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. 25, 2001
Filed:
Dec. 23, 1999
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 valve opening and a hold coil suited to a hold to valve open during fuel injection using a small current, during the valve opening time, a high voltage is applied to the control coil suited to the valve opening operation and, during the time the valve is to be held open a low and stabilized voltage is applied to the hold coil. In a fuel injection apparatus, drive manner employed during a valve opening time and a valve hold time is optimized.