Open AccessOpen Access


Thermo-Mechanical Analysis of the Sealing Performance of a Diesel-Engine Cylinder Gasket

Xulan Wang1,*, Zezhong Chen1, Changzhen Liu1, Wei Ren2, Bo Wu1, Shude Ji1, Xiaofei Chen1, Shijie Wen1, Yonggang Hao1

1 System Engineering Institute, China North Engine Research Institute, Tianjin, 300400, China
2 Engine Department, BAIC Motor Co., Ltd., Beijing, 101106, China

* Corresponding Author: Xulan Wang. Email:

(This article belongs to this Special Issue: Recent Advances in Fluid Mechanics and Thermal Sciences)

Fluid Dynamics & Materials Processing 2021, 17(4), 821-831.


Taking the combustor composite structure of a high-strength diesel engine as the main research object, dedicated tests have been conducted to verify the accuracy of three distinct cylinder gasket pressure simulation models. Using the measured cylinder gasket compression rebound curve, a gasket unit has been designed and manufactured. For this unit, the influence of the bolt pretension, cylinder body and cylinder head material on gasket sealing pressure has been investigated systematically in conditions of thermo-mechanical coupling. The results show that the bolt pretension force is one of the most important factors affecting the cylinder gasket sealing pressure. The change of the body material has little effect on this pressure. The cylinder gasket seal pressure decreases progressively with the reduction of the elastic module of the cylinder head material.


Cite This Article

Wang, X., Chen, Z., Liu, C., Ren, W., Wu, B. et al. (2021). Thermo-Mechanical Analysis of the Sealing Performance of a Diesel-Engine Cylinder Gasket. FDMP-Fluid Dynamics & Materials Processing, 17(4), 821–831.

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • 1512


  • 1520


  • 0


Share Link