Title: Theoretical and experimental investigation of effect of valve timing on volumetric efficiency in an IC engine

Authors: Ridvan Arslan, Irfan Karagoz, Ali Surmen,

Addresses: Uludag University, School of Higher Education, Automotive Programme, Bursa, Turkey. Uludag University, Department of Mechanical Engineering, Bursa, Turkey. Uludag University, Department of Mechanical Engineering, Bursa, Turkey

Abstract: Volumetric efficiency is a typical parameter that is effected by almost all constructive, aerodynamic and thermal parameters through a simple or complicated relation. In this study, the effect of valve timing, which is a highly dynamic parameter, has been investigated. Beside the original one, thirteen new camshafts have been produced without changing the angles that valves are open. New camshafts are then produced by shifting the valve-open period. All camshafts are used to determine volumetric efficiency at various engine speeds.

Keywords: volumetric efficiency; variable valve timing.

DOI: 10.1504/IJVD.2001.001945

International Journal of Vehicle Design, 2001 Vol.26 No.2/3, pp.298-307

Published online: 14 Dec 2003 *

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