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. 27, 2004
Filed:
Jan. 31, 2002
Applicant:
Inventor:
Min Xu, Canton, MI (US);
Assignee:
Visteon Global Technologies, Inc., Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 3/704 ;
U.S. Cl.
CPC ...
F02M 3/704 ;
Abstract
Minimizing fuel injector opening time greatly improves fuel efficiency and performance. Pre-charging the fuel injector solenoid is an inexpensive means of reducing opening time. The solenoid is pre-charged to a level that is slightly below a current level that would move an armature located near the solenoid for a known period. A larger current is then applied to the solenoid which moves the armature quickly to an open position. A current is then applied that is less than the pre-charging or valve-opening current to hold the armature in a open position. Finally, all current is removed from the solenoid, allowing the armature to return to a closed position.