2012•한국자동차공학회 부문종합 학술대회Requires access
디젤엔진의 터보랙에 대한 실험적 연구
박성호, 장길상, 이준호, 오광철, 고성석, 최재권, 지용준
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Abstract
Improving the performance and the fuel economy of an engine, the reduction of engine size is considered by using a turbocharger or supercharger. But the turbocharged engines have worse transient response than the naturally aspirated engines because it takes a few seconds to get the turbocharger rotate up to high speed. So many technologies are developed to improve turbocharger response: VGT, Twin turbocharger, water-cooled intercooler, and so on. And there are many researches to analyze turbocharger transient phenomenon: optimizing the size of a turbocharger, flow capacity, efficiency, and moment of inertia. This research deals with the transient response of a diesel engine with variable geometry turbocharger and water-cooled intercooler. And it’s focused on intercooler size, WCAC pipe length, and cooling water temperature of the water-cooled intercooler.