Development of a Pre-chamber Spark Plug of Gas Engine for Heat Pump Air-conditioner

GHP 用ガスエンジンにおけるプレチャンバープラグ開発

Gas engine-driven heat pump air-conditioners (GHP) have compressors powered by gas engine. The authors are developing a pre-chamber spark plug to improve the thermal efficiency of GHP. The pre-chamber spark plug is a spark plug that has a cup with some holes, and it can add an auxiliary combustion chamber to a single combustion chamber engine. The authors found that the thermal efficiency of engine at partial load was improved by using the pre-chamber spark plug instead of a standard spark plug. It will be able to effectively improve GHP efficiency much higher.GHP用ガスエンジンにプレチャンバープラグを適用することで,熱効率,燃焼の安定性,その他燃焼状態に及ぼす影響の確認を行った.点火位置,噴口径,カップ容積を変更したプレチャンバープラグを試作し,GHPの効率向上への寄与度が高い部分負荷効率領域で効率向上効果が得られる仕様を明らかにした.


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  • Accession Number: 01673408
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: May 15 2018 3:03PM