Hydraulic anti-skid braking systems for vehicles

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

1986-08-28

1988-10-11

Kashnikow, Andres

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303116, 188181A, B60T 842, B60T 840

Patent

active

047766476

ABSTRACT:
In an anti-skid hydraulic braking system of the pump/re-apply type fluid is dumping from a working chamber into an auxiliary reservoir between a springloaded piston and the dump valve in response to a skid signal. When the dump valve closes the pump first withdraws fluid from the auxiliary reservoir in an unrestricted manner to re-apply the brake in a first stage up to a knee point at which a valve defined by the engagement of a head on the piston with a seating isolates the pump directly from the auxiliary reservoir. Thereafter the pump draws fluid from a main reservoir but at a reduced rate through a restricted orifice in the piston.

REFERENCES:
patent: 3574416 (1971-04-01), Skoyles
patent: 4474413 (1984-10-01), Farr
patent: 4556260 (1985-12-01), Maehurd

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