Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Steady Flow Characteristics of Flow-Intensifying Valve Configurations

유동 강화형 밸브의 형상에 따른 정상 유동 특성

  • 최수진 (부산대학교 대학원 기계공학과) ;
  • 류기현 (부산대학교 대학원 기계공학과) ;
  • 전충환 (부산대학교 기계공학부, 부산대학교 기계기술연구소) ;
  • 장영준 (부산대학교 기계공학부, 부산대학교 기계기술연구소)
  • Received : 1998.02.27
  • Published : 1999.02.01
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Abstract

The flow characteristics of 2-valve and 4-valve cylinder heads with various blocked-valve were experimentally investigated in a steady flow rig. Effects of the blocked-valve configurations on flow coefficient, swirl and tumble intensity are studied. Compared to the conventional valve, the blocked valve in both cylinder heads have the much lower flow coefficient and the much higher intensity of swirl and tumble. Under the same size of blockage, the value of flow coefficient and swirl(or tumble) intensity were varied according to the position of blockage. Throughout these steady flow test the optimized positions of blockage in both cylinder heads were determined.

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