Patent · US Active

Exhaust system for an internal combustion engine

US7404290B2 · kind B2 · utility

3Cited by

21References

12Claims

0Family size

Assignee

J. Eberspaecher GmbH & Co. KG · DE

Inventors

Gerd Gaiser · Reutlingen, DE
Robert Hanitzsch · Weingarten, DE
Josef Rudelt · Esslingen am Neckar, DE

Key dates

Filing date	Sep 30, 2005
Grant date	Jul 29, 2008
Priority date	—
Expiry date	Sep 30, 2026

Classification

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

Abstract

The present invention relates to an exhaust system for an internal combustion engine, having an exhaust line for removing exhaust gas from the internal combustion engine and having a secondary fuel supply for introducing secondary fuel into the exhaust gas of the internal combustion engine. To improve the introduction of the secondary fuel into the exhaust, a recirculation device is connected to the exhaust line and to the secondary fuel supply so that the introduction of secondary fuel into the exhaust is accomplished via or through the recirculation device. The recirculation device has a circulation space which receives an exhaust substream from the exhaust line in which the secondary fuel is introduced into the exhaust substream and from which the modified exhaust substream is returned to the exhaust line.

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