Electric vacuum regulator valve

Details Electric vacuum regulator valve Electric vacuum regulator valve

1998-04-24

1999-10-19

Michalsky, Gerald A.

Fluid handling

Pressure modulating relays or followers

25112908, 25112916, G05B 1148

Patent

active

059671726

ABSTRACT:
An electric vacuum regulator has an enclosure containing an interior space and a solenoid assembly. An inlet port communicates the interior space to source vacuum. Vacuum communicated to the interior space is vented through a filter to atmosphere. Regulated vacuum is provided through an outlet port. A valve mechanism operated by the solenoid assembly selectively vents vacuum from the inlet port to the vent port and thereby creates regulated vacuum at the outlet port. The valve mechanism includes a valve element and a seat element. The latter has a continuous annular seat surface which circumscribes a vent path from the interior space to atmosphere that is opened and closed by the valve element, and a further surface which is disposed radially outward of the seat surface and against which the valve element also seats when closing the vent path. A groove that separates the further surface from the seat surface is vented to the interior space by through-holes in the valve element.

REFERENCES:
patent: 2372853 (1945-04-01), Ray
patent: 2631612 (1953-03-01), Buescher
patent: 4534375 (1985-08-01), Fox
patent: 4610428 (1986-09-01), Fox
patent: 4850384 (1989-07-01), Cook

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