Fluid distribution valve for a motor vehicle braking system

Details Fluid distribution valve for a motor vehicle braking system Fluid distribution valve for a motor vehicle braking system

1976-10-14

1978-03-14

Blix, Trygve M.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303 84A, B60T 802

Patent

active

040788466

ABSTRACT:
A fluid operated braking system for a motor vehicle, having a main braking circuit for applying braking pressure to the actuators of both wheels of at least one axle of the vehicle and a subsidiary braking circuit for applying a reduced braking pressure to one of the wheels of the axle if it should enter a skid or incipient skid state, in which the subsidiary braking circuit is controlled by two distributors each of which has three ports, one connected to the main braking circuit, one connected to the subsidiary braking circuit, and one connected to the brake actuator of an associated wheel of the axle, the distributor being controlled by an electrovalve to connect the main braking pressure circuit to the brake actuator of the associated wheel of the axle under normal condition and to connect the subsidiary braking circuit, through an internal path within the distributor to the brake actuator of one wheel of the axle when this wheel enters a skid or incipient skid state, without affecting the distributor associated with the other wheel of the axle. This internal path in the distributor includes elements which produce a varying resistance to the passage of fluid thereby permitting a gradually increasing brake pressure to be applied to the skidding wheel.

REFERENCES:
patent: 3529871 (1970-09-01), Burckhardt et al.
patent: 3532391 (1970-10-01), Klein
patent: 3843211 (1974-10-01), Ingram et al.
patent: 3891278 (1975-06-01), Grosseau
patent: 3920282 (1975-11-01), DeVlieg

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