著者

古谷 正広 太田 安彦 北口 佳範 大崎 守 村井 美樹 磯貝 鉄也

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. B編 (ISSN:03875016)

巻号頁・発行日

vol.67, no.662, pp.2625-2631, 2001-10-25

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Compression ignition of a stoichiometric iso octane/oxygen/argon mixture was observed using a shock tube and a rapid compression machine. Reducing the compression temperature, the activation energy for the shock compression ignition fell suddenly at the critical temperature the ignition delay exceeded around 1 ms. This peculiarity could be seen in the shock compression stoichiometric methane ignition with which mixture absolutely no cool flame low-temperature reactions accompanied. Shock wave diagrams indicated that the ignition was originated not at the end of the tube but to the inside of the tube. It resulted in the smaller activation energies in the lower temperature regions. This phenomenon was not due to the difference of chemical reaction mechanisms. IIigh-speed schlieren observations using another shock tube with visualization windows have allowed us to confirm the peculiarity that the earliest ignition sites were located apart from the tube end and the ignition initiation structure would change depending on the compression temperature.

著者

髙島 良胤 田中 大樹 佐古 孝弘 古谷 正広

出版者

公益社団法人 自動車技術会

雑誌

自動車技術会論文集 (ISSN:02878321)

巻号頁・発行日

vol.45, no.2, pp.221-227, 2014 (Released:2018-01-25)

参考文献数

8

被引用文献数

3

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小型火花ガスエンジンにおいて,燃料供給機構を備えていない副室が燃焼および機関性能に及ぼす影響を調査した.希薄条件下において燃焼が緩慢になり熱効率低下の一要因になっている為,副室を用いて燃焼期間を短縮し熱効率を改善した.副室諸元が燃焼および機関性能に及ぼす影響について考察を加えた.

著者

古谷 正広 太田 安彦 北口 佳範 大崎 守 村井 美樹 磯貝 鉄也

出版者

The Japan Society of Mechanical Engineers

雑誌

日本機械学会論文集 B編 (ISSN:03875016)

巻号頁・発行日

vol.67, no.662, pp.2625-2631, 2001

被引用文献数

3

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Compression ignition of a stoichiometric iso octane/oxygen/argon mixture was observed using a shock tube and a rapid compression machine. Reducing the compression temperature, the activation energy for the shock compression ignition fell suddenly at the critical temperature the ignition delay exceeded around 1 ms. This peculiarity could be seen in the shock compression stoichiometric methane ignition with which mixture absolutely no cool flame low-temperature reactions accompanied. Shock wave diagrams indicated that the ignition was originated not at the end of the tube but to the inside of the tube. It resulted in the smaller activation energies in the lower temperature regions. This phenomenon was not due to the difference of chemical reaction mechanisms. IIigh-speed schlieren observations using another shock tube with visualization windows have allowed us to confirm the peculiarity that the earliest ignition sites were located apart from the tube end and the ignition initiation structure would change depending on the compression temperature.

著者

村井 美樹 古谷 正広 太田 安彦

出版者

一般社団法人日本機械学会

雑誌

講演論文集

巻号頁・発行日

vol.2000, no.35, pp.56-57, 2000-03-11