ZHANG Chang-ling1, HUANG Yin-yu1, WANG Pei2, ZHANG Zheng2
(1. Beijing BITEC Co. Ltd., Beijing 100081, China;2. School of Machine and Vehicle, Beijing Institute of Technology, Beijing 100081, China)
Abstract： The cycle fuel injection quantity is accurately measured for electronic unit pump (EUP) operating at high, middle and low speeds by using displacement method based on EFS instantaneous mono-injector qualifier. On the basis of the experimental data about fuel injection quantity and fuel pressure, the variation of inconsistency in fuel injection quantity of EUP and the influence factors in different operating conditions are concluded. The results show that the inconsistency is lowest in maximum torque condition, while on the start and maximum power conditions, it is higher.
Key words： diesel engine; fuel injection quantity; electronic unit pump (EUP)
CLD number： TK423 Document code： A
Article ID： 1674-8042(2014)04-0074-05 doi： 10.3969/j.issn.1674-8042.2014.04.014
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电控单体泵循环喷油量测量方法及分析
张长岭1， 黄印玉1， 王沛2， 张峥2
（1. 北京比特英泰动力技术有限公司， 北京 100081； 2. 北京理工大学 机械与车辆学院， 北京 100081）
摘要:基于先进的EFS瞬时喷油量测量仪， 采用位移法分别对电控单体泵不同转速工况进行循环喷油量的精确测量。 依据循环喷油量及喷油压力的试验数据， 得到了电控单体泵喷油量不一致性变化规律以及不同转速下的主要影响因素。 分析结果表明， 在最大扭矩工况， 各单体泵循环喷油量不一致性最低， 而启动工况和最大功率工况的不一致性较高。
关键词:柴油机； 循环喷油量； 电控单体泵
引用格式：ZHANG Chang-ling, HUANG Yin-yu, WANG Pei, et al. Measurement and analysis of cycle fuel injection quantity for electronic unit pump. Journal of Measurement Science and Instrumentation, 2014, 5(4): 74-78. ［doi: 10.3969/j.issn.1674-8042.2014.04.014］
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