Patent · US Active

Corona ignition device

US9373941B2 · kind B2 · utility

1Cited by

2References

15Claims

0Family size

Assignee

BorgWarner Ludwigsburg GmbH · DE

Inventors

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

Key dates

Filing date	Mar 12, 2014
Grant date	Jun 21, 2016
Priority date	—
Expiry date	Aug 28, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01T19/04
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a corona ignition device for igniting fuel in a combustion chamber of an engine by means of a corona discharge, comprising a tubular housing, a coil arranged in the tubular housing, an insulator, which plugs into the tubular housing, and a center electrode, which is connected to the coil, plugs into the insulator and leads to at least one ignition tip. In order to increase the service life of the ignition tip, said ignition tip consists in part or completely of an iridium-based alloy containing 3 to 30% by weight of rhodium or is coated by a burn-up layer.

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