Actuator assemblies for vehicle hydraulic braking systems

Details Actuator assemblies for vehicle hydraulic braking systems Actuator assemblies for vehicle hydraulic braking systems

1975-12-11

1976-12-07

Blix, Trygve M.

Fluid-pressure and analogous brake systems

Inertia control

251 30, B60T 800

Patent

active

039959139

ABSTRACT:
In a pneumatically-operable actuator assembly for a vehicle hydraulic braking system a control valve assembly comprises a first valve responsive to a signal of deceleration for controlling communication between an inlet passage for connection to a supply of air under pressure and a modulator chamber through a supply chamber, and a second valve downstream of the first valve for controlling communication between the modulator chamber and an exhaust passage and responsive to pressure in the supply chamber, the first valve being substantially smaller than the second valve whereby the pressure in the modulator chamber can be reduced rapidly in response to a relatively small reduction in the pressure in the supply chamber.

REFERENCES:
patent: 3694038 (1972-09-01), Ingram et al.
patent: 3746402 (1973-07-01), Hickner et al.
patent: 3830550 (1974-08-01), Kondo
patent: 3920279 (1975-11-01), Ihada et al.
patent: 3936095 (1976-02-01), Every

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