摘要
论述了发动机低温冷启动的危害和预热启动的必要性。介绍了一种泵循环机体电预热器的结构和原理。该预热器功率可达1 500W,与同类设计相比,预热速度更快。在一台1.6L排量汽油发动机所做的预热启动试验表明,在-15℃的环境温度下使用该预热器可把机体在40m in内预热到40℃以上,使预热时间缩短80%;与冷启动相比,可使怠速暖机时间缩短90%,每次启动可降低耗油量约0.4L;铝质油底壳可改善对机油的预热效果。
A new pump-circulation plug-in engine block heater is presented with its structure and working principle described. The heater has a power of 1500W so can warm up the engine block quicker than its counterparts. The preheating start test on a 1.6L gasoline-fueled engine shows that the heater can warm up the engine block to above 40℃ in 40 min. at an ambient temperature of - 15℃ and can reduce the preheating period by 80%. Compared with cold start, it can reduce the idling warm-up period by 90% and the fuel consumption in one start by about 0.4L. In addition, it also shows that using aluminum oil sump can improve the oil preheating effect.
出处
《汽车工程》
EI
CSCD
北大核心
2007年第2期170-173,共4页
Automotive Engineering
关键词
发动机机体
预热器
预热启动
节能
Engine block
Heater
Preheating start
Energy saving
