Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1991-05-14
1993-06-01
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031162, 3031191, B60T 832, B60T 848
Patent
active
052153592
ABSTRACT:
A hydraulic anti-locking brake unit is presented in which the brake line is shut off by an isolating valve (20) during a control action. For the reduction of the pressure, the outlet valve (7) is opened, so that the pump (14) delivers hydraulic fluid out of the wheel brake into the high-pressure accumulator (19). For a renewed pressure build up, the inlet valve (6) is opened, so that hydraulic fluid flow is directed out of the high-pressure accumulator (19) back to the wheel brake. In order to be able to utilize a high-pressure accumulator having a low receiving capacity, various valving arrangements are disclosed to direct excess flow from the pump either to the master cylinder or a low pressure accumulator.
REFERENCES:
patent: 3532391 (1970-10-01), Klein
patent: 4618189 (1986-10-01), Nakanishi et al.
patent: 4703979 (1987-11-01), Nakanishi et al.
patent: 4730879 (1988-03-01), Adachi et al.
patent: 4964681 (1990-10-01), Burgdorf et al.
patent: 5013095 (1991-05-01), Reinecke
patent: 5039175 (1991-08-01), Holzmann et al.
Burgdorf Jochen
Dinkel Dieter
Maas Joachim
Reinartz Hans-Dieter
Steffes Helmut
Alfred Teves GmbH
Butler Douglas C.
Lewis J. Gordon
Seitter Robert P.
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