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:
Apr. 10, 2012
Filed:
Sep. 08, 2008
Javier Franco, Columbus, IN (US);
Thomas A. Grana, Columbus, IN (US);
Daniel D. Wilhelm, Nashville, IN (US);
Xiao Lin, Zionsville, IN (US);
Javier Franco, Columbus, IN (US);
Thomas A. Grana, Columbus, IN (US);
Daniel D. Wilhelm, Nashville, IN (US);
Xiao Lin, Zionsville, IN (US);
Cummins Filtration IP, Inc., Minneapolis, MN (US);
Abstract
A real time, average pressure difference method for monitoring doser efficiency is described that determines the difference between the average pressure when the doser is not injecting and the average pressure when the doser is injecting at a predetermined commanded injection rate. The average pressure difference method results in improved doser efficiency monitoring. The method can be implemented in a number of areas. For example, in a diesel truck application, the doser efficiency can be monitored accurately in real time.