Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1987-06-17
1989-01-17
Kashnikow, Andres
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303113, B60T 832
Patent
active
047984228
ABSTRACT:
In a brake system, two groups of wheel brakes (17, 18) and a brake valve (12) for controlling the initial pressure of a pump (24) are connected to the two brake lines (10, 15; 11, 16) of a tandem master cylinder (1). Through the brake valve (12), the flow of delivery of the pump (24), is restricted in response to the pressure in the brake conduits (10, 11), thereby generating, in a pressure conduit (26) in communication with the pump outlet, a pressure proportional to the master cylinder pressure and, through check valves (31, 32), being fed into the brake conduits (15, 16) leading to the wheel brakes (17, 18). The pump outlet (26), moreover, through a pressure conduit (33), is in communication with a reserve pressure chamber (34) separated through a piston (35) from the working chamber (6) of the tandem master cylinder (1). Upon failure of the pressure fluid supply through pump (24), the pressure fluid required for applying the brake can be displaced from the reserve pressure chamber (34) by applying the brake pedal (2).
REFERENCES:
patent: 4050748 (1977-09-01), Belart
patent: 4346944 (1982-08-01), Leiber
patent: 4354714 (1982-10-01), Belart
patent: 4395072 (1983-07-01), Belart
patent: 4421361 (1983-12-01), Arikawa et al.
patent: 4653814 (1987-03-01), Burgdorf
patent: 4708407 (1987-11-01), Maehara
Alfred Teves GmbH
Graham Matthew C.
Kashnikow Andres
Raden James B.
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