Research on Achievement of Both Thermal Efficiency Enhancement and NOx Reduction in Natural Gas Lean-burn Engine (Third Report)

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  • 天然ガス希薄燃焼エンジンにおける熱効率向上とNOx 低減の両立(第3 報)
  • 天然ガス希薄燃焼エンジンにおける熱効率向上とNOx低減の両立(第3報)エンジン出力から見た効果検証
  • テンネン ガス キハク ネンショウ エンジン ニ オケル ネツ コウリツ コウジョウ ト NOx テイゲン ノ リョウリツ(ダイ3ポウ)エンジン シュツリョク カラ ミタ コウカ ケンショウ
  • ―エンジン出力から見た効果検証―
  • - Efficiency Verification from the Viewpoint of Engine Output -

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Abstract

We are studying lean combustion of natural gas engine, in order to reduce environmental load. Previously, we proposed the ultra-lean rapid two layer combustion concept, which used an engine equipped with a direct injection injector in the sub-chamber, for the purpose of improving thermal efficiency and reducing NOx. In this research, we investigated the effect of this concept on engine output, and, as a result, have increased power by improvement in combustion speed in high revolution area.

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