Fluid-pressure and analogous brake systems – Pipeless valves
Patent
1990-11-13
1992-12-01
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Pipeless valves
188349, 303 963, 303 975, 303 14, 3031161, 3031192, 3031134, 3031135, B60T 826, B60T 832
Patent
active
051674416
ABSTRACT:
An anti-locking brake system for automotive vehicles, comprising a tandem master cylinder (1), a device (3, 4) for modulating the pressure supplied to the wheel brakes, an anti-locking control device (2) including a pressure reducing valve (10) located in the rear-axle brake circuit (7). The pressure reducing valve can be activated only in the event of failure of the anti-locking device. To attain a particularly simple and compact design of the re-switchable brakes force distributor (10, 110), an electromagnetic drive (21, 25, 121, 125) is provided and includes an actuating element (20, 120) through which pressure is directly applicable to the valve closing member (16, 116) of the pressure reducing valve (14, 15, 16, 114, 115, 116). To ensure the pressure reducing function even in the event of a failure of the anti-locking device during a brake actuation, an additional arrangement (134, 135, 136) for the volume expansion is provided.
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Birkenbach Alfred
Cezanne Rudolf
Heuer Rudolphy
Schonlau Juergen
Alfred Teves GmbH
Butler Douglas C.
Lewis J. Gordon
Seitter Robert P.
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