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Flow visualization used PIV of hydrogen fueled free piston engine with uni-flow scavenging  

Cho, H.W. (Grad. School of Sungkyunkwan Univ.)
Yoon, J.S. (Grad. School of Sungkyunkwan Univ.)
Lee, J.T. (School of Mechanical Engineering, Sungkyunkwan Univ.)
Lim, H.S. (Hyosung Co.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.19, no.3, 2008 , pp. 182-188 More about this Journal
Abstract
In order to improve scavenging performance of free piston hydrogen fueled engine, this study estimate compatibility of uni-flow scavenging. The scavenging flow characteristics in the cylinder is investigated by flow visualization and PIV method. Consequently it has been found that the scavenging performance decreased with abnormal expansion of piston and delay of the exhaust valve opening timing. And the scavenging performance of exhaust valve located center in cylinder head is better than that of exhaust valve located side in cylinder head.
Keywords
free piston engine; visualization; uni-flow scavenging; PIV; abnormal expansion;
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Times Cited By KSCI : 1  (Citation Analysis)
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