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. 23, 2013
Filed:
Sep. 14, 2009
Martin Laermann, Clarkston, MI (US);
Marek Tatur, Pleasant Ridge, MI (US);
Harsha Nanjundaswamy, Auburn Hills, MI (US);
Dean Tomazic, Orion Township, MI (US);
Martin Laermann, Clarkston, MI (US);
Marek Tatur, Pleasant Ridge, MI (US);
Harsha Nanjundaswamy, Auburn Hills, MI (US);
Dean Tomazic, Orion Township, MI (US);
FEV GmbH, Aachen, DE;
Abstract
The present invention discloses an exhaust system for an internal combustion engine that provides diesel particulate filter (DPF) failure detection and/or monitoring of nonmethane hydrocarbons (NMHC) for an internal combustion engine. The system can include a main exhaust duct and a secondary exhaust line operative for exhaust gas to pass therethrough. The system has an oxidation catalyst and a main particulate filter located in line with the main exhaust duct. A monitoring particulate filter is also included and located within the secondary exhaust line. The secondary exhaust line and the monitoring particulate filter are located downstream from the main particulate filter.