欢迎访问《兵工学报》官方网站,今天是 分享到:

兵工学报 ›› 2015, Vol. 36 ›› Issue (12): 2217-2223.doi: 10.3969/j.issn.1000-1093.2015.12.002

• 论文 • 上一篇    下一篇

某柴油机高原使用供油系统调整研究

任兆欣1,2, 苏铁熊2, 王增全1, 于宝金1, 丁技峰1   

  1. (1.中国北方发动机研究所, 天津 300400; 2.中北大学 机电工程学院, 山西 太原 030051)
  • 收稿日期:2015-06-05 修回日期:2015-06-05 上线日期:2016-02-02
  • 作者简介:任兆欣(1973—), 男, 研究员级高级工程师

Study of Adjusting Diesel Fuel Supply System in Plateau Area

REN Zhao-xin1,2, SU Tie-xiong2, WANG Zeng-quan1, YU Bao-jin1, DING Ji-feng1   

  1. (1.China North Engine Research Institute (Tianjin), Tianjin 300400,China;2College of Mechatronic Engineering,North University of China,Taiyuan 030051,Shanxi,China)
  • Received:2015-06-05 Revised:2015-06-05 Online:2016-02-02

摘要: 针对高原条件下柴油机使用暴露出的气缸盖燃烧室烧蚀等可靠性问题,分别进行了不同喷油泵最大供油量和不同喷油器喷嘴结构参数下,柴油机整机性能高原模拟计算与试验研究,得出了高原环境下通过调节供油系统控制柴油机热负荷的方法。通过性能优化模拟计算与试验研究,提出了适当减小喷油泵最大供油量及采用增大喷孔数、减小孔径和减小喷雾锥角的喷油器的供油系统技术状态高原调整方案,降低了柴油机热负荷,提高了柴油机高原条件下的可靠性。采取所确定的供油系统调整方案后,海拔高度4 500 m时,柴油机功率降低27%,其他控制参数均在限制范围内,可满足车辆在高原地区的使用要求。

关键词: 动力机械工程, 柴油机, 高原, 供油量, 调整

Abstract: For the reliability problems of diesel engine in plateau area, such as cylinder head ablation and so on, the simulation investigation is made on the maximal fuel supply of injection pump and the different structures of injector nozzle. The effectiveness of the method to control the thermal load of engine in plateau environment is verified by adjusting the fuel supply parameters without modifying the engine structures. A plateau adjustment scheme of fuel supply system is presented, which includes decreasing the largest supply of the fuel pump properly, increasing the number of the jet holes, and reducing the diameter of jet holes and the spray angle of injector, by performance optimization experiment. The proposed scheme can be used to reduce the heat load of diesel engine and improve the reliability of diesel engine in plateau environment. The results show that the power output of diesel engine is dropped by 27% at high altitude of 4 500 m, and other control parameters are in the limited range.

Key words: power machinery engineering, diesel, plateau area, fuel supply, adjustment

中图分类号: