Hydraulic brake booster

Details Hydraulic brake booster Hydraulic brake booster

1977-12-06

1980-04-08

Hershkovitz, Abraham

Power plants

Pressure fluid source and motor

Pulsator

60547A, 91 31, B60T 1300

Patent

active

041965922

ABSTRACT:
A hydraulic brake booster of the type utilizing pressurized fluid supplied to a hydraulically operated device comprises a flow regulating valve adapted to rapidly increase the pressure in a power chamber of the booster in response to actuation of a control piston and another flow regulating valve adapted to ensure supply of the pressurized fluid to the hydraulically operated device. In the brake booster, the first-named valve includes an annular recess formed on the control piston for permitting the flow of fluid supplied to the power chamber when the control piston is in an original position and blocking the flow of fluid to the power chamber when the control piston is moved, and an orifice for throttling the flow of fluid supplied to the power chamber in response to movement of the control piston.

REFERENCES:
patent: 3782781 (1974-01-01), Lewis
patent: 3898809 (1975-08-01), Baker
patent: 3998128 (1976-12-01), Adachi
patent: 4014171 (1977-03-01), Kobashi
patent: 4023466 (1977-05-01), Strassheimer
patent: 4075848 (1978-02-01), Ueda

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