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在-35℃的低温试验环境下,冷冻柴油机、电瓶、柴油等相关试件并保温,研究了起动液、酒精喷灯、“起动液+曲轴箱空气加热器”、“进气预热器+电热塞”等起动方法的可行性。结果表明:喷起动液和“起动液+曲轴箱空气加热器”的辅助起动方法可使左进气温度、右进气温度、气缸盖温度有一定的升高,但不能辅助柴油机起动成功;酒精喷灯加热油底壳增加了润滑油的流动性,减小柴油机起动的摩擦阻力,从而促进了柴油机成功起动;“进气预热器+电热塞”同时加热进气的方式确保升高并维持进气温度,促使柴油机成功起动。进一步分析可知,进气加热和润滑油加热的方法更利于柴油机的低温起动。
In -35 ℃ low temperature test environment, refrigeration diesel engine, battery, diesel and other related samples and insulation, studied the starter fluid, alcohol torch, “starter fluid + crankcase air heater + Glow plug ”and other start-up method of feasibility. The results show that the start-up fluid and the auxiliary start-up method of “Starter + crankcase air heater” can make the left inlet air temperature, the right inlet air temperature and the cylinder head cover temperature rise a certain extent, but they can not assist the diesel engine start-up successfully ; Alcohol torch heating the oil pan increases the fluidity of the lubricant, reducing the frictional resistance of the diesel engine starting, thus contributing to the successful start of the diesel engine; “intake preheater + glow plug ” while heating the intake air way to ensure that High and maintain the intake air temperature, prompting the diesel engine to start successfully. Further analysis shows that the intake air heating and lubricating oil heating method is more conducive to low-temperature diesel engine start.