Hydraulic anti-skid braking systems for vehicles

Details Hydraulic anti-skid braking systems for vehicles Hydraulic anti-skid braking systems for vehicles

1986-05-14

1987-12-29

Reger, Duane A.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303117, B60T 840

Patent

active

047156660

ABSTRACT:
In an anti-skid braking system a modulator for modulating the supply of hydraulic fluid from a master cylinder to a brake incorporates a flow-control regulator valve and an exhaust valve which is responsive to signals from a sensor. When the exhaust valve is closed the regulator valve is in a first position to permit unrestricted direct flow through it and when the exhaust valve is open a variable orifice in the regulator valve provides a restricted flow through it. The exhaust valve and the valve are only connected hydraulically and a conventional inlet valve normally operated directly by the sensor is omitted. The construction is therefore simplified since relative position tolerances are otherwise eliminated.

REFERENCES:
patent: 4428624 (1984-01-01), Farr
patent: 4474413 (1984-10-01), Farr

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