Pneumatic booster

Details Pneumatic booster Pneumatic booster

1982-05-14

1984-09-04

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91369A, 92 99, F15B 910, F01B 1900

Patent

active

044690096

ABSTRACT:
A pneumatic booster includes a housing, a power piston and flexible diaphragm assembly partitioning the interior of the housing into two chambers, a poppet valve mechanism for selectively connecting or disconnecting communication between the two chambers and disconnecting or connecting communication between one of the chambers and a reference pressure, an input rod for actuating the poppet valve mechanism and an output rod connected to the power piston. The poppet valve mechanism includes a plunger connected to the inner end of the input rod, a valve member, a valve body having an axial bore therein for slidably receiving the plunger, and a restricting member mounted on the plunger for restricting the relative axial displacement of the plunger and the valve body. A resilient member is interposed between the restricting member and the valve body to avoid impacting abutment between the restricting member and the valve body.

REFERENCES:
patent: 2828719 (1958-04-01), Ayers, Jr.
patent: 2894490 (1959-07-01), Ingres
patent: 3183789 (1965-05-01), Stelzer
patent: 3661054 (1972-05-01), Brown
patent: 4406213 (1983-09-01), Hoor

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