Electromagnetic valve device

Details Electromagnetic valve device Electromagnetic valve device

2005-07-12

2005-07-12

Bastianelli, John (Department: 3751)

Valves and valve actuation

Electrically actuated valve

Including solenoid

C251S337000

Reexamination Certificate

active

06916006

ABSTRACT:
An electromagnetic valve device for reducing noise resulting from an internal collision of a movable core against a guide member has a fixed core, a cylindrical movable core, a valve member, for reciprocating in an axial direction of the movable core in a cooperative manner with the movable core to open and close fluid paths, coil sections for forming a magnetic field by electrical conduction thereof to attract the movable core to the fixed core so as to move the movable core in the axial direction, and a guide member having a guide wall for guiding the movable core in the axial direction from inside of the movable core in its radial direction. A space is formed inside the guide wall in its radial direction.

REFERENCES:
patent: 4376447 (1983-03-01), Chumley
patent: 4635683 (1987-01-01), Nielsen
patent: 4858886 (1989-08-01), Tatara
patent: 5064166 (1991-11-01), Schechter
patent: 5992461 (1999-11-01), Gilmore et al.
patent: 6073908 (2000-06-01), Koga et al.
patent: 61-268863 (1986-11-01), None
patent: 2002-242790 (2002-08-01), None

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