Patent · US Expired

Method for operating an internal combustion engine

US7347179B2 · kind B2 · utility

1Cited by

6References

3Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Götz Brachert · Stuttgart, DE
Rudiger Herweg · Eßlingen, DE
Kai Kanning · Stuttgart, DE
Matthias Pfau · Meiningen, DE
Jochen Schäflein · Stuttgart, DE
Hans-Jurgen Weimann · Oppenweiler, DE

Key dates

Filing date	Mar 24, 2006
Grant date	Mar 25, 2008
Priority date	—
Expiry date	Apr 12, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a method for operating an internal combustion engine in which the angular locations where the fuel/air mix combustions takes place can be controlled by an adjustment of the inlet and outlet valve timing, the timing of at least one of the intake and exhaust valve opening phases is shifted depending on the engine speed so as to reduce engine emissions.

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