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 ›› 2021, Vol. 46 ›› Issue (17): 80-83.DOI: 10.16638/j.cnki.1671-7988.2021.017.023

• 设计研究 • 上一篇    下一篇

某发动机张紧器故障原因分析及前端轮系优化

曾 超 1,2，王俊然 1,2，刘伦伦 1,2，王景新 1,2，尚嘉丽 1,2   

  1. 1.内燃机可靠性国家重点实验室，2.潍柴动力股份有限公司
  • 出版日期:2021-09-15 发布日期:2021-09-15
  • 通讯作者: 曾 超
  • 作者简介:曾超，硕士，工程师，就职于潍柴动力股份有限公司， 从事内燃机的开发与应用研究工作。

Analysis of Tensioner’s Malfunction and Optimization on Engine Front End Accessory Drive System

ZENG Chao1,2 , WANG Junran1,2 , LIU Lunlun1,2 , WANG Jingxin1,2 , SHANG Jiali1,2   

  1. 1.State Key Laboratory of Engine Reliability, 2.Weichai Power Co., Ltd., Shandong Weifang
  • Online:2021-09-15 Published:2021-09-15
  • Contact: ZENG Chao

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摘要： 针对某发动机空调-发电机层自动张紧器故障率高问题，将其与风扇-水泵层轮系进行对比分析，张紧器故 障率高是由张紧臂摆角过大导致的。通过优化，将空调-发电机层轮系由曲轴驱动改为风扇托架驱动，通过计算优 化后空调-电机层轮系的张紧臂摆角降低到 0.5 °以下，并通过市场验证，证实了方案的有效性。

关键词: FEAD 系统；自动张紧器；张紧臂；激励源；阻尼比

Abstract: Aiming at the high failure rate of the automatic tensioner in the air-conditioner-generator gear train of an engine, it is found that the high failure rate of the tensioner is caused by the excessive swing angle of the tensioner arm by comparing it with the fan-pump gear train. Through optimization, the air-conditioner and generator gear train was changed from crankshaft drive to fan carrier drive. After calculation, the swing angle of the tensioning arm of the air-conditioner and generator gear train was reduced to less than 0.5 °, and the validity of the scheme was verified by market verification.

Key words: Front end accessory drive system; Automatic tensioner; The tension arm; Excitation source; Damping ratio