The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2008
Filed:
Apr. 24, 2003
Yuta Ichinose, Tokyo, JP;
Yoshihiko Onishi, Tokyo, JP;
Yuta Ichinose, Tokyo, JP;
Yoshihiko Onishi, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An electromagnetic valve with improved performance includes a solenoid coil, and a rod arranged on an axis of the solenoid coilfor movement in an axial direction thereof. A plungeris fixedly attached to an intermediate portion of the rod. A coreis arranged at one side of the rod so as to surround it and operated to attract the plunger upon energization of the solenoid coil. A yokeis arranged at the other side of the plunger so as to surround it. A pair of bearingsformed of a non-magnetic substance are arranged at opposite sides of the plunger, respectively, for movably supporting the rod at an outer peripheral surface thereof by clearance fit. The pair of bearings are clearance fitted to an inner peripheral surface of the core or to an inner peripheral surface of the yoke.