主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2024, Vol. 49 ›› Issue (16): 51-55.DOI: 10.16638/j.cnki.1671-7988.2024.016.009

• 设计研究 • 上一篇    

汽车发动机电控燃油喷射系统优化设计

孙文福   

  1. 三亚学院 新能源与智能网联汽车学院
  • 发布日期:2024-08-23
  • 通讯作者: 孙文福
  • 作者简介:孙文福（1979－），男，硕士，教授，研究方向为动力机械性能分析及结构优化设计，E-mail:swenfu@qq.com。
  • 基金资助:
    海南省自然科学基金资助项目（521RC601）；三亚学院虚拟教研室试点建设项目（SYJZXN202302）。

Optimization Design of Electronic Fuel Injection System for Automobile Engine

SUN Wenfu   

  1. School of New Energy and Intelligent Networked Automobile, Sanya University
  • Published:2024-08-23
  • Contact: SUN Wenfu

PDF

摘要： 汽车发动机燃油喷射系统的结构形式及特性直接影响发动机的性能，对燃油系统的计 算分析是改进发动机性能的重要方法。在分析发动机电控燃油喷射系统结构和部件数学模型 的基础上，建立了其仿真模型，对燃油系统结构参数进行了优化匹配计算。研究结果表明， 柱塞直径及升程为 Φ23×24、喷孔数及孔径为 7×Φ0.45 时具有较好的喷油特性，电磁阀泄油口 流通面积、通电时刻及时长对燃油系统的喷油特性也有较大影响；优化后的结构参数对于发 动机燃油系统设计具有重要的参考价值。

关键词: 汽车发动机；仿真模型；喷油特性；优化设计

Abstract: The structural form and characteristics of the fuel injection system in automobile engines directly affect the performance of the engine, and the calculation and analysis of the fuel system is an important method to improve engine performance. On the basis of analyzing the structure and mathematical models of the electronic fuel injection system components of the engine, a simulation model is established, and the structural parameters of the fuel system are optimized and matched. The research results indicate that the diameter and lift of the plunger are Φ23×24, the number and aperture of spray holes are 7×Φ0.45, it has good fuel injection characteristics, and the flow area of the solenoid valve drain port and the timely duration of power on also have a significant impact on the fuel injection characteristics of the fuel system; the optimized structural parameters have important reference value for the design of engine fuel systems.

Key words: Automobile engine; Simulation model; Fuel injection characteristics; Optimization design