A Study on Cold Emission Reduction of Direct-Injection Gasoline Engine by Controlling the In-cylinder Gas Properties (First Report)
筒内状態量制御による直噴ガソリンエンジンの冷間エミッション低減に関する研究（第１報）
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- Available on the other site
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- Publication code
- 20234370
- Paper/Info type
- JSAE Transaction
Vol.54 No.4
- Pages
- 718-725(Total 8 p)
- Date of publication
- Jul 2023
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 論文 Translation |
|---|---|
| Category(E) | Paper |
| Author(J) | 1) 堀 隼基, 2) 工藤 毅暁, 3) 瀬戸 祐利, 4) 萩野 雄介, 5) 内田 健児, 6) 藤川 竜也, 7) 山川 正尚, 8) 人見 光夫 |
| Author(E) | 1) Junki Hori, 2) Takeaki Kudo, 3) Masatoshi Seto, 4) Yusuke Hagino, 5) Kenji Uchida, 6) Tatsuya Fujikawa, 7) Masahisa Yamakawa, 8) Mitsuo Hitomi |
| Affiliation(J) | 1) マツダ, 2) マツダ, 3) マツダ, 4) マツダ, 5) マツダ, 6) マツダ, 7) マツダ, 8) マツダ |
| Abstract(J) | ＥＵＲＯ７をはじめ一層厳格化される排気規制適合のためには，気化霧化の悪い極冷間始動時における蒸発を促進し，燃焼に寄与しない未燃成分を大幅に低減する必要がある．そこで，直噴ガソリンエンジンの可変動弁系を用いた状態量制御により，筒内ガスの過熱度などを高めることで冷間EMの低減を図る研究を行った． Translation |
| Abstract(E) | The unburned components that do not contribute to combustion exhausted from internal combustion engines should be significantly reduced. In this study, enhancement of fuel evaporation under cold conditions was investigated by controlling the in-cylinder gas properties of a directinjection gasoline engine equipped with a variable valve system. It was confirmed by controlling the degree of superheat for liquid fuels allows the reduction of unburned hydrocarbons and particulate numbers in cold conditions. Late intake valve opening (LIVO) has achieved lower emissions and superior combustion stability under extremely cold conditions by effectively utilizing the energy of the intake air flow. |
