Influence of Variable Swirl Intake Manifolds for DI Diesel Engine on in-Cylinder Air Motion

Abstract:

This paper developed a new design of variable swirl intake manifolds for four-valve DI diesel engine by setting swirl control valves in the intake manifolds. The 3-D numerical model under the same experimental condition was established and particular flow information in intake manifolds and cylinder was achieved. Influence of variable swirl intake manifolds on intake flow characteristics and in-cylinder swirl characteristics were analyzed. The simulation results show that the swirl intensity in cylinder can be tuned by this device. The swirl intensity increases gradually with decrease flow coefficient and it can meet the requirements of swirl intensity for different operating conditions.

• Periodical: Applied Mechanics and Materials (Volumes 130-134)
• Pages: 95-98
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.130-134.95
• Online since: October 2011
• Authors: Xi Xin, De Xin Liu, Liu Qing Wang, Li Wang
• Keywords: Computational Fluid Dynamics (CFD), Four-Valve DI Diesel Engine, Swirl Control Valves, Three-Dimensional Numerical Simulation, Variable Swirl Intake Manifolds

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