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The Fundamental Study on Generation of High Turbulence at Vicinity of Ignition Timing
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 Title & Authors
The Fundamental Study on Generation of High Turbulence at Vicinity of Ignition Timing
Hong, Jae-Ung; Song, Yeong-Sik;
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 Abstract
The turbulence in the engine cylinder is generated by intake pressure and inertia effects during intake stroke, and is generated and decreased by piston compression effect during the compression stroke. The classified needed to generate high turbulence flow at vicinity of ignition timing. Therefore, A single-shot Rapid Intake Compression Expansion Machine (RICEM), which is able to realize the intake, compression, expansion or intake-compression stroke under high piston speed respectively, was manufactured and evaluated in order to find methods to generate high turbulence at around spark timing. It was found that the characteristics of RICEM such as reapperance, leakage, piston displacement with crank angle was corresponding to those of real engine and RICEM simulates not only high temperature and high pressure field but also flow patterns of the actual engine by increasing of pressure in intake line.
 Keywords
Rapid Intake Compression Expansion Machine;Turbulence Measurement;Hot Wire Anemometer;
 Language
Korean
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