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:
Apr. 22, 2003
Filed:
Nov. 02, 2001
Makoto Yamakado, Tsuchiura, JP;
Yoshio Okamoto, Minori-machi, JP;
Yzo Kadomukai, Ishioka, JP;
Yoshiyuki Tanabe, Hitachinaka, JP;
Hiromasa Kubo, Yokohama, JP;
Toshio Takahata, Atsugi, JP;
Kenji Tabuchi, Hitachinaka, JP;
Yasunaga Hamada, Hitachinaka, JP;
Other;
Abstract
Using a control coil having a high response characteristic suited to the valve opening and a hold coil suited to a hold to be held a large force by a small large current, during the valve opening time a high voltage is applied to the control coil suited to the valve opening and during a valve opening hold time a low and stabilized voltage is applied to the hold coil suite to the holding, and then a valve body driven. In a fuel injection apparatus, a drive manner during a valve opening time and a hold time is optimized.