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Experimental study on wear failure course of gas-valve/valve-seat in engine

  • Zhao Yun-cai Email author
  • Yan Hang-zhi 
Electro-Mechanical Engineering And Information Science

Abstract

The wear failure course of gas-valve/valve-seat in engine was investigated with a simulating tester. The results show that the failure of the contact conical surface is mainly caused by the elastic and plastic deformation and the fatigue micro-crack and spalling. The creep-deformation and corrosion atmosphere accelerated wear failure course at the high temperature. The wear failure course of the gas-valve/valve-seat in engine follows general wear rules of mechanical elements, but the rate of wear in the sharp wear stage is faster.

Key words

gas-valve/valve-seat wear failure course micro-crack fatigue spalling 

CLC number

TK413.44 

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References

  1. [1]
    Ootani T, Yahata N, Fujiki A, et al. Impact wear characteristics of engine valve and valve seat insert materials at high temperature [J]. JSME International Journal, 1996, 39(1): 115–122.Google Scholar
  2. [2]
    CHENG Shao-tong, WANG Zhi-zhao, CHENG Shu-ying, Analysis and improvement of losing efficacy of the diesel engine valve(1)[J]. Interal Combustion Engines, 2004, 35(2): 8–11. (in Chinese)MathSciNetGoogle Scholar
  3. [3]
    WANG Lin, LIU Zuo-min. The present situation of the failure mechanism of engine exhaust valvesin the world[J]. Journal of Wuhan University of Technology, 2000, 22(5): 83–88. (in Chinese)Google Scholar
  4. [4]
    Zhao R, Barber G C, Wang Y S, et al. Wear mechanism analysis of engine exhaust valve seats with a laboratory simulator [J]. Tribology Transactions, 1997, 40(2): 209–218.CrossRefGoogle Scholar
  5. [5]
    HAN Guo-xiong. Failure stimulation and quality improvement of air valve B-series engine [J]. Combustion Engine Matching Parts, 2003, 28(5): 39–41. (in Chinese)Google Scholar
  6. [6]
    ZHAO Yun-cai, LI Song-wen, LIU Jing-sheng. Experimental study on wear failure of gas-valve/valve-seat in engine [J]. Tribology, 2000, 20 (5): 386–389. (in Chinese)MathSciNetGoogle Scholar
  7. [7]
    ZHAO Yun-cai, GAO Cai-yun, LIU Jing-sheng. Experimental study on fatigue and creep-sliding at high temperature to gas-valve in engine [J]. Journal of Xiangtan Mining Institute, 1999, 14(2): 66–69. (in Chinese)Google Scholar
  8. [8]
    ZHAO Yun-cai. Experimental study on characteristic of tribology to the engine gas-valve [J]. Journal of Xiangtan Mining Institute, 1999, 14(3): 26–29. (in Chinese)Google Scholar

Copyright information

© Central South University 2005

Authors and Affiliations

  1. 1.School of Mechanical and Electrical EngineeringCentral South UniversityChangshaChina
  2. 2.Department of Mechanical EngineeringJiangxi University Science and TechnologyGanzhouChina

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