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The Effect of the Embedded WGV on the Engine Performance for a 2-liter Turbo-charged Gasoline Engine
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 Title & Authors
The Effect of the Embedded WGV on the Engine Performance for a 2-liter Turbo-charged Gasoline Engine
Jang, Jongkwan;
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The turbocharger, to decrease the harmful exhaust gas(CO, HC and etc.) and emission as well as the increase of the engine output, would be an useful method for engine downsizing. Therefore the thermal endurance of turbine blade, the lubrication of turbine shaft and the engine knock according to the supercharge of the inlet air, had been studied. And there had been much progress in these research tasks to be achieved a breakthrough. But a study on the built-in WGV of a gasoline engine for a passenger car which may effect on the engine performance, is few. In this paper, the effect of the embedded WGV on the engine performance was performed through the endurance test, which was conducted more than 300 hrs using the 4 stroke, 1998 cc, water-cooled engine. To sum up the major results, there were an abrasion in the area of the WGV head edge and the thermal deformation on the WGV head face, These phenomena led to reducing the boost pressure which caused the reduction in the volumetric efficiency of the engine. It resulted in decreasing the engine power gradually during the life cycle of the embedded WGV.
VGT;WGT;WGV;Boost pressure;Duty control rate;Durability test;Edge abrasion;Thermal deformation;
 Cited by
J. W. Chung, N. H. Kim, C. H. Lim and K. Y. Kim, "Development of an EGR Model for a WGT Diesel Engine," KSAE Annual Conference Proceedings, pp.276-277, 2014.

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B. G. Park, S. W. Park, D. K. Park, S. Y. Kim, J. O. Jeong and J. K. Jang, "Metal Injection Molding Analysis of WGV Head in a Turbo Charger of Gasoline Automobile," Transactions of KSAE, Vol.23, No.4, pp.388-395, 2015.

J. K. Jang, "An Experimental Investigation of the Engine Performance Effects of WGV on a Turbo-charged Gasoline Engine," KSAE Annual Conference Proceedings, pp.67-74, 2015.