Patent · US Active

Method for feeding thermal energy into an exhaust emission control unit connected in the exhaust gas system of an internal combustion engine

US8904764B2 · kind B2 · utility

5Cited by

0References

15Claims

0Family size

Assignee

HJS EMISSION TECHNOLOGY GMBH & CO. KG · DE

Inventors

Bettina Baier · Menden, DE
Bernd Maurer · Balve, DE
Klaus Schrewe · Brilon, DE
Frank Noack · Wulfen, DE

Key dates

Filing date	Mar 26, 2012
Grant date	Dec 9, 2014
Priority date	—
Expiry date	Mar 26, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

The invention relates to a method for feeding thermal energy into an exhaust emission control unit (2) connected in the exhaust gas system of an internal combustion engine by heating the exhaust gas flowing to the exhaust emission control unit (2). Said exhaust gas is heated to a SET temperature. In said method, the exhaust gas discharged from the internal combustion engine is heated to the SET temperature by converting hydrocarbons (HCs) metered into the exhaust gas flow at two oxidation catalytic converters (7, 10) series-connected in the flow direction of the exhaust gas.

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