Antiskid control valve
AssigneeGirling Limited
InventorJurgen Dufft
Life of this patent
Estimating the term…
Abstract
A pendulum responsive to excessive deceleration operates a valve which creates a pressure differential across a pressure responsive member to close an inlet valve to the brake chamber and expand an outlet chamber to thereby reduce the rear brake pressure. The invention provides retaining mechanism for preventing the pendulum from swinging during non-braking periods and for returning the pendulum to its inoperative position upon a reduction of inlet pressure. A piston responsive to pressure at the inlet moves the retaining mechanism to a position wherein the inertia member is free to swing during normal brake applications.
Claims8
A control valve assembly for a vehicle braking system, comprising an inlet an outlet, a proportioning valve controlling communication between said inlet and said outlet, said proportioning valve having a control valve member movable to open and close said valve, inertia-responsive means responsive to deceleration of the vehicle for reducing the pressure at said outlet after said valve has closed, said inertia-responsive means comprising an inertia-responsive member which is movable to apply a load to said control valve member, and fluid pressure operable retaining means which prevents movement of said inertia-responsive means from an inoperative position, in the absense of pressure at said inlet.
Dependencies are inferred from the claim text.