Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1996-08-20
1998-08-04
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
188352, 303900, 303901, B60T 836
Patent
active
057883440
ABSTRACT:
The invention relates to a hydraulic unit for a vehicle brake system with ABS. Before being filled with brake fluid, the brake system must be evacuated in order to achieve complete bleeding. In order to evacuate a return line, which is separated from a brake line by pressure reduction magnet valves that are closed in their position of repose, it is known to provide a connecting line with a check valve between the brake line and the return line. The hydraulic unit connects the check valves in parallel to the magnet valves and integrates the check valves with the magnet valves. This simplifies assembly. Since no additional holes and conduits in the hydraulic unit are necessary, existing hydraulic units can be used.
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Friedow Michael
Kroebel Heidi
Lander Juergen
Butler Douglas C.
Greigg Edwin E.
Greigg Ronald E.
Robert & Bosch GmbH
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