Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Influences of Injector Nozzle Shape on Nozzle Internal Flow and Outlet Characteristics

인젝터 노즐 형상이 노즐 내부 유동 및 출구 특성에 미치는 영향

  • Kim, Changhyun (Department of Mechanical Engineering, POSTECH) ;
  • Lee, Kangsoo (Powertrain Thermo-Fluid CAE Team, Hyundai Motor Company) ;
  • Park, Jaein (Powertrain Thermo-Fluid CAE Team, Hyundai Motor Company) ;
  • Baek, Jehyun (Department of Mechanical Engineering, POSTECH)
  • 김창현 (포항공과대학교 기계공학과) ;
  • 이강수 (현대자동차 파워트레인 열유동 해석팀) ;
  • 박재인 (현대자동차 파워트레인 열유동 해석팀) ;
  • 백제현 (포항공과대학교 기계공학과)
  • Received : 2013.03.18
  • Accepted : 2013.05.21
  • Published : 2013.11.01
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Abstract

Diesel engine injector is used for spraying the fuel into the cylinder chamber. Complex phenomenon like cavitation occurs from small scale domain, highly pressurized condition and rapid injection. Flow inside the nozzle affects the whole engine performance including combustion and exhaust, therefore understanding the flow inside the injector nozzle is very important. In this paper, cylindrical and convergent-divergent nozzles are suggested for nozzle types and their influences on nozzle internal flow and nozzle outlet characteristics will be analyzed by changing their outlet diameters.

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References

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