Vacuum servomotor

Details Vacuum servomotor Vacuum servomotor

1978-11-22

1981-02-10

Cohen, Irwin C.

Motors: expansible chamber type

With motive fluid valve

Plural separately controlled waste passages for single...

91459, 13762565, F15B 1108, F15B 13044

Patent

active

042494575

ABSTRACT:
A vacuum servomotor comprises a cup-shaped casing having a bottom wall provided thereon with a vacuum nozzle for connection to a source of vacuum and an air nozzle in communication with the atmosphere, the casing being integrally formed with a cylindrical support structure extending inwardly from the bottom wall and surrounding the air and vacuum nozzles. The servomotor further comprises a support plate secured to an inner end of the support structure, and an electromechanically operated solenoid valve assembly mounted on the support plate within the support structure to normally open and close the air and vacuum nozzles, the valve assembly closing and opening the air and vacuum nozzles in response to an output signal from an electric control circuit.

REFERENCES:
patent: 1908471 (1933-05-01), Brewer
patent: 2340817 (1944-02-01), Hurst
patent: 3477346 (1969-11-01), Slavin et al.
patent: 3584650 (1971-06-01), Macauley
patent: 3654963 (1972-04-01), Ages
patent: 3763744 (1973-10-01), Fournell et al.
patent: 3961608 (1976-06-01), Hertfelder
patent: 4128044 (1978-12-01), Larson et al.

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