Pneumatic servo booster

Details Pneumatic servo booster Pneumatic servo booster

1980-12-08

1986-05-27

Garrett, Robert E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91376R, F15B 910

Patent

active

045908451

ABSTRACT:
A pneumatic servo booster includes a housing, a flexible diaphragm partitioning the interior of the housing into front and rear chambers, a valve body slidably mounted in the housing and connected to the diaphragm, and a valve mechanism incorporated in the valve body and including a poppet valve cooperating with a valve seat formed on the valve body and with another valve seat formed on a plunger which is connected to an input rod and is slidably mounted in the valve body. A return movement restricting member restricts the return movement of the plunger with respect to the housing when the valve body returns to its return position.

REFERENCES:
patent: 3688647 (1972-09-01), Kytta
patent: 3937021 (1976-02-01), Sisco et al.
patent: 4043251 (1977-08-01), Ohmi
patent: 4200029 (1980-04-01), Ohmi
patent: 4257312 (1981-03-01), Ohmi et al.
patent: 4287811 (1981-09-01), Katagiri et al.

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