Development of Gasoline Direct Swirl Injector II

직접분사식 가솔린 선회분사기 개발에 관한 연구 II

  • 박용국 (경북대학교 대학원 기계공학과) ;
  • 이충원 (경북대학교 공과대학 기계공학부)
  • Published : 2001.11.01

Abstract

Generally fuel injection system using solenoid have some problems between control signal and mechanical movement like as time lag. Main purpose of the present study is to help the design optimization of GDSI for real engine application. We have adopted two different solenoid driving circuit, namely saturation and pick-hold type and have investigated experimentally the current, needle force, needle opening duration and injection quantity. The pick-hold type driving circuit surpassed a saturation type in the response time and pression control of injection quantity. Accordingly, Using characterization data of operating factors such as time constant, driving force and so on, can be evaluated and adjusted to obtain an optimum injector performance.

Keywords

References

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