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Corona ignition device and method for producing an ignition head for a corona ignition device

A technology of ignition device and ignition head, which is applied in the direction of engine ignition, circuit, spark plug, etc., can solve the problem of high cost related to ignition head

Active Publication Date: 2014-05-14
BORGWARNER BERU SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the costs associated with producing this type of ignition head are much higher

Method used

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  • Corona ignition device and method for producing an ignition head for a corona ignition device
  • Corona ignition device and method for producing an ignition head for a corona ignition device
  • Corona ignition device and method for producing an ignition head for a corona ignition device

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Embodiment Construction

[0020] figure 1 and 2 The ignition device shown in produces a corona discharge that ignites fuel in the engine combustion chamber. The corona ignition device has a housing 1 which is closed at one end by an insulator 2 . Inserted into the insulator 2 is a central electrode 3 which carries an ignition head 4 with a plurality of ignition pins 5 . The central electrode 3 together with the insulator 2 and the housing 1 forms a capacitor connected in series to a coil connected to the central electrode 3 . The capacitor and the coil arranged in the housing are part of an electrical oscillating circuit, the excitation of which makes it possible to generate a corona discharge at the ignition tip of the ignition head 4 .

[0021] The end 1 a of the casing 1 surrounding the insulator 2 may have an external thread 1 b for screwing into the engine block. However, it is also possible to fix the corona ignition device to the engine block in other ways instead of external threads.

[00...

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PUM

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Abstract

The invention relates to corona ignition device for igniting fuel in a combustion chamber of an engine by means of a corona discharge, comprising an insulator (2), a center electrode (3), which plugs into the insulator (2)and carries an ignition head (4) having a plurality of ignition needles (5), and a housing (1), into which the insulator (2) plugs. In accordance with the invention, the ignition needles (5) and the center electrode (3) plug into the ignition head (4). The invention also relates to a method for producing an ignition head (4) for a corona ignition device, wherein a green compact of the ignition head (4) is produced by injection molding of metal powder, and the green compact is sintered whilst ignition needles (5) and / or a center electrode (3) plug thereinto.

Description

technical field [0001] The invention relates to a corona ignition device having the features stated in the preamble of claim 1 known from DE 10 2010 045 173 A1. Background technique [0002] The more easily the fuel is ignited by the corona discharge in the combustion chamber of the engine, the greater the corona discharge will be. The central electrode of a corona igniter therefore generally carries an ignition head having a plurality of ignition tips from each of which a corona discharge can be initiated. [0003] Ignition heads with a plurality of ignition tips can be produced very cost-effectively by cutting from sheet metal, as described in DE 10 2010 45 175 A1. However, the ignition tips of star-shaped ignition heads cut from sheet metal can only cover a few spatial directions, thus limiting the amount of corona discharge that can be achieved from the ignition tips. [0004] Since the ignition pins can protrude from any direction of the ignition head, a larger corona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02P23/04
CPCF02P23/04H01T13/20H01T13/50Y10T29/49002
Inventor T·施蒂费尔H·米勒
Owner BORGWARNER BERU SYST