Patent · US Expired

Method and system for feeding a reducing agent into a catalyst device

US6502390B2 · kind B2 · utility

12Cited by

9References

8Claims

0Family size

Assignees

Dr. Ing. h.c. F. Porsche AG · DE
AUDI AG · DE
Bayerische Motoren Werke Aktiengesellschaft · DE
Daimlerchrysler AG · US
VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Christian Goerigk · Hemmingen, DE
Michael Illek · Stuttgart, DE
Stefan Wessels · Diez, DE

Key dates

Filing date	Aug 9, 2001
Grant date	Jan 7, 2003
Priority date	—
Expiry date	Aug 9, 2021

Classification

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

Abstract

The present invention concerns a method and a system for feeding a reducing agent into a catalyst device. A first reservoir is provided and has a solid reducing agent, a second reservoir is provided and has a solvent for the solid reducing agent, and a reducing agent solutions is produced from the solid reducing agent and the solvent. The reducing agent solution is intermittently stored in a third reservoir, and the reducing agent solution is fed from the third reservoir into the catalyst device.

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