Influence of Cathode Diameter of Plasma Jet Igniter on Discharge Characteristics

HE Liming; LIU Pengfei; QI Wentao; ZHANG Hualei; CHEN Gaocheng; BAI Xiaofeng

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Influence of Cathode Diameter of Plasma Jet Igniter on Discharge Characteristics

更新时间：2025-12-08

- Influence of Cathode Diameter of Plasma Jet Igniter on Discharge Characteristics
- Vol. 44, Issue 6, Pages: 1907-1912(2018)
- 作者机构：
  
  1. 空军工程大学航空航天工程学院
  2. 解放军94936部队
  3. 解放军93256部队
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：10 July 2018，
  
  Published：2018
- 稿件说明：
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HE Liming, LIU Pengfei, QI Wentao, et al. Influence of Cathode Diameter of Plasma Jet Igniter on Discharge Characteristics[J]. 2018, 44(6): 1907-1912.
DOI：

HE Liming, LIU Pengfei, QI Wentao, et al. Influence of Cathode Diameter of Plasma Jet Igniter on Discharge Characteristics[J]. 2018, 44(6): 1907-1912. DOI：

摘要

等离子体射流点火器产生的高温射流能够有效提高点火效率

为了研究阴极直径对等离子体射流点火器特性的影响

利用建立的实验测量系统

测量了不同阴极直径和工作介质气体质量流量下等离子体射流点火器的放电特性

并对实验结果进行分析。实验结果表明:减小阴极直径可以降低电弧着火条件

抑制电弧分流的发生;随着工作介质质量流量的增大

电弧电压和功率均值先增大后减小;随着阴极直径的增大

电弧电压和功率减小;阴极直径对电弧弧根跳动等不规则运动现象具有较大影响。

Abstract

The plasma jet igniter can produce a high temperature plasma jet to enhance ignition efficiency. In order to investigate the influence of cathode diameter on plasma jet igniter

the discharge characteristics of plasma jet igniter under different cathode diameters and different medium flow are measured based on an experimental measurement system. The experimental results show that the smaller cathode diameter will make discharge easier and more stable. With the increase of medium flow

the mean values of arc voltage and power will first increase and then decrease. With the increase of cathode diameter

the mean values of arc voltage and power will decrease. The cathode diameter has a remarkable influence on the irregular movement of plasma arc.

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