Brake proportioning valve

Details Brake proportioning valve Brake proportioning valve

1995-06-02

1996-06-04

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

188349, 3031132, 303 962, 303 975, B60T 826, B60T 832

Patent

active

055226515

ABSTRACT:
A brake proportioning valve displaying low restriction to fluid flow and short fluid shear path is suitable for use in vehicular traction control systems and capable of supplying a high volume of fluid to the traction control system high pressure pump under atmospheric pressure. The proportioning valve employs a plunger of two diameters against which hydraulic pressure operates, and a plunger-located check ball held off its seat under low outlet pressure conditions by a control member. The brake proportioning valve provides proportioning of brake fluid pressure to the vehicle non-proportioned brakes relative to the vehicle proportioned brakes during both brake apply and brake release.

REFERENCES:
patent: 3311422 (1967-03-01), Oberthur
patent: 3354638 (1967-11-01), Kersting
patent: 3680922 (1972-08-01), Kawai
patent: 3695730 (1972-10-01), Ayers, Jr.
patent: 4008925 (1977-02-01), Young
patent: 4664451 (1987-05-01), Sakaguchi et al.
patent: 4828335 (1989-05-01), Fuller et al.
patent: 4982999 (1991-01-01), Rossigno et al.
patent: 5320423 (1994-06-01), Hashida

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