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        자동차용 스크류형 과급기의 제어성능에 관한 연구

        배재일(Jaell Bae),배신철(SinChul Bae) 한국자동차공학회 2003 한국 자동차공학회논문집 Vol.11 No.6

        Boosting of engine power by using Turbo- or Super-charger is a solution to comply with CO₂-regulation in Europe. Turbo-charger is now playing a major role in the field of charging system thank to its technical advantages such as no demand of operation power from engine. A mechanically driven Super-charger, however, is now popular due to quick speed response to change of the driving mode - high engine torque even at low engine speed. Since Super-charger needs operation power from engine, it is difficult to improve its relatively higher fuel consumption than that of Turbo-charger. This negative point is still an obstacle to the wide use of Super-charger. This study aims to develop power control concept to achieve the minimization of operation power when it is not necessary to charge at idling or part load driving condition. A screw type Super-charger was modified in design partially and adapted an internal bypass valve and a bypass tube to control charging pressure at part load. The various control concepts show a possibility to reduce operation power of Super-charger and result in improvement of fuel consumption.<br/> <br/>

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