Anti-brake-vibration type proportioning valve

Details Anti-brake-vibration type proportioning valve Anti-brake-vibration type proportioning valve

1978-08-24

1980-05-20

Reger, Duane A.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

B60T 826

Patent

active

042036283

ABSTRACT:
A proportioning valve for a hydraulic brake system having a capability of preventing brake vibration. In this proportioning valve a piston, which is exposed at one end thereof to an air chamber and constantly biased with a spring in a separating direction away from the air chamber, opens and closes a cut valve disposed in a braking fluid circuit from the master cylinder to the rear wheel cylinder(s) for performing fluid pressure regulating operation. The piston is further designed such that the stroke thereof is larger than it ought to be for the proper object, with the purpose of operating as a piston for absorbing fluid pressure vibration in the rear wheel cylinder(s) while the braking fluid pressure is relatively low, and as an ordinary fluid pressure regulating piston after the braking fluid pressure exceeds a predetermined set value.

REFERENCES:
patent: 3976334 (1976-08-01), Farr
patent: 4062597 (1977-12-01), Sawyer et al.

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