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AN EXPLORATORY STUDY OF THE EMISSION REDUCTION TECHNOLOGIES COMPLIANT WITH SULEV REGULATIONS

Kim, In Tak   (Research & Development Division of Hyundai Motor Company & Kia Motors CorporationCC0003089  ); Lee, Woo Jik   (Research & Development Division of Hyundai Motor Company & Kia Motors CorporationCC0003089  ); Yoon, Jong Seok   (Research & Development Division of Hyundai Motor Company & Kia Motors CorporationCC0003089  ); Park, Chung Kook   (Research & Development Division of Hyundai Motor Company & Kia Motors CorporationCC0003089  );
  • 초록

    This paper describes the development of THC reduction technologies compliant with SULEV regulations. Technologies embodied by the developmental work include improvement of fuel spray atomization, quick warm-up through coolant control shut of, and acceleration of fuel atomization for the fast rise of cylinder head temp inside the water jacket as well as the improvement of combustion state. The technologies likewise entail reduced HC while operating in lean A/F condition during engine warm-up with the cold lean burn technology, individual cylinder A/F control for improvement of catalytic converting efficiency, after-treatment such as thin-wall catalyst, HC-adsorber and EHC and etc, through vehicle application evaluation in cold start. We carried out an experimental as well as a practical study against SULEV regulations, and the feasibility of adopting these items in vehicle was likewise investigated.


  • 주제어

    SULEV .   Coolant control .   Air-shrouded injector (ASI) .   Improved exhaust manifold .   Thin-wall catalyst .   HC-adsorber .   Hybrid catalyst .   Electrically heated catalyst (EHC).  

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