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Method for igniting fuel using a corona discharge

一种电晕放电、燃料的技术，应用在电晕放电装置、电火花点火装置、发动机点火等方向，能够解决电晕形成不理想、不能一直获得电晕等问题

Inactive Publication Date: 2012-07-11
BORGWARNER BERU SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of this method is that the formation of the corona is not ideal, especially the ideal size of the corona cannot always be obtained

Method used

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  • Method for igniting fuel using a corona discharge
  • Method for igniting fuel using a corona discharge
  • Method for igniting fuel using a corona discharge

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0020] refer to figure 1 , The combustion chamber 1 is surrounded by grounded chamber walls 2, 3, 4. The ignition electrode 5 is partly wrapped by an insulator 6 along the length direction, and is inserted into the combustion chamber 1 along the top chamber wall 2 in an electrically insulating manner.

[0021] The series oscillating circuit 7 includes the ignition electrode 5 and the walls 2 to 4 of the combustion chamber 1 as well as a capacitor 8 and an inductor 9 . Of course, more inductors and / or capacitors and other elements known to those skilled in the art for series oscillation circuits can also be added to the series oscillation circuit 7 .

[0022] As shown in the figure, a DC / AC converter is used to excite the oscillating circuit 7. The DC / AC converter is composed of a high-frequency generator 10, which includes a DC voltage source 11 and a transformer 12. The primary side of the transformer 12 has an intermediate tap 13 , thus enabling the primary windings 14 and...

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PUM

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Abstract

The invention relates to a method for igniting a fuel / air mixture in a combustion chamber of a cyclically operating internal combustion engine using an ignition electrode constitutes a capacitance in cooperation with a wall of the combustion chamber that is at ground potential, wherein an electric oscillating circuit, which is connected to a secondary side of an electric DC / AC converter and the ignition electrode, is excited by way of a primary voltage applied to a primary side of the electric DC / AC converter, wherein the excitation of the oscillating circuit is controlled such that a corona discharge igniting the fuel / air mixture is created in the combustion chamber at the ignition electrode. According to the invention, the primary voltage is controlled to a specified setpoint value which is changed during the combustion duration of the corona discharge and is dependent upon the crankshaft angle and on at least one characteristic value of the fuel / air mixture.

Description

technical field [0001] The present invention is directed to a method with the technical features described in the claims, such a method has been disclosed in the international application WO2010 / 011838A1. Background technique [0002] International application WO2010 / 011838A1 discloses a method for igniting a fuel / air mixture in a combustion chamber of an internal combustion engine by corona discharge in the combustion chamber. For this purpose, an ignition electrode with an electrically insulating structure protrudes into the combustion chamber from one of the walls of the combustion chamber at ground potential, preferably opposite to a reciprocating piston in the combustion chamber. The ignition electrode forms a capacitor with the grounded voltage chamber wall of the combustion chamber as counter electrode. The combustion chamber and its contents act as the dielectric. Depending on which working stroke the piston is in, the combustion chamber contains air, a fuel-air mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02P23/04H01T19/04
CPCF02P3/04F02P23/04F02P3/01
Inventor M·特朗普
Owner BORGWARNER BERU SYST
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