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:
Mar. 21, 2006
Filed:
Mar. 31, 2005
Daniel R. Puckett, Peoria, IL (US);
W. John Love, Dunlap, IL (US);
Daniel R. Puckett, Peoria, IL (US);
W. John Love, Dunlap, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A control system for a fuel injector is disclosed. The control system has a valve element movable between a first position and a second position, an armature connected to the valve element, a solenoid configured to move the armature and connected valve element, and a controller in communication the solenoid. The controller is configured to energize the solenoid at a first current level to initiate movement of the valve element from the first position toward the second position, at a second current level less than the first current level during movement of the valve element from the first position toward the second position, at a third current level less than the second current level after the valve element has reached the second position, and at a fourth current level less than the third current level after the valve element has been in the second position for a predetermined period of time.