Fluid pressure control valve for vehicle braking system

Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors

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303 968, B60T 800, B60T 1300

Patent

active

047610417

ABSTRACT:
A fluid pressure control valve incorporated with dual hydraulic braking circuits connecting a tandem master cylinder to the left and right rear-wheel brake cylinders in a vehicle braking system. The control valve includes a pair of proportioning valves respectively disposed within the hydraulic braking circuits for modulating the hydraulic pressure applied to the rear-wheel brake cylinders, a pair of control plungers axially movable in response to fluid pressure in a hydraulic chamber to vary the spring load each acting on the proportioning valves, and a single inertia-controlled valve provided within an inlet pressure chamber of the control valve to interrupt the flow of fluid from one of the hydraulic braking circuits into the hydraulic chamber when a deceleration in excess of a predetermined value is attained.

REFERENCES:
patent: 4141596 (1979-02-01), Takeshita et al.
patent: 4411476 (1983-10-01), Koshimizu
patent: 4421362 (1983-12-01), Shirai
patent: 4444436 (1984-04-01), Koshimizu

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