Patent · US Active

Igniter for igniting a fuel/air mixture in a combustion chamber, in particular in an internal combustion engine, by creating a corona discharge

US8468992B2 · kind B2 · utility

8Cited by

4References

7Claims

0Family size

Assignee

BORGWARNER BERU SYSTEMS GMBH · DE

Inventors

Ganghua Ruan · Stuttgart, DE
Gerd Braeuchle · Gundelsheim, DE

Key dates

Filing date	Jun 2, 2011
Grant date	Jun 25, 2013
Priority date	—
Expiry date	Jan 31, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH01T13/20
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Described is an igniter comprising an arrangement composed of an ignition electrode, an outer conductor coaxially enclosing the ignition electrode, and an electric insulator disposed between the ignition electrode and the outer conductor, via which insulator the ignition electrode and the outer conductor are interconnected, for igniting a fuel/air mixture in a combustion chamber, in particular in an internal combustion engine comprising one or more combustion chambers which are delimited by walls that are at ground potential, by creating a corona discharge in an area surrounding the tip of the ignition electrode. According to the invention, the ratio of the outer diameter d of the ignition electrode and the inner diameter D of the outer conductor is in the range of 0.3 to 0.44.

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