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 ›› 2025, Vol. 50 ›› Issue (18): 60-63,86.DOI: 10.16638/j.cnki.1671-7988.2025.018.011

• 设计研究 • 上一篇    

重型商用车冷却系统除气性能研究及优化

孙楷，苏宁斌，马涛，刘敬忠，白宁娜   

  1. 陕西汽车集团股份有限公司 技术中心
  • 发布日期:2025-09-16
  • 通讯作者: 孙楷
  • 作者简介:孙楷（1990－），男，硕士，工程师，研究方向为汽车冷却系统设计

Research and Optimization on Degassing Performance of Cooling System for Heavy Commercial Vehicle

SUN Kai, SU Ningbin, MA Tao, LIU Jingzhong, BAI Ningna   

  1. Technology Center, Shaanxi Automobile Group Company Limited
  • Published:2025-09-16
  • Contact: SUN Kai

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摘要： 针对某重型商用车在试验时出现的冷却系统除气性能不足问题，为提升重卡的冷却系 统除气效率，对该重型商用车冷却系统进行研究，分析冷却系统补偿管路布置对除气性能的 影响，提出一种补偿管路布置优化方案，并通过试验分析验证，提高了整车冷却系统除气效 率。研究结果表明，文章提出的补偿管路布置优化方案可以有效提升冷却液循环能力，将车 辆冷却系统除气时间缩短 66%以上，并杜绝可能出现的膨胀水箱反水现象，提高了冷却系统 除气效率和除气性能，极大提升了车辆动力系统的可靠性和经济性。

关键词: 重型商用车；冷却系统；膨胀水箱；加注除气试验

Abstract: In response to the insufficient degassing performance of the cooling system of a certain heavy commercial vehicle during the test, in order to improve the degassing efficiency of the cooling system of the heavy truck, the cooling system of this heavy commercial vehicle is studied. The influence of the layout of the cooling system compensation pipeline on the degassing performance is analyzed, and an optimized layout scheme of the compensation pipeline is proposed. Through experimental analysis and verification, the degassing efficiency of the entire vehicle's cooling system is improved. The research results show that the optimized layout scheme of the compensation pipeline proposed in the article can effectively enhance the circulation capacity of the coolant, reduce the degassing time of the vehicle cooling system by more than 66%, and eliminate the possible backflow phenomenon of the expansion tank. It improves the degassing efficiency and performance of the cooling system, and greatly enhances the reliability and economy of the vehicle power system.

Key words: heavy commercial vehicle; cooling system; expansion tank; filling and degassing test