Patent · US Active

Igniter for igniting a fuel-air-mixture using HF corona discharge and engine fitted with such igniters

US8857396B2 · kind B2 · utility

7Cited by

8References

22Claims

0Family size

Assignee

BORGWARNER BERU SYSTEMS GMBH · DE

Inventors

Thomas Giffels · Stuttgart, DE
Timo Stifel · Stuttgart, DE
Steffen Bohne · Freiberg, DE
Helmut Muller · Bensberg, DE

Key dates

Filing date	Aug 4, 2011
Grant date	Oct 14, 2014
Priority date	—
Expiry date	Jun 22, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02P15/04
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An igniter for igniting a fuel-air-mixture in a combustion chamber, in particular in a combustion engine with one or several combustion chambers, by generating a high frequency corona discharge, said ignitiger comprising an assembly comprising an ignition electrode, an outer conductor surrounding the ignition electrode, which has a front end and a rear end, and an electrical insulator arranged between the ignition electrode and the outer conductor, wherein the ignition electrode is part of an electrical high-frequency resonant circuit, protrudes over the front end of the outer conductor, and is connected to an alternate current source or alternate voltage source which feeds the HF-resonant circuit, and delivers a high frequency alternate current or a high frequency alternate voltage, respectively. The ignition electrode is branched into more than four electrode branches extending away from the outer conductor, in different directions.

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