Evaluation of Engine Performance by Changing Specification of Pre-chamber Spark Ignition Plug under Lean Burn Condition

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  • プレチャンバ式点火プラグの各種諸元が希薄条件下における 機関性能に及ぼす影響
  • プレチャンバシキ テンカ プラグ ノ カクシュ ショゲン ガ キハク ジョウケン カ ニ オケル キカン セイノウ ニ オヨボス エイキョウ

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Abstract

In this study, we focused on “Pre-chamber Spark Plug”, which has a pre-chamber at the tip of the standard plug without fuel supply mechanisms, for small size of gas engine. Although there have been many studies of pre-chamber spark plug in large size of natural gas engines, there have been very few studies of small size . For improving thermal efficiency, it is necessary to improve combustion under the leaner condition. To use pre-chamber spark plug, the combustion fluctuation was improved and combustion duration was become shorter. To use low heat conductivity of pre-chamber material, lean limit was extend.

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