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Visualization of Coolant Flow in the Cylinder Read and Exhaust Valve Bridge for the Countermeasure of Thermal Loading in the DOHC Gasoline Engine  

위신환 (성균관대학교 대학원)
이종태 (성균관대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.10, no.6, 2002 , pp. 1-10 More about this Journal
Abstract
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.
Keywords
Visualization of coolant flow; Exhaust valve bridge; Particle image velocimetry; Flow pattern; Cylinder head;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 DOHC 가솔린기관의 연소실 벽표면순간온도 및 비정상 열유속측정 및 해석-제2보:피스톤에 관한 연구 /
[ 위신환;류영;이종태 ] / 한국자동차공학회논문집
2 Coolant Flow in the Cylinder Head/Block of the Ford 2.5L DI Diesel Engine /
[ C.Arcoumanis(et al.) ] / SAE 910300
3 The Use of Flow Visualization and Computational Fluid Mechanics in Cylinder Head Cooling Jacket Development /
[ L.Kevin ] / SAE 891897
4 DOHC 가솔린기관의 연소실 벽표면순간온도와 비정상열유속의 측정 및 해석-제1보:실린더헤드에 관한 연구 /
[ 조진우;류영;이종태 ] / 한국자동차공학회논문집   과학기술학회마을
5 Numerical Simulation and Experimental Observation of Coolant Flow Around Cylinder Liners in V-8 Engine /
[ A.Yuzo ] / SAE 880109
6 엔진 냉각수 통로의 유동가시화 /
[ 오균;박준현;윤정의 ] / 한국자동차공학회 추계학술대회논문집
7 기관내 냉각수 유동형태가 연소실 벽면온도에 미치는 영향에 관한 연구 /
[ 민병순;최재권 ] / 한국자동차공학회논문집   과학기술학회마을
8 Vehicle Engine Development Trends under Future Boundary Conditions /
[ F.Pischinger ] / SAE 945001
9 DOHC 가솔린기관의 연소실 벽표면순간온도 및 비정상 열유속 측정 및 해석에 관한 연구-제3보: 실린더 라이너 /
[ 위신환;이종태 ] / 한국자동차공학회논문집   과학기술학회마을