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:
Nov. 30, 2010
Filed:
May. 31, 2007
Mark Scaife, Metamora, IL (US);
Trent Cleveland, Metamora, IL (US);
Michael Lowe, Metamora, IL (US);
Cornelius Opris, Peoria, IL (US);
Evan Jacobson, Peoria, IL (US);
Mark Scaife, Metamora, IL (US);
Trent Cleveland, Metamora, IL (US);
Michael Lowe, Metamora, IL (US);
Cornelius Opris, Peoria, IL (US);
Evan Jacobson, Peoria, IL (US);
Caterpillar Inc, Peoria, IL (US);
Abstract
A method is provided for compensating for variability in ash accumulation rates within an aftertreatment element of an engine exhaust system. The method includes determining flow resistance values through the aftertreatment element and tracking minimum flow resistance values over time. The method also includes correlating the tracked minimum flow resistance values over time, with a model of engine oil consumption rate that is based on predetermined values for model engine oil consumption. The method further includes adjusting the predetermined values based on the tracked minimum flow resistance values over time.