Patent · US Expired

Method and apparatus for processing exhaust gas from an internal combustion engine

US6530215B2 · kind B2 · utility

12Cited by

8References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ulrich Alkemade · Leonberg, DE
Peter Horstmann · Leonberg, DE

Key dates

Filing date	Aug 22, 2001
Grant date	Mar 11, 2003
Priority date	—
Expiry date	Aug 22, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02A50/20
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

The apparatus (1) for treating exhaust gas from an internal combustion engine includes a storing catalyzer for absorbing NOx during lean operating conditions and a device for burning fuel (3) in an exhaust gas stream (2) to produce a reducing atmosphere in the exhaust gas for storing catalyst regeneration and an aerodynamic control device for controlling the burning of the fuel in the exhaust gas stream, so that combustion is clearly improved when the engine is operated under lean operating conditions and no carbon is formed.

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