Fluid-pressure and analogous brake systems – Multiple systems – Fluid pressure and electric
Patent
1995-06-02
1996-08-27
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Multiple systems
Fluid pressure and electric
60420, 60422, 60484, 91459, 188358, 303 2, 303 10, 303 841, 303 15, 137100, 137505, 180405, 180410, 180415, F16D 3102
Patent
active
055493610
ABSTRACT:
A vehicular brake booster using fluid pressurized by a hydraulic power steering system hydraulic pump. Fluid pressure is controlled by using a pressure regulator in the pump output and by electronically switching fixed orifices in a boost developing valve controlling fluid flow within the power steering system. Additional control is effected by electronically opening and closing apply and relief valves controlling fluid flow respectively to and from a brake power booster for differing periods.
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Butler Douglas C.
Kelsey-Hayes Corporation
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