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. 08, 2003
Filed:
Dec. 18, 2001
Applicant:
Inventor:
William J. Rodier, Metamora, IL (US);
Assignee:
Caterpillar Inc, Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 1/500 ; F02M 5/100 ;
U.S. Cl.
CPC ...
G01M 1/500 ; F02M 5/100 ;
Abstract
A method and apparatus for trimming a fuel injector that delivers multiple injections or injection segments per engine cycle is provided. Trimming a fuel injector comprises determining a first fuel quantity to be delivered by the plurality of injectors, partially suspending fuel delivery by one selected injector, determining a second fuel quantity, and determining a fuel characteristic of the selected injector in response to the first and second fuel quantities.