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US 4,360,238 AGranted
Control valve assembly
AssigneeGirling Limited
InventorGlyn P. R. Farr
Life of this patent
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AssigneeGirling Limited
InventorGlyn P. R. Farr
Estimating the term…
A fluid pressure braking system is disclosed which includes an hydraulic actuator connected to a vehicle brake and a pressure actuator for operating the hydraulic actuator and which is connected to a fluid pressure reservoir via a brake control valve. An auxiliary valve having an inlet connected to a fluid pressure source, which may be the reservoir, is responsive to a deceleration responsive inertia device which, when deceleration exceeds a predetermined value operates the valve to connect pressure from the source to a pressure operable member which operates on the actuators in opposition to the pressure at the inlet of the pressure actuator thereby effecting a pressure reduction at the outlet of the hydraulic actuator in dependence on deceleration. The auxiliary valve includes a metering feature whereby when it is opened, outlet pressure operates against a pressure area of the valve to effect metering of pressure to the pressure operable member.
A vehicle braking system including at least one pressure actuator having opposed first and second chambers and a fluid connection between said chambers, a diaphragm separating the first chamber from the second chamber and movable by a pressure differential between said first and second chambers, means connecting the diaphragm to a hydraulic actuator so that movement of the diaphragm operates the hydraulic actuator to pressurize a hydraulic brake circuit connected thereto, driver controlled means for selectively supplying a pressurized operating fluid to said first chamber, and deceleration responsive control valve means in the fluid connection between said chambers;
A vehicle braking system comprising:
Dependencies are inferred from the claim text.