점화에너지 및 방전시간이 스파크 점화 기관의 성능에 미치는 영향

A Study on the Effects of Ignition Energy and Discharge Duration on the Performances of Spark Ignited Engines

  • 발행 : 2001.11.01

초록

An experimental investigation is proceeded to study on the relationship between spark ignition characteristics and the performances of an S. I. engine. The ignition parameters examined in this study are the ignition energy and discharging duration. The combustion pressure and exhaust gas are measured during the experiment. From the measured data of cylinder pressure, the heat release rate, the mass fraction burned, and the COV of IMEP are calculated. The dwell time and the injection time are varied. A single cylinder engine and a 30kW dynamometer are employed. Four different kinds of ignition systems are assembled, and one commercial ignition system is adopted. The experimental results show that the ignition energy is increased as the dwell time extended until the ignition energy is saturated. The higher ignition energy is effective in achieving the laster burning velocity and less producing HC emission. However, when the amount of ignition energy is similar, while the discharge duration becomes longer, the burning velocity is reduced but the engine operation becomes stable in terms of the COV of IMEP.

키워드

참고문헌

  1. SAE 870549 The Effect of Ignition System Power on Fast Burn Engine Combustion R.W.Anderson
  2. SAE 850076 Lean Air-fuel Ignition system comparison in a Fast-burn Engine R.W.Anderson;J.R.Asik
  3. SAE 850075 Stabilized Combustion in a Spark Ignited Engine Through a Long Spark Duration M.Nakai;Y.Nakagawa;K.Hamai;M.Sone
  4. 자동차공학회논문집 v.7 no.2 희박연소기관에서 고점화 에너지에 의한 기관 성능 향상에 관한 연구 송정훈;선우명호;김우태
  5. Internal Combustion Engine Fundamentals J.B.Heywood
  6. Internal Combustion Engines C.R.Ferguson
  7. SAE 1999-01-0548 Spark Advance for Optimal Efficiency L.Eriksson
  8. SI 기관의 초기화염 생성 모델과 점화장치가 기관성능에 미치는 영향 송정훈