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Corona ignition device with improved electrical performance

一种点火装置、电晕的技术，应用在电晕放电装置、电气元件、发动机点火等方向

Inactive Publication Date: 2015-01-21
FEDERAL MOGUL IGNITION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method of reverse assembly results in a series of operational and manufacturing problems that may be unacceptable
For example, it is difficult to keep insulators in the housing without tension

Method used

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  • Corona ignition device with improved electrical performance
  • Corona ignition device with improved electrical performance
  • Corona ignition device with improved electrical performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] A typical example of a corona ignition device 20 is Figure 1-Figure 8 shown. The corona ignition device 20 includes a center electrode 22 for receiving a high radio frequency voltage. The center electrode 22 includes a corona enhancing tip 24 for emitting a radio frequency electric field to ionize the fuel-air mixture and provide a corona discharge. The insulator 26 surrounds the center electrode 22 . The insulator 26 includes an insulator body region 28 and has an insulator outer diameter D io insulator nose region 30 . The corona ignition device 20 also includes a conductive element comprising a metal housing 34 and having a conductive inner diameter D c 36 of the middle part. Along a portion of the insulator nose region 30, the insulator outer diameter D io Greater than the conductive inner diameter D c . The outer diameter of the insulator D io Tapering away from the metal housing 34 and towards the high voltage corona enhancing tip 24, the corona ignition...

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PUM

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Abstract

A corona igniter (20) comprises a central electrode (22) surrounded by an insulator (26), which is surrounded by a conductive component. The conductive component includes a shell (34) and an intermediate part (36) both formed of an electrically conductive material. The intermediate part (36) is typically attached to a lower ledge (52) of the insulator outer surface (50) prior to inserting the insulator (26) into the shell (34). The shell firing end (56) is typically aligned with the lower edge and the intermediate firing end. The conductive inner diameter (Dg) is less than an insulator outer diameter (Dio) directly below the lower ledge (52) such the insulator thickness (ti) increases toward the electrode firing end (40).

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Patent Application Serial No. 13 / 843,336, filed March 15, 2013, and U.S. Provisional Application Serial No. 61 / 614,808, filed March 23, 2012, the entire contents of which are incorporated by reference in their entirety enter here. technical field [0003] The present invention generally relates to a corona ignition device for emitting a radio frequency electric field to ionize a fuel-air mixture and provide a corona discharge, and a method of forming the same. Background technique [0004] A corona discharge ignition system includes an ignition device having a center electrode to which a high radio frequency voltage is applied which creates a strong radio frequency electric field within the combustion chamber. This electric field ionizes a portion of the fuel and air mixture within the combustion chamber and initiates dielectric breakdown, accelerating the combustion of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T13/36H01T21/02H01T13/44H01T13/50
CPCH01T19/00H01T13/50H01T13/36H01T13/44H01T21/02Y10T29/49227Y10T29/49002H01T19/04H01T19/02F02P23/045H01T21/00
Inventor 约翰·安东尼·布伦斯约翰·E·米勒克里斯托弗·I·迈威尔詹姆斯·D·吕科瓦斯基
Owner FEDERAL MOGUL IGNITION
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