Patent · US Expired

Internal combustion engine with direct injection

US6848415B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Neil Armstrong · Stuttgart, DE
Peter Hohner · Echterdingen, DE
Anton Waltner · Waiblingen, DE

Key dates

Filing date	Mar 20, 2003
Grant date	Feb 1, 2005
Priority date	—
Expiry date	Aug 5, 2023

Classification

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

Abstract

A four-stroke reciprocating-piston internal combustion engine includes a fuel injection device, which is arranged centrally in a combustion space and which introduces the fuel in the form of an injection cone into the combustion space, and includes at least one spark plug for each combustion space, the electrodes of which spark plug are arranged at the edge of the injection cone. At least two spark plugs are provided, of which the second spark plug has a markedly higher spark gap than the first spark plug.

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