Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1976-05-04
1977-06-28
Reger, Duane A.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
188344, B60T 8087
Patent
active
040322009
ABSTRACT:
In an anti-skid hydraulic braking system for a vehicle a master cylinder supplying fluid under pressure to apply a brake includes an operating piston and a boost piston both working in a common bore with a boost chamber defined in the bore between adjacent ends of the piston. A boost control valve is provided between the pistons and is movable between a normally open inoperative position in which the boost chamber is in communication with return and outlet ports in the cylinder and an operative closed position when the master cylinder is operated in which the boost chamber is isolated from the return and outlet ports so that pressure in the boost chamber is increased to advance the boost piston in the bore to pressurize liquid in a pressure space.
REFERENCES:
patent: 3743363 (1973-07-01), Hodge et al.
Girling Limited
Reger Duane A.
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