Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Verification and Hydraulic Model Development of 3rd Generation Piezo Injector for CRDi System in Passenger Vehicle

승용CRDi용 3세대 피에조 인젝터 유압해석모델 개발 및 검증

  • Jo, Insu (Department of Mechanical Engineering, Graduate School, Soongsil University) ;
  • Jeong, Myoungchul (Department of Mechanical Engineering, Graduate School, Soongsil University) ;
  • Lee, Jinwook (Department of Mechanical Engineering, Soongsil University)
  • 조인수 (숭실대학교 대학원 기계공학과) ;
  • 정명철 (숭실대학교 대학원 기계공학과) ;
  • 이진욱 (숭실대학교 기계공학과)
  • Received : 2013.01.03
  • Accepted : 2013.01.14
  • Published : 2013.07.01
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Abstract

Performance of DI diesel engine with high fuel injection method is directly related to its emission characteristics and fuel consumption. In this study, numerical model of 3rd generation piezo-driven injector was designed to analyze the hydraulic performance. Also the injection response characteristics was investigated by using the AMESim simulation code. From this study, it was shown that 3rd generation piezo-driven injector had a faster response and had better control capability due to its hydraulic bypass-circuit that has potential to higher hydraulic characteristics and improved accuracy of injected fuel quantity.

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References

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