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:
Jul. 29, 2003
Filed:
Dec. 31, 2001
Shinichiro Tomoda, Miyagi, JP;
Akira Nagasaki, Miyagi, JP;
Masayuki Shibata, Miyagi, JP;
Shigeto Ryuen, Miyagi, JP;
Noboru Hino, Miyagi, JP;
Keihin Corporation, Tokyo, JP;
Abstract
A solenoid valve includes a coil assembly accommodated in a solenoid housing having an end wall at one end thereof. A stationary core is magnetically coupled to the end wall and inserted into one end of a center bore, and a movable core opposed to the stationary core is inserted into the other end of the center bore. A yoke plate opposed to the other end of the coil assembly is coupled to the other end of the solenoid housing, and a collar made of a non-magnetic material adapted to guide the axial movement of the movable core is inserted into the other end of the center bore through a central portion of the yoke plate. A rod operatively connected to the movable core is connected to a valve member accommodated in a valve housing connected to the solenoid housing. In such solenoid valve, in order to facilitate the processing and assembling of the collar, the movable core and the rod and to provide a reduction in cost, the valve housing is provided with a guide for guiding the axial movement of the rod, and one end of the rod is put into coaxial abutment against the other end of the movable core.