Automotive vehicle braking unit

Details Automotive vehicle braking unit Automotive vehicle braking unit

1989-05-15

1990-10-30

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303119, 303DIG4, 303 52, 60545, 605471, 188356, B60T 832

Patent

active

049664204

ABSTRACT:
An anti-locking automotive vehicle braking unit wherein to achieve a reduction of the costs of manufacture and of mounting with an increase of reliability in operation, a pneumatic device (39, 40) is provided for venting of the first power chamber (5) and/or evacuation of the second power chamber (6) of the vacuum brake power booster (1) in the event of a slip control action. This renders the boosting power of the vacuum brake power booster effective or ineffective in a direction opposed to the direction of actuation of the master brake cylinder (2).

REFERENCES:
patent: 3498682 (1970-03-01), Mueller et al.
patent: 3827762 (1974-08-01), Ives
patent: 4790608 (1988-12-01), Burgdorf et al.
patent: 4828337 (1989-05-01), Wagner et al.
patent: 4900101 (1990-02-01), Becker et al.

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