Research on the applications of infrared technique in the diagnosis and prediction of diesel engine exhaust fault  

作　　者：Lv Shi-gui Yang Li Yang Qian 

机构地区：[1]Department of Power Engineering, Naval University of Engineering, Wuhan 430033, China

出　　处：《Journal of Thermal Science》2011年第2期189-194,共6页热科学学报（英文版）

摘　　要：This paper mainly introduces the basic principles,the methods and the applications of infrared technique in the diagnosis and prediction of diesel engine exhaust faults. The test-bed for monitoring diesel engine exhaust faults by thermal infrared imager has been designed. In different running conditions, the exterior surface radiation temperatures of the exhaust pipe of the 6135G-1 diesel engine have been measured by infrared imaging system. According to the principle of infrared temperature measurement, the real temperatures of the exterior surface of the exhaust pipe have been calculated. Based on the principle of heat transfer, the method of calculating the exhaust temperatures according to the exterior surface radiation temperatures of exhaust pipe measured by thermal infrared imager is built. The relationship between diesel engine exhaust temperatures and faults has been analyzed. It is shown that the application of infrared inspection and diagnosis to the identifying of diesel engine exhaust faults is feasible and effective.

关 键 词：INFRARED exhaust temperature infrared diagnosis diesel engine FAULT 

分 类 号：U464.172[机械工程—车辆工程] TK421.5[交通运输工程—载运工具运用工程]