Hydraulic booster with accumulator control

Details Hydraulic booster with accumulator control Hydraulic booster with accumulator control

1979-02-22

1980-10-28

Maslousky, Paul E.

Motors: expansible chamber type

Fluid supply through diverse paths to single expansible chamber

91 5, 91 49, 91431, F01B 2502, F15B 2000

Patent

active

042300185

ABSTRACT:
A hydraulic power brake system in which a hydraulic power brake booster has an accumulator operable when there is insufficient power to operate the power brake with hydraulic pressure. The accumulator control valve is actuated by a cylindrical cam normally radially displaced so that its axis is not coincident with the axis of the booster. Sufficient actuating movement of the control portions of the booster cause the cam to move axially and radially so that its axis moves in a direction to be coincident with the axis of the booster, causing the accumulator control valve to be opened in a controlled manner and admit accumulator pressure to the booster power chamber.

REFERENCES:
patent: 3353451 (1967-11-01), Garrison et al.
patent: 3638528 (1972-02-01), Lewis
patent: 4135435 (1979-01-01), Adachi

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