Patent · US Active

Method for operating an internal combustion engine and device for implementing the method

US8578701B2 · kind B2 · utility

0Cited by

9References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Torsten Handler · Stuttgart, DE
Christian Walz · Durmersheim, DE
Matthias Loehr · Steinheim, DE

Key dates

Filing date	Sep 7, 2006
Grant date	Nov 12, 2013
Priority date	—
Expiry date	Sep 23, 2029

Classification

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

Abstract

A method for operating an internal combustion engine in whose exhaust-gas region at least one SCR catalytic converter is disposed, which is acted upon by a reagent contributing to the NOx conversion in the SCR catalytic converter, and a device for implementing the method. The reagent level in the SCR catalytic converter is controlled or regulated to a predefined reagent setpoint level, which is specified to at least a maximum value, which corresponds to an SCR catalytic converter completely filled with reagent. In this way the SCR catalytic converter is always operated at the highest possible efficiency at which the highest possible NOx conversion takes place.

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