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http://dx.doi.org/10.3795/KSME-B.2004.28.1.059

A Study on the Characteristics of Swirl Flow in Transparent Engine with Different Swirl Ratio and Piston Configuration for Heavy-duty LPG Engine  

Lee, Jin-Wook (한국기계연구원 청정동력기계그룹)
Kang, Kern-Yong (한국기계연구원 청정동력기계그룹)
Min, Kyoung-Doug (서울대학교 기계항공공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.28, no.1, 2004 , pp. 59-65 More about this Journal
Abstract
The configuration of intake port and piston is a dominant factor of inlet air flow and mixture formation in an engine cylinder, resepectively. This study has analyzed intake port and piston characteristics for swirl flow of a heavy-duty LPG engine. As an available technology to optimize intake port, the steady flow rig test has been applied for measuring swirl ratio and mean flow coefficient. And we measured the mean velocity and turbulence intensity of swirl flow under motoring condition in transparent engine cylinder by backward scattering LDV system. From these results, the piston and cylinder head with a good evaluated swirl flow characteristics were developed and adapted fur a 11L heavy-duty engine using the liquid phase LPG injection (LPLI) system. The obtained results are expected to be a fundamental data for developing intake port and piston.
Keywords
Heavy-duty LPG Engine; Swirl Flow; Swirl Ratio; Intake Port; Piston Configuration; LDV;
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  • Reference
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