摘要
通过试验对比,采用闭式和开式抽气方式对摩托车工况法排放测试结果均有一定影响,受影响的主要是怠速和15 km/h工况。其中闭式抽气方式影响较大,影响程度大小分别是怠速工况,其次是15 km/h工况,而在发动机转速较高的32 km/h、35 km/h和50 km/h工况时影响较小。
A comparative test shows that the results of the mode emission tests made by the closed and open air extraction modes will be affected somewhat, with the major influence coming from the closed air extraction, sequentially the idle mode and then the 15 km/h mode and the less influence at the 32 km/h, 35 km/h and 50 km/h.
出处
《摩托车技术》
2009年第7期37-39,共3页
Motorcycle Technology
关键词
排气背压
闭式抽气
开式抽气
排放测试影响
Exhaust back pressure Closed air extraction Open air extraction Exhaust test effect
