Patent · US Active

Control method for temporarily increasing the exhaust gas temperature

US8245499B2 · kind B2 · utility

2Cited by

13References

5Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Christian Winge Vigild · Aldenhoven, DE
Johannes Kuenstler · Aachen, DE
Daniel Roettger · Eynatten, BE
Evangelos Karvounis · Aachen, DE

Key dates

Filing date	Dec 12, 2008
Grant date	Aug 21, 2012
Priority date	—
Expiry date	Jul 22, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a control method for increasing the exhaust gas temperature of an internal combustion engine by increasing the exhaust back-pressure, yet maintaining an exhaust gas recirculation rate. Further, the fuel injection quantity of a main injection into the engine is increased. In this way, it is possible to increase the temperature of the exhaust gas and avoid engine oil dilution due to retarded post-injections.

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