Vacuum motor for vehicle brake systems

Details Vacuum motor for vehicle brake systems Vacuum motor for vehicle brake systems

1990-07-24

1992-01-07

Graham, Matthew O.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

B60T 1368

Patent

active

050784579

ABSTRACT:
A vacuum motor having a first chamber and a second chamber that in the actuation direction is disposed following a dividing movable wall, a third chamber is provided preceding the first chamber. Upon the occurrence of a traction control situation, the third chamber is moved into a connection between a magnetic assembly which is connected to atmospheric pressure and the first chamber. The second chamber is at the same time connected to a negative pressure source. By way of a pressure drop between the first and second chambers, an adjusting force acting upon a multi-circuit master cylinder is generated for traction control.

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