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:
May. 07, 2013
Filed:
Feb. 19, 2003
Applicants:
Xinqun Gui, Naperville, IL (US);
Guoqing Zhang, Lisle, IL (US);
Xinlei Wang, Naperville, IL (US);
Inventors:
Assignee:
International Engine Intellectual Property Company, LLC., Lisle, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 5/04 (2006.01); F01N 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An exhaust system () of a diesel engine () has a diesel particulate filter () for treating exhaust gas. When trapped soot has accumulated to an extent that may affect performance of the filter, an engine control system () forces combustion of trapped soot by increasing exhaust back-pressure using a control device () such as a back-pressure control valve or vanes of a variable geometry turbocharger.