Liquid-operated booster

Details Liquid-operated booster Liquid-operated booster

1992-01-08

1992-12-08

Look, Edward K.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

605471, 60588, F15B 910

Patent

active

051687917

ABSTRACT:
There is disclosed a liquid-operated booster having a jump-up function, in which the production of an internal pressure in a reaction force chamber in accordance with a reduction of the volume of the reaction force chamber is prevented. To achieve this, a mechanism for relieving the reduction of the volume of the reaction force chamber due to a relative movement of a piston and an input member toward each other is provided at a position facing the reaction force chamber. Most preferably, this relieving mechanism is constituted by a movable small piston provided at the side of an operating input.

REFERENCES:
patent: 3106874 (1963-10-01), Schultz
patent: 3793829 (1974-02-01), Swanson
patent: 3878682 (1975-04-01), Takahashi et al.
patent: 3937127 (1976-02-01), Baker et al.
patent: 4514981 (1985-05-01), Brown et al.
patent: 4882976 (1989-11-01), Abbing et al.

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