小形ニサイクル・メタノール機関の性能に及ぼす諸因子の影響

概要

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The engine performances and exhaust gas characteristics of methanol-fueled two-cycle engines were investigated. The operating conditions such as engine speed, ignition time, throttle valve opening, air fuel ratio, and compression ratio were widely varied to operate the carbureted methanol engine. Furthermore, the electric-controlled fuel injection nozzle which is installed at the scavenging port was employed to operate the methanol engine. As a result, at the operating field of high engine speed and lean mixture, the brake thermal efficiency with the best ignition time of the two-cycle engine was compared with that of a four-cycle engine, and at the above-mentioned operating conditions, the combustion variations and the harmful exhaust emissions of the two-cycle methanol engine showed relatively low levels.
社団法人日本機械学会の論文
1990-10-25