Patent · US Expired

Method for operating an internal combustion engine

US7353799B2 · kind B2 · utility

1Cited by

2References

8Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Goetz Brachert · Stuttgart, DE
Ruediger Herweg · Eßlingen, DE
Kai Kanning · Stuttgart, DE
Matthias Pfau · Meiningen, DE
Jochen Schaeflein · Stuttgart, DE
Hans-Juergen Weimann · Oppenweiler, DE

Key dates

Filing date	Sep 2, 2004
Grant date	Apr 8, 2008
Priority date	—
Expiry date	Sep 2, 2024

Classification

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

Abstract

Disclosed is a method for operating an internal combustion engine, wherein fuel is injected in a pre-injection and main injection process. According to the invention, pre-injection occurs in the intermediate compression stroke of the internal combustion engine. Main injection is carried out in an intake synchronous manner. The invention can be used for internal combustion engines, particularly for passenger cars and commercial vehicles.

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