Patent · US Expired

Method for operating a diesel engine

US6640774B2 · kind B2 · utility

4Cited by

6References

10Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Thomas Betz · Langenselbold, DE
Rudiger Pfaff · Stuttgart, DE
Marco Stotz · Echterdingen, DE
Ulrich Wiebicke · Waiblingen, DE

Key dates

Filing date	Aug 17, 2001
Grant date	Nov 4, 2003
Priority date	—
Expiry date	Jan 21, 2022

Classification

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

Abstract

In a method for operating a diesel engine having a cylinder, a piston which is guided in a longitudinally displaceable manner oscillating between an upper dead center position and a lower dead center position in the cylinder, and an injector having an injector valve for the injection of a fuel quantity into the cylinder, in a compression cycle delimited by the movement of the piston from the lower dead center position to the upper dead center position, combustion air is compressed. In a working cycle delimited by the movement of the piston from the upper dead center position to the lower dead center position, the injection of the fuel quantity occurs. In all operating states the injection begins after the upper dead center position, the injector valve being abruptly opened.

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