Texture-induced effects causing reduction of friction in mixed lubrication for twin land oil control rings
| Autor: | Pär Marklund, Roland Larsson, Andreas Almqvist, Markus Söderfjäll |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Mechanical Engineering 02 engineering and technology Surfaces and Interfaces 021001 nanoscience & nanotechnology Diesel engine Surfaces Coatings and Films law.invention Cylinder (engine) Deglazing Piston 020303 mechanical engineering & transports 0203 mechanical engineering law Dimple Cavitation Lubrication Piston ring Composite material 0210 nano-technology |
| Zdroj: | Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 232:166-178 |
| ISSN: | 2041-305X 1350-6501 |
| Popis: | Piston rings are responsible for a major part of the frictional losses in a heavy-duty diesel engine. Such losses can be reduced by applying texture, such as dimples, on the cylinder liner surface. This paper investigates the effect of such texture on the friction between a land of the oil control ring and a textured cylinder liner via numerical simulation. A simulation model considering inertia and mixed lubrication together with a mass-conserving cavitation model is developed. The model is used to determine the dimple parameters that yield the lowest amount of friction for a specific oil control ring of a heavy-duty diesel engine. |
| Databáze: | OpenAIRE |
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