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Multi-event corona discharge ignition assembly and method of control and operation

A technology of corona discharge and corona, which is applied in the field of corona discharge ignition system, can solve the problems of high energy consumption and energy cost for a long time, and achieve the effect of increasing voltage and volume, reducing arc, and simplifying electronic components

Inactive Publication Date: 2013-08-21
FEDERAL MOGUL IGNITION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, longer durations require higher energy consumption and corresponding energy costs

Method used

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  • Multi-event corona discharge ignition assembly and method of control and operation
  • Multi-event corona discharge ignition assembly and method of control and operation
  • Multi-event corona discharge ignition assembly and method of control and operation

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Embodiment Construction

[0023] One aspect of the present invention provides a corona discharge ignition system 20, the system 20 includes an igniter 22, the igniter 22 receives a plurality of electric energy pulses each having a radio frequency, and emits a plurality of electric field pulses each having a radio frequency. These electric field pulses ionize a portion of the fuel-air mixture and provide multiple pulses of corona discharge 24 over a period of time rather than one continuous corona discharge. Compared to prior art systems that employ a continuous, non-pulsed corona discharge to provide single-shot ignition, the pulsed corona discharge 24 of the present invention provides multiple-shot ignition of the fuel-air mixture, resulting in multiple Advantages include reduced energy consumption and cost, simplified electronic components, reduced arcing, and increased corona discharge 24 voltage and volume.

[0024] The igniter 22 of the corona discharge ignition system 20 includes an electrode 26 ...

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Abstract

A corona discharge ignition system 20 includes an igniter 22 for receiving pulses of electrical energy each having a radio frequency. The igniter 22 emits pulses of electrical field ionizing a fuel-air mixture and providing pulses of corona discharge 24, rather than a continuous, un-pulsed corona discharge over the same period of time. The system 20 includes at least one power supply 48, 50 providing the electrical energy to a corona drive circuit 52 and ultimately to the igniter 22. The system 20 can include a variable high voltage power supply 50 and a local charge storage device 70 for providing pulses of the electrical energy to the corona drive circuit 52. The system 20 provides a robust ignition comparable to a single event corona discharge ignition system, with improved resistance to arc formation, while using a fraction of the energy.

Description

[0001] Cross References to Related Art [0002] This application claims the benefit of US Provisional Application No. 61 / 422,824, filed December 24, 2010. technical field [0003] The present invention generally relates to a corona discharge ignition system and a method of igniting a fuel-air mixture using the corona discharge. Background technique [0004] One example of a corona ignition system is disclosed in US Patent No. 6,883,507 to Freen. The corona discharge ignition system includes an igniter with electrodes charged to a high radio frequency potential to provide an electric field with radio frequency in the combustion chamber. The igniter does not include any ground electrode elements immediately adjacent the firing tip. Instead, grounding is usually provided by the walls of the combustion chamber or the piston. An example of a corona igniter is disclosed in US Patent No. 2010 / 0083942 to Lykowski et al. [0005] The electric field provided by the igniter causes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02P9/00F02P23/04F02C7/266H01T13/50F02P15/08
CPCF02P9/007F02P15/08F02P23/045F02P3/01F02P9/00F02P23/04F02C7/266H01T13/50
Inventor 约翰·A·鲍里斯詹姆斯·D·吕科瓦基
Owner FEDERAL MOGUL IGNITION