Patent · US Expired

Method and device for dosing a reducing agent for the removal of nitrogen oxides from exhaust gases

US7017335B2 · kind B2 · utility

33Cited by

8References

21Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Sven Huber · Freilassing, DE
Hanspeter Mayer · Adnet, AT
Gerhard Mueller · Freilassing, DE
Michael Offenhuber · Adnet, AT

Key dates

Filing date	Sep 24, 2001
Grant date	Mar 28, 2006
Priority date	—
Expiry date	Jan 25, 2022

Classification

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

Abstract

A method and a device for metering a reducing agent is described, which is used for mass regulated metering of a reducing agent, in particular urea or a urea-water solution for the exhaust gas treatment of the exhaust gas of a diesel engine in particular. The device includes a mass sensor for measuring the reducing agent mass flow into the catalytic converter system.

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