Hydraulic power boost apparatus

Details Hydraulic power boost apparatus Hydraulic power boost apparatus

1980-07-29

1982-11-23

Maslousky, Paul E.

Power plants

Pressure fluid source and motor

Pulsator

60552, 60554, 91378, 91391R, F15B 910, F15B 1310

Patent

active

043598692

ABSTRACT:
A hydraulic power boost apparatus for use with the braking system of an automotive vehicle includes a power piston cooperating with a slide valve to define a plurality of spool valves to regulate the flow of a pressurized fluid therethrough to selectively apply the fluid to boost the force applied to the power piston. A resilient member is positioned within the power piston blind bore to modulate the force transmitted from the slide valve to the power piston. The power piston also includes an annular ridge for engaging a mating annular ridge of the slide valve to limit the travel of the slide valve to prevent the resilient member from being deformed beyond its elastic limit.

REFERENCES:
patent: 3132567 (1964-05-01), Ingres et al.
patent: 3133473 (1964-05-01), Garrison et al.
patent: 3691903 (1972-09-01), Shellhause
patent: 3782781 (1974-01-01), Lewis
patent: 3951043 (1976-04-01), Keady

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