Vacuum motor for an automotive vehicle

Details Vacuum motor for an automotive vehicle Vacuum motor for an automotive vehicle

1994-10-28

1996-06-11

Ryznic, John E.

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

92130A, F01B 1904, F16J 302

Patent

active

055245269

ABSTRACT:
A vacuum motor 10 for an automotive vehicle comprises a generally cylindrical housing 12 having an end wall 14 with the depression 16 therein and a diaphragm 22 axially reciprocating within the housing. The diaphragm includes an annular ridge 38 having a predetermined diameter which provides an interference fit for a spring 40 contained within the housing. The interference fit of the spring within the housing reduces the vibration of the spring and the objectionable noise produced by the vacuum motor.

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patent: 4612847 (1986-09-01), Bouvot et al.
patent: 4838771 (1989-06-01), Kikuchi
patent: 5161453 (1992-11-01), Yared et al.

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