Brakes – Operators – Fluid pressure
Patent
1984-10-09
1986-05-06
Butler, Douglas C.
Brakes
Operators
Fluid pressure
60550, 605471, 91519, 1376275, 13763016, 13763017, 188345, 303 84R, 303 92, 303114, 303119, B60T 800, B60T 1120, B60T 1314, F15B 708
Patent
active
045865914
ABSTRACT:
A pressure-fluid-operable vehicle brake system is proposed, which is fed by an auxiliary energy supply system (3) and which comprises a master cylinder device (1), in which a booster piston (40) adapted to be acted upon by the auxiliary energy is slidable in a pressure fluid chamber (26). When the auxiliary energy supply system (3) is intact, the booster piston (40) comprises an effective area for the pressurization of a wheel brake cylinder which is larger than an effective area which results upon failure of the auxiliary energy supply system. Upon failure of the auxiliary energy supply system (3), the necessary deacceleration is achieved because of a smaller effective area at the booster piston (40) and at a greater displacement travel of the booster piston (40) and with less pedal force (F).
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patent: 4159755 (1979-07-01), Kang et al.
patent: 4205784 (1980-06-01), Monigold
patent: 4523791 (1985-06-01), Belart et al.
Butler Douglas C.
IT&T Industries, Inc.
Michals William J.
Raden James B.
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