Hydraulic brake system for vehicle

Details Hydraulic brake system for vehicle Hydraulic brake system for vehicle

1986-02-20

1988-05-10

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Multiple systems

Fluid pressure and electric

60545, 188353, 188358, 192 133, 303 50, 303 89, 303100, 303114, B60T 1374

Patent

active

047430710

ABSTRACT:
In a hydraulic brake system for a vehicle of the kind comprising a fluid pressure source having a reservoir and a hydraulic booster having a power piston arranged to receive the pressure fluid of a control fluid chamber which is proportional to a stepping down force on a brake pedal, a normally open type valve is disposed in a fluid passage provided for returning the pressure fluid of the control fluid chamber to the reservoir and is arranged to close in response to a braking pressure retaining signal produced when the vehicle is stopped by brake application.

REFERENCES:
patent: 2108182 (1938-02-01), Searle
patent: 2186332 (1940-01-01), Freeman
patent: 2231004 (1941-02-01), Freeman
patent: 2272320 (1942-02-01), Freeman
patent: 2287562 (1942-06-01), Pennington
patent: 2313430 (1943-03-01), Goepfrich
patent: 2328684 (1943-09-01), Schnell
patent: 2701035 (1955-02-01), Leichsenring
patent: 2703637 (1955-03-01), Dodge
patent: 3298471 (1967-01-01), Evans
patent: 3425221 (1969-02-01), Canfield
patent: 3498426 (1970-03-01), Nakano
patent: 3617663 (1971-11-01), Whittemore
patent: 4579202 (1986-04-01), McIntosh

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