| 제목 |
DOHC 가솔린기관의 열부하대책을 위한 실린더헤드 및 국소 배기밸브 브릿지부의 냉각수 유동해석 |
| 분야 |
엔진 및 연소 |
| 언어 |
Korean |
| 저자 |
위신환(성균관대학교), 이종태(성균관대학교) |
| Key Words |
Visulization of coolant flow(냉각수 유동가시화), Exhaust valve bridge(배기밸브 브릿지), Particle image velocimetry(PIV기법), Flow pattern(유동양상), Cylinder head(실린더헤드) |
| 초록 |
As the preliminary stage for the countermeasure of thermal loading in miller cycle engine, coolant flows in the cylinder head of base engine including exhaust valve bridge were visualized and analyzed by using PIV technique. It was found that low coolant velocity regions were around exhaust valve bridge, around which stagnation of the coolant flow was observed due to the complex geometry configuration of water jacket. And velocity variation between each cylinder was remarkable. For the countermeasure of these, it is necessary to enhance coolant flow around exhaust valve bridge and to improve the deviation of coolant flow between each cylinder.{{br}} |
| 원문(PDF) |
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