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:
Dec. 14, 2004
Filed:
Aug. 22, 2002
Applicant:
Inventors:
Shoji Katsumata, Gotemba, JP;
Isao Matsumoto, Susono, JP;
Kazuhiko Shiratani, Susono, JP;
Tametoshi Mizuta, Susono, JP;
Keiji Yoeda, Numazu, JP;
Makoto Ogiso, Mishima, JP;
Hideyuki Nishida, Suntou-gun, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 3/102 ;
U.S. Cl.
CPC ...
F16K 3/102 ;
Abstract
A rush adjuster which adjusts a relative position between a valve body and an armature in an axial direction so that a state of zero-rush is formed is arranged between an armature shaft and a valve shaft. At a time of starting an electromagnetic drive valve, a first starting current is applied to either one of an upper coil and a lower coil for generating electromagnetic forces for attracting the armature closer, whichever a distance with respect to the armature is shorter.