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2001•International Journal of Vehicle DesignRequires access

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

Rıdvan Arslan, İrfan Karagöz, Ali Sürmen

Open publisher page 2 citations

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.

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What this paper is about

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.

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Available 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.

Key concepts: Camshaft, Valve timing, Volumetric efficiency, Aerodynamics, Engineering, Automotive engineering, Mechanical engineering, Control theory (sociology)

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