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  • Summary & Details

Alcohol Diffusive Combustion Technique as an Alternative Diesel Combustion (Fourth Report) Effect of Reducing Diesel Fuel Fraction in Dual-Fuel Injection

ディーゼル代替アルコール拡散燃焼技術(第4報) 二燃料噴射の軽油割合低減効果

Detailed Information

Author(J)1) 脇坂 佳史, 2) 近藤 照明, 3) 西川 一明, 4) 冬頭 孝之, 5) 伊達 健治, 6) 植田 祐介, 7) 菅原 里志
Author(E)1) Yoshifumi Wakisaka, 2) Teruaki Kondo, 3) Kazuaki Nishikawa, 4) Takayuki Fuyuto, 5) Kenji Date, 6) Yusuke Ueda, 7) Satoshi Sugawara
Affiliation(J)1) 豊田中央研究所, 2) 豊田中央研究所, 3) 豊田中央研究所, 4) 豊田中央研究所, 5) デンソー, 6) デンソー, 7) デンソー
Affiliation(E)1) Toyota Central R&D Labs., 2) Toyota Central R&D Labs., 3) Toyota Central R&D Labs., 4) Toyota Central R&D Labs., 5) DENSO, 6) DENSO, 7) DENSO
Abstract(J)代替燃料として期待されるアルコールをディーゼルと同様に拡散燃焼させるため,着火源としての軽油をエタノールと同一噴孔から噴射する2燃料噴射弁を試作した.軽油流路内に絞りを組込み,主噴射中の軽油割合を低減することで,軽油割合が高負荷より高くなる低~中負荷で,smokeを大幅に低減できることを実証した.

Translation

Abstract(E)Alcohol fuel, namely methanol and ethanol, are promising fuel for diffusive combustion in heavy-duty diesel engines, while they are difficult to self-ignite. In this study, a prototype dual-fuel injector that injects diesel fuel as an ignition source from the same nozzle with ethanol was developed. By installing a small orifice into the diesel flow path and reducing the diesel proportion during the main injection, we demonstrated that smoke can be significantly reduced even under medium-load conditions where the diesel proportion is relatively high.

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