Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1978-09-11
1980-08-19
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 22R, 303116, B60T 802
Patent
active
042181003
ABSTRACT:
A hydraulic vehicle braking system including an operator-controlled fluid pressure source connected to the actuator of a vehicle wheel brake. An antiskid valve is interposed between the operator-controlled pressure source and the brake actuator and is responsive to wheel skidding to interrupt the fluid connection until the end of the braking phase and to permit a fluid connection between the brake actuator and a low pressure fluid reservoir in response to subsequent wheel skidding. The system includes a second source of pressurized fluid and a device for replenishing the brake actuator having a pressure responsive valve which opens fluid flow connection between the second fluid pressure source and the brake actuator when the pressure difference between the operator-controlled pressure source and the brake actuator exceeds a predetermined value.
REFERENCES:
patent: 3532391 (1970-10-01), Klein
patent: 3639009 (1972-02-01), Klein et al.
Butler Douglas C.
Decker Ken C.
Schoenle Paul David
Societe Anonyme D.B.A.
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