Vacuum servo booster

Details Vacuum servo booster Vacuum servo booster

1979-09-20

1982-05-11

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

92 99, 92165PR, 92166, F15B 910, F01B 1900, F16J 302

Patent

active

043287387

ABSTRACT:
A vacuum servo booster device includes a housing defined by a front shell and a rear shell, a valve body slidably supported by the rear shell and incorporating therein a valve mechanism, a flexible diaphragm connected to the circumference of the valve body and extending in the radial direction toward the outer circumference of the housing to divide the interior of the housing into a front chamber and a rear chamber, and a piston plate mounted around the valve body and extending contiguous to the diaphragm. The improvement is constituted by at least one rigid connecting rod extending through both chambers and the piston plate and slidingly and sealingly through the diaphragm with the opposite ends thereof being connected to respective shells.

REFERENCES:
patent: 2974646 (1961-03-01), Miller et al.
patent: 2980068 (1961-04-01), Stelzer
patent: 2989035 (1961-06-01), Stelzer
patent: 3082744 (1963-03-01), Gardner
patent: 3143927 (1964-08-01), French et al.
patent: 3411409 (1968-11-01), Bunyard
patent: 3537358 (1970-11-01), Bunyard
patent: 4270353 (1981-06-01), Thomas et al.

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