非道路移动机械用发动机高原特性及性能提升研究  

Research on High Altitude Characteristics and Performance Improvement of Engines Used in Nonroad Mobile Machinery

作　　者：王政勇 苏欣 郭洪山 王正学 徐智 邸利青 Wang Zhengyong;Su Xin;Guo Hongshan;Wang Zhengxue;Xu Zhi;Di Liqing(FAW Jiefang Dalian Diesel Engine Co.,Ltd.,Dalian 116600)

机构地区：[1]一汽解放大连柴油机有限公司,大连116600

出　　处：《汽车工程师》2025年第2期14-21,共8页Automotive Engineer

摘　　要：采用高原台架模拟试验法对一款采用废气再循环(EGR)技术的满足非道路移动机械用柴油机排气污染物排放限值(第四阶段)标准的柴油机进行了高原特性研究,分析了该柴油机随海拔的升高在排放、动力性及燃油经济性方面的变化趋势,进一步探究了EGR技术在高原环境中对性能提升的积极作用,并基于该机型技术特点提出了高原性能优化标定方法,以提升高原动力性。This paper uses the high-altitude bench simulation test method to study the high-altitude characteristics of a non road four stage diesel engine with EGR technology route.It analyzes the changes in emissions,power and fuel economy of diesel engines with the increase of altitude in the EGR technology route,further explores the positive effect of EGR technology on performance improvement in high-altitude environments,and proposes a high-altitude performance optimization calibration method based on the technical characteristics of this model.Adopting this method helps to improve the engine’s high-altitude power performance.

关 键 词：非道路 柴油机 高原特性 废气再循环技术 

分 类 号：U464[机械工程—车辆工程]