Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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An Experimental Study on the Fuel Heating for Enhancing Fuel Atomization

가솔린엔진의 연료 미립화 향상을 위한 공급연료 가열에 대한 실험적 연구

  • Published : 2001.07.01
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Abstract

Poor fuel vaporization in gasoline engines causes the problem of HC emission during the cold start and warm-up period. This paper presents a strategy to improve fuel atomization during the warm-up phase. In this experiment, the heated fuel-rail system is constructed to investigate the effects of fuel heating on the average size of fuel droplets. The fuel atomization effects are examined by measuring Sauter Mean Diameter (SMD) of the fuel droplets from the three different types (two-hole, pintle, and six-hole) of injectors based upon a returnless heated fuel-rail system. The results show that the six-hole type injector is the most sensitive to fuel heating in terms of SMD among three different types of injectors.

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References

  1. SAE 950678 Analysis of Fuel Behavior in the SI Engine Start-Up Process M.J.Sampson;J.B.Heywood
  2. SAE 922170 Mixture Preperation in a SI Engine with Port Fuel Injection During Starting and Warm-Up J.W.Fox;K.D.Min;W.K.Cheng;J.B.Heywood
  3. SAE 930711 Effects of Port-Injection Timing and Fuel Droplet Size on Total and Speciated Exhaust HC Emissions J.Yang;E.W.Kaiser;W.O.Siegl
  4. SAE 955074 Mixture Preperation and HC Emissions of a 4-Valve Engine with Port Fuel Injection During Cold Starting and Warm-Up K.Takeda;T.Yagashi;K.Sekiguchi;K.Saito;M.Imatake
  5. SAE 930710 Cold Start Performance of an Automotive Engine Using Prevaporized Gasoline R.J.Boyle;D.J.Boam;I.C.Finaly
  6. SAE 950068 Slow Heating Process of a Heated Pintle-Type Gasoline Fuel Injector J.L.Chen;Grant Chen
  7. SAE 950068 Gasoline Fuel Injector J.L.Chen;Grant Chen
  8. Handbook of Flow Visualization W.J.Yang