Electromagnet valve

Details Electromagnet valve Electromagnet valve

2005-01-04

2005-01-04

Bastianelli, John (Department: 3754)

Valves and valve actuation

Electrically actuated valve

Including solenoid

C251S337000

Reexamination Certificate

active

06837478

ABSTRACT:
The present invention relates to an electromagnet valve including a valve housing in which a valve closure member is movably guided, a magnet armature fitted to the valve closure member and executing a stroke movement in the direction of a magnet core arranged in the valve housing in dependence on the electromagnetic excitation of a valve coil fitted on the valve housing, and a spring which, in the electromagnetically non-excited valve position, positions the magnet armature at a defined axial distance from the magnet core so that the magnet armature is separated from the magnet core by an interspace. In addition to spring, a spring element that has a non-linear, preferably progressive characteristic curve acts on the magnet armature, the said spring element counteracting the magnet force.

REFERENCES:
patent: 3653630 (1972-04-01), Ritsema
patent: 4144514 (1979-03-01), Rinde et al.
patent: 5772179 (1998-06-01), Morinigo et al.
patent: 6273396 (2001-08-01), Kato
patent: 4204417 (1993-08-01), None
patent: 4244444 (1994-07-01), None
patent: 19502671 (1996-08-01), None
patent: 19833102 (1999-02-01), None
patent: 29723707 (1999-02-01), None
patent: 2626711 (1989-08-01), None
patent: 9308051 (1993-04-01), None
Search Report of German Patent Office for Appln 10016599.0.

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