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:
Sep. 11, 2001
Filed:
Oct. 28, 1999
Applicant:
Inventors:
Robert Douglas Cryer, Erie, PA (US);
Sagar Arvindbhai Patel, Erie, PA (US);
Shawn Michael Gallagher, Erie, PA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01P 5/00 ; F02D 4/122 ;
U.S. Cl.
CPC ...
G01P 5/00 ; F02D 4/122 ;
Abstract
A method and system for determining degradation of fuel pump performance in a locomotive having an internal combustion engine is provided. The method allows for monitoring a signal indicative of a fuel value delivered by the fuel pump and for adjusting the value of the monitored signal for deviations from an estimated nominal fuel value due to external variables to generate an adjusted fuel value. The method further allows for comparing the value of the adjusted fuel value against the nominal fuel value to determine the performance of the pump.