Texture-induced effects causing reduction of friction in mixed lubrication for twin land oil control rings

被引:11
作者
Soderfjall, Markus [1 ]
Larsson, Roland [1 ]
Marklund, Par [1 ]
Almqvist, Andreas [1 ]
机构
[1] Lulea Univ Technol, Div Machine Elements, SE-97187 Lulea, Sweden
基金
瑞典研究理事会;
关键词
Cylinder liner; engine; piston ring; surface texture; simulation; PISTON-RING; HYDRODYNAMIC LUBRICATION; LINER; SURFACES; MODEL; SIMULATION; CONTACTS;
D O I
10.1177/1350650117709152
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
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.
引用
收藏
页码:166 / 178
页数:13
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