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:
Aug. 21, 2007
Filed:
Oct. 31, 2006
Richard Ptak, Woodstock, IL (US);
Robert A. Schmidt, Hoffman Estates, IL (US);
Richard Ptak, Woodstock, IL (US);
Robert A. Schmidt, Hoffman Estates, IL (US);
International Engine Intellectual Property Company, LLC, Warrenville, IL (US);
Abstract
An engine () and a method of operating it during cold start and ensuing running using a cold start aid such as a glow plug control () and glow plugs (). The control () monitors all glow plugs to distinguish between one that is effective and one that is ineffective. When a glow plug is disclosed to be ineffective, the engine control system () reduces the quantity of fuel introduced into the respective combustion chamber () in comparison to the quantity of fuel that would be introduced were the respective glow plug effective. This is beneficial in keeping the collection of hydrocarbons of surfaces of a diesel particulate filter () from increasing due to an ineffective glow plug.