Vacuum booster device

Details Vacuum booster device Vacuum booster device

1977-03-30

1979-08-14

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91369B, 251335R, F15B 910

Patent

active

041641680

ABSTRACT:
A vacuum booster device has a casing defining two chambers partitioned by a diaphragm, a valve body connected to the diaphragm, a plunger slidably and sealingly inserted in the valve body and connected to an input rod, two valve seats formed respectively on the valve body and the plunger, and a poppet valve for engaging and disengaging with the valve seats to connect or disconnect the two chambers and to connect one of the chambers to or disconnect it from the atmosphere. One end portion of the poppet valve is fitted and retained in the inner periphery of the valve body and has an annular projection on the outer periphery of the end portion for sealingly engaging with the valve body.

REFERENCES:
patent: 3385167 (1968-05-01), Wilson et al.
patent: 3824894 (1974-07-01), Nicholas
patent: 3826175 (1974-07-01), Thiel et al.

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