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:
Sep. 01, 2009
Filed:
Nov. 12, 2003
Marco Ranalli, Augsburg, DE;
Stefan Schmidt, Langweid, DE;
Andreas Mayr, Waltershofen, DE;
Jurgen Klement, Asbach-Baumenhain, DE;
Marco Ranalli, Augsburg, DE;
Stefan Schmidt, Langweid, DE;
Andreas Mayr, Waltershofen, DE;
Jurgen Klement, Asbach-Baumenhain, DE;
Zeuna-Starker GmbH & Co. KG, Augsburg, DE;
Abstract
A motor vehicle includes a diesel propulsion engine and an exhaust system that comprises a discontinuously regenerating exhaust gas purification system. A fuel evaporator unit serves to enrich engine exhaust gases with fuel vapors. The fuel evaporator unit is connected to a vehicle fuel tank, and is provided upstream of the exhaust gas purification system. The fuel evaporator unit includes a fuel evaporator in the form of a heat exchanger that is exposed to the exhaust gas stream. The heat exchanger has a fuel feed line and a fuel vapor discharge. The fuel evaporator unit also includes an auxiliary oxidizing converter connected upstream of the heat exchanger. A percentage of nonburned diesel fuel in the exhaust gases fed into the auxiliary oxidizing converter is adjustable using an enrichment device.