Liquid pressure booster

Details Liquid pressure booster Liquid pressure booster

1991-12-31

1993-01-05

Look, Edward K.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

605471, 60593, F15B 910

Patent

active

051760649

ABSTRACT:
An improvement of a liquid pressure booster provided with a reaction piston is disclosed. A guide formed on a housing (plug) is caused to project into a tubular section of a power piston. A reaction piston is slidably supported by the guide, and an input shaft is slidably supported by the reaction piston. A spring which urges the reaction piston is disposed in a clearance defined between the outer periphery of the guide and the inner periphery of the tubular section of the power piston. In this manner, the guide, a sliding portion of the reaction piston, a sliding portion of the input shaft and the spring can be disposed radially of each other while overlapping each other in the axial direction to minimize the axial size of the liquid pressure booster.

REFERENCES:
patent: 3845693 (1974-11-01), Meyers
patent: 4075848 (1978-02-01), Ueda
patent: 4203631 (1980-05-01), Rivetti et al.
patent: 4624107 (1986-11-01), Horiuchi et al.
patent: 4656923 (1987-04-01), Tsuyuki et al.
patent: 4706546 (1987-11-01), Inoue et al.
patent: 4773223 (1988-09-01), Mizusawa et al.
patent: 4967560 (1990-11-01), Konishi
patent: 5010732 (1991-04-01), Yagi
patent: 5076141 (1991-12-01), Konishi

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