Investigation of different piston ring curvatures on lubricant transport along cylinder liner in large two-stroke marine diesel engines
| Autor: | Peder Klit, Anders Vølund, H. Overgaard |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Piston ring lubrication
Materials science Mechanical engineering Flow continuity 02 engineering and technology Diesel engine law.invention Cylinder (engine) Diesel fuel Piston 0203 mechanical engineering law Position-sensing hydraulic cylinder Lubricant starvation Piston ring SDG 14 - Life Below Water Two-stroke engine Mechanical Engineering Surfaces and Interfaces Physics::Classical Physics 021001 nanoscience & nanotechnology Compression (physics) Surfaces Coatings and Films Perturbation of Reynolds equation 020303 mechanical engineering & transports Lubricant transport 0210 nano-technology Marine engineering |
| Zdroj: | Technical University of Denmark Orbit Overgaard, H, Klit, P & Vølund, A 2018, ' Investigation of different piston ring curvatures on lubricant transport along cylinder liner in large two-stroke marine diesel engines ', Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, vol. 232, no. 1, pp. 85-93 . https://doi.org/10.1177/1350650117744100 |
| ISSN: | 2041-305X 1350-6501 |
| DOI: | 10.1177/1350650117744100 |
| Popis: | A theoretical investigation of the hydrodynamic lubrication of the top compression piston ring in a large two-stroke marine diesel engine is presented. The groove mounted piston ring is driven by the reciprocal motion of the piston. The ring shape follows a circular geometry and the effect of changes in radii is analysed. A numerical model based on the finite difference method in 1D has been developed for solving Reynolds equation in combination with the load equilibrium equation together with flow continuity between the piston ring surface and liner for analysis of the lubricant transport. The cyclic variation throughout one stroke is presented for the minimum film thicknesses at different interesting locations of the piston ring surface together with the friction and the pressure distribution history. The aforementioned parameters have been investigated numerically. The numerical results are presented and discussed. |
| Databáze: | OpenAIRE |
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