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A Flow Analysis for Improvement of the Loop Scavenging Performance of a Free Piston Linear Power System  

Yoon, Jae-Seong (Grad, School of Sungkyunkwan Univ.)
Cho, Hyoung-Wook (Grad, School of Sungkyunkwan Univ.)
Lee, Jong-Tai (School of Mechanical Engineering, Sungkyunkwan Univ.)
Lee, Yong-Gyun (Engine Tech Co., LTD)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.19, no.2, 2008 , pp. 139-144 More about this Journal
Abstract
The focus of this research is that the scavenging aspect of in-cylinder is visualized by the PIV method and its characteristic is analyzed so that the scavenging performance of the free piston hydrogen fueled engine can improve with loop scavenging. As the results, the piston of convex type shows the best scavenging performance among the presented pistons. In case of the abnormal expansion, the scavenging of area between cylinder head and cylinder wall doesn't operate well.
Keywords
free piston engine linear power system; improvement of scavenging performance; flow visualization;
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  • Reference
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