Pressure control device for a vehicle brake

Fluid-pressure and analogous brake systems – Inertia control

Patent

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Details

303 6C, B60T 826

Patent

active

042277477

ABSTRACT:
A pressure control device for a vehicle use for controlling the braking fluid pressure in a pair of mutually independent circuits, a first and a second, to deliver the braking force produced in a dual master cylinder, to each wheel cylinder respectively disposed on a pair of rear wheels. This device is provided with an inertia valve disposed in the first circuit, a shut-off valve disposed in the second circuit, and a balance piston which is affected on either end thereof the fluid pressure coming through the inertia valve in the first circuit and the fluid pressure coming through the shut-off valve in the second circuit. The balance piston and the shut-off valve are so combined as the former be operated by the difference of the fluid pressure acting on the both ends thereof to open and close the latter for equalizing the fluid pressure in the second circuit with that in the first circuit, which is under the control of the inertiidalve.

REFERENCES:
patent: 4085978 (1978-04-01), Nogami

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