不同海拔高度硅油风扇离合器对发动机性能影响的研究  

Influence of Silicon-Oil Fan Clutch at Different High Altitudes on Engine Performances

作　　者：刘瑞林[1] 孙武全[1] 岳新莉[2] 赵传利[1] 宋兰庭[1] 吴晓[1] 

机构地区：[1]军事交通学院汽车工程系,天津300161 [2]天津一汽夏利汽车股份有限公司内燃机制造分公司,天津300073

出　　处：《内燃机学报》2004年第6期510-513,共4页Transactions of Csice

摘　　要：在内燃机风扇离合器高海拔(低气压)模拟试验台上,研究了不同海拔高度(0km～5km)下硅油风扇离合器的分离、结合特性,以及对发动机性能的影响。研究结果表明:随着海拔高度的增加,发动机输出转矩和功率下降、烟度排放增加。燃油消耗率在小负荷时增加较多,在大负荷时增加较少。硅油风扇整个分离与结合时间呈现减小趋势。硅油风扇转速在小负荷时变化不明显,在大负荷时将逐渐降低。The separating and combining characteristics of silicon-oil fan clutch and its influence on engine performances were investigated in an engine testing bench where the altitude was simulated from 0 km to (5 km). The results show that increasing altitude will decrease engine torque and power, increase engine exhaust smoke. It is shown that fuel consumption will increase higher at low load than that at high load condition. Meanwhile, the time for separating and combining of silicon-oil fan clutch gives a decreasing tendency. The variation of fan rotating speed is little at low engine load but gradually decreases at high engine load.

关 键 词：硅油风扇离合器 海拔高度 发动机性能 

分 类 号：TK421.28[动力工程及工程热物理—动力机械及工程]