Patent · US Expired

Exhaust gas purification for internal combustion engines and method for operating the same

US7572305B2 · kind B2 · utility

1Cited by

12References

17Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ralf Wirth · Leonberg, DE
Dirk Samuelsen · Ludwigsburg, DE
Klaus Mueller · Tamm, DE
Carsten Becker · Weingarten, DE

Key dates

Filing date	Jul 22, 2004
Grant date	Aug 11, 2009
Priority date	—
Expiry date	Dec 16, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/10
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

The present invention relates to an exhaust emission control apparatus for an internal combustion engine and a process for operating it. The exhaust emission control has a particulate filter for filtering particulate matter from the exhaust of the internal combustion engine, at least one temperature sensor for detecting the temperature of the exhaust, an evaluation unit for evaluating the detected temperature, particularly with regard to a particulate mass burned during a regeneration operation of the particulate filter. The temperature sensor is positioned inside the particulate filter.

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