Patent · US Active

Corona ignition device

US9553427B2 · kind B2 · utility

1Cited by

3References

20Claims

0Family size

Assignee

BorgWarner Ludwigsburg GmbH · DE

Inventors

Tom Achtstätter · Hemmingen, DE
Timo Stifel · Stuttgart, DE

Key dates

Filing date	Nov 15, 2013
Grant date	Jan 24, 2017
Priority date	—
Expiry date	Jun 17, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01T19/02
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a corona ignition device for igniting fuel in an internal combustion engine by means of a corona discharge, comprising a central electrode, an insulator, into which the central electrode plugs, a housing, into which the insulator plugs, a bobbin, onto which a coil which is attached to the central electrode is wound, and a shield cap, which is plugged onto an end portion of the bobbin facing the insulator. According to the invention, a portion of the central electrode protrudes through a bottom of the shield cap, or a circumferential wall of the shield cap has one or more slots, or the shield cap has a circumferential wall, which protrudes only on one side beyond the bottom of the shield cap only on one side.

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