Investigation of the top compression ring power loss and energy consumption for different engine conditions

IF 1.6 Q4 MATERIALS SCIENCE, COATINGS & FILMS

Tribology - Materials, Surfaces & Interfaces Pub Date : 2021-04-14 DOI:10.1080/17515831.2021.1907682

A. Zavos, P. Nikolakopoulos

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引用次数: 8

Abstract

ABSTRACT The engine power losses and sealing behaviour through compression rings have become a priority for engine manufactures in view of future stringent emissions standards. Historically, compression rings have great application in small road vehicles and high-performance engines. The sealing behaviour of the compression ring has a significant effect on generated friction. Therefore, the lubrication conditions in the compression ring-liner conjunction should be addressed. This study comprises ring-liner mixed hydrodynamics using a two-phase flow and a gas blow-by model. This is implemented to investigate the characteristics of a high-performance top compression ring for different engine conditions. Low, medium, and high driving speeds are examined according to world-wide harmonized light vehicles test cycle. Additionally, the impact of lubricant temperature and compression ring width on power loss and fuel consumption are investigated to display the better engine performance. GRAPHICAL ABSTRACT

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不同发动机工况下顶压环功率损失及能耗的研究

考虑到未来严格的排放标准，发动机的功率损失和压缩环的密封性能已成为发动机制造商的首要任务。从历史上看，压缩环在小型道路车辆和高性能发动机上有很大的应用。压缩环的密封性能对产生的摩擦有重要影响。因此，应解决压缩环-衬套连接处的润滑条件。本研究采用两相流和气吹模型进行环衬混合流体力学研究。这是为了研究高性能顶压环在不同发动机工况下的特性。低、中、高行驶速度按世界统一的轻型车测试周期进行测试。此外，还研究了润滑油温度和压缩环宽度对功率损失和油耗的影响，以显示更好的发动机性能。图形抽象

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来源期刊

Tribology - Materials, Surfaces & Interfaces MATERIALS SCIENCE, COATINGS & FILMS-

CiteScore

2.80

自引率

0.00%

发文量