Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1989-03-02
1989-12-26
Reger, Duane A.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303113, B60T 842
Patent
active
048893951
ABSTRACT:
Disclosed is an anti-lock control apparatus for an air over hydraulic brake system having a first air pressure line leading from a brake valve to an air master cylinder as well as a second air pressure line branching from the first air pressure line and leading to a modulator. The second air pressure line is provided with an exhaust-side check value for exhausting air from a pneumatic chamber of the modulator and an air-supply side check valve for supplying air to the pneumatic chamber. The pneumatic chamber of the modulator and the second air pressure line are adapted to hold residual pressure, thereby increasing the rising gate of the braking hydraulic pressure during braking and the falling rate of the braking hydraulic pressure during release of braking, and reducing the amount of air consumed.
REFERENCES:
patent: 3754795 (1973-08-01), Von Lowis et al.
patent: 3963277 (1976-06-01), Chiba
Fujita Tomohiro
Kawano Ryuji
Akebono Brake Industry Co. Ltd.
Reger Duane A.
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