Electromagnetic valve assembly

Details Electromagnetic valve assembly Electromagnetic valve assembly

1991-03-13

1992-09-01

Hepperle, Stephen M.

Fluid handling

Systems

Dividing into parallel flow paths with recombining

G05D 706

Patent

active

051431203

ABSTRACT:
An electromagnetic valve assembly has a main valve seat 32 and an auxiliary valve seat 35 disposed parallel to one another between an inlet opening 30 and an outlet opening 31. The auxiliary valve seat 35 has a smaller opening cross section than valve seat 32. Dimensions and mass of the auxiliary closing element 36 appertaining to the auxiliary valve seat 35 are correspondingly smaller than those of closing element 33 of valve seat 32. It can hence be brought into its open position much faster, which permits reducing the hydraulic stress exerted on the main closing element 33 and increasing the opening speed thereof.

REFERENCES:
patent: 3149644 (1964-09-01), Bosack
patent: 3726296 (1973-04-01), Friedland et al.
patent: 3986521 (1976-10-01), Wittmann-Liebold et al.
patent: 4170245 (1979-10-01), Haley
patent: 4248263 (1981-02-01), Langill et al.
patent: 4303097 (1981-12-01), Zerby
patent: 4503915 (1985-03-01), Gagliardo et al.
patent: 4577658 (1986-03-01), Bosteels et al.
patent: 4901702 (1990-02-01), Beicht et al.

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