotary valve can be immediately returned to its initial position after the first ABS operation has finished in order to prepare for the second ABS operation, is disclosed. The apparatus has a housing connected to a hydraulic pump to receive the pressure fluid, a motor mounted on the upper surface of the housing to generate a rotational force, a bushing for guiding the pressure fluid from the housing, a rotary valve rotatably accommodated in the bushing to transfer the pressure fluid which has guided through the bushing to a wheel cylinder or a fluid tank, and a sensor assembly which senses an electric signal varied according to the rotation of the rotary valve and then sends the electric signal to an electrical control unit. The apparatus can be manufactured with reduced cost, and can be easily applied to the ABS.
REFERENCES:
patent: 3752268 (1973-08-01), Gfeller
patent: 3905653 (1975-09-01), Muller et al.
patent: 4082369 (1978-04-01), Black et al.
patent: 4166656 (1979-09-01), Depas, Sr.
patent: 5511861 (1996-04-01), Liu
Daewoo Electronics Co. Ltd.
Young Lee W.
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