Patent · US Active

Internal combustion engine

US7506631B2 · kind B2 · utility

3Cited by

10References

8Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Frank Altenschmidt · Biberach, DE
Dietmer Bertsch · Aspach, DE
Michael Dohn · Sersheim, DE
Uwe Schaupp · Wernau, DE
Dirk Voigtlaender · Ditzingen, DE

Key dates

Filing date	May 1, 2007
Grant date	Mar 24, 2009
Priority date	—
Expiry date	May 9, 2027

Classification

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

Abstract

In an internal combustion engine having at least one cylinder with a combustion chamber formed between a piston and a cylinder head, inlet and outlet ducts formed in the cylinder head, a fuel injector arranged in the cylinder head into for forming a hollow fuel cone in the combustion chamber and a spark plug arranged such that, during The injection of fuel, the electrodes of the spark plug are outside the injected hollow fuel cone, the spark plug and the fuel injector are positioned in such a way that a first distance (C) is provided between an injector axis and a free end of the central electrode of the spark plug, and the cylinder bore has a diameter (D), with a ratio (C/D) of the first distance (C) and a bore diameter (D) being in a range of 0.1 to 0.19, in particular 0.13 to 0.17.

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