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. 20, 1999
Filed:
Jul. 29, 1998
Applicant:
Inventors:
Titus J Iwaszkiewicz, Woodridge, IL (US);
David V Rodgers, Villa Park, IL (US);
Assignee:
Navistar International Transportation Corp., Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123446 ; 123458 ; 123 4131 ; 25112922 ;
Abstract
An electric control for a fuel injector develops a commanded boost signal that is superimposed on a fuel injection pulse waveform. Variable operating parameters, such as engine speed, fuel injection quantity, engine coolant temperature, and engine air intake temperature are monitored and may diminish the duration of the commanded boost signal under certain conditions to avoid overheating electric circuit elements in the control through which electric power is delivered to the fuel injector.