Patent · US Expired

Motor vehicle provided with a diesel propulsion engine

US7581386B2 · kind B2 · utility

5Cited by

7References

21Claims

0Family size

Assignee

Zeuna-Starker GmbH & Co. KG · DE

Inventors

Marco Ranalli · Augsburg, DE
Stefan Schmidt · Aalen, DE
Andreas Mayr · Meitingen, DE
Jurgen Klement · Asbach-Bäumenheim, DE

Key dates

Filing date	Nov 12, 2003
Grant date	Sep 1, 2009
Priority date	—
Expiry date	Dec 22, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEnvironmental technology
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.