INVESTIGATIONS ON WEAR AND FRICTION IN THE SI ENGINE VALVETRAIN

  • Marek WOŹNIAK Department of Vehicles and Fundamentals of Machine design, Lodz University of Technology, Poland
  • Cristina Florena BANICA Faculty of Mechanics and Technology, University of Pitesti, Romania
  • Mihai DIACONU Faculty of Mechanics and Technology, University of Pitesti, Romania
  • Gustavo OZUNA Department of Industrial Engineering and Systems, University of Sonora, Mexico
  • Piotr JÓŹWIAK Department of Vehicles and Fundamentals of Machine design, Lodz University of Technology, Poland
  • Krzysztof SICZEK Department of Vehicles and Fundamentals of Machine design, Lodz University of Technology, Poland
DOI: https://doi.org/10.35219/mtd.2020.4.02
Keywords: Camshaft bearings, gasket, friction, abrasion wear, lubrication system

Abstract

The engine valvetrain system operating under conditions of insufficient oil lubrication, caused by incorrect installation of the gasket between the block and the head, was tested. The aim of the analysis was to determine the wear intensity and resistance to motion in camshaft bearings. A model was developed that includes a camshaft, bearings, tappet-valve-spring subassemblies and a part of the lubrication system. It was used to determine the bearing loads and the amount of oil supplied. The volumetric wear of the camshaft journals and bearing covers was measured. For the estimated engine run, the wear rate and resistance to motion were compared for the cases of the engine with correct and incorrect lubrication.

Published
2021-01-12
How to Cite
WOŹNIAK, M., BANICA, C. F., DIACONU, M., OZUNA, G., JÓŹWIAK, P., & SICZEK, K. (2021). INVESTIGATIONS ON WEAR AND FRICTION IN THE SI ENGINE VALVETRAIN. Mechanical Testing and Diagnosis, 10(4), 12-23. https://doi.org/https://doi.org/10.35219/mtd.2020.4.02
Issue
Vol 10 No 4 (2020)
Section
Articles

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