Anti-lock braking system check valve with build orifice

Details Anti-lock braking system check valve with build orifice Anti-lock braking system check valve with build orifice

1987-05-18

1988-12-27

Kashnikow, Andres

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303 841, B60T 1546, B60T 842

Patent

active

047942673

ABSTRACT:
A valve assembly for use in an anti-lock braking system has a housing with a bore having a first inlet connected to a master cylinder and an outlet connected to a pressure responsive anti-lock braking system modulator valve. The bore has a second inlet connected to a source of pressurized brake fluid and a passage which connects the second inlet to the outlet passage. A check valve provided in the passage to prevent fluid flow from the first inlet passage to the second inlet. A valve responsive to a differential pressure between the pressurized source and the master cylinder inlet is provided for closing the first inlet while opening the second inlet to allow the source of pressurized brake fluid to be supplied to the modulator valve.

REFERENCES:
patent: 3506312 (1970-04-01), Siddall
patent: 3608984 (1971-09-01), Skoyles
patent: 3726568 (1973-04-01), Krugler, Jr.
patent: 3969001 (1976-07-01), Nakamura et al.
patent: 4457563 (1984-07-01), Farr

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