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含水メタノール燃料の小形4サイクル式火花点火機関性能に及ぼす影響 藤田, 尚毅 斎藤, 実 大西, 謙一 永倉, 喜一郎 Internal Combustion Engine 4-Cycle Spark Engines Alchool Water-Methanol Fuel Mixture Heating Experlment In this paper, we investigated the effect of water mixed in methanol on the performance of 4-cycle spark ignition engine. The water mixing ratio in methanol was varied from 0 to 30% by weight. Experiments at various excess air ratios were caried out under a constant charging efficiency and engine speed. The mean burning gas temperature in a cylinder was measured with a platinum wire resistor thermometer fixed near the cylinder head. When the excess air ratio was decreased or the amount of water mixed in methanol was increased, the mean temperature in the cylinder decreased and the ratio of burned fuel to supplied fuel decreased. In order to facilitate fuel vaporization, the air fuel mixture was heated, which resulted in an increase in thermal efficiency. journal article 日本機械学会 1987-01-01 VoR application/pdf 日本機械学會論文集. B編 496 53 3822 3826 0387-5016 https://iwate-u.repo.nii.ac.jp/record/9911/files/tjsmeb-v53n496p3822-3826.pdf https://iwate-u.repo.nii.ac.jp/records/9911 jpn http://ci.nii.ac.jp/Detail/detail.do?LOCALID=ART0002689234&lang=en 日本機械学会 本文データは学協会の許諾に基づきCiNiiから複製したものである