JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2011, Vol. 41 ›› Issue (1): 162-166.

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Simulating the effects of an intake resonator on volumetric efficiency of a gasoline engine

MA Zong-zheng, CHENG Yong*   

  1. School of Energy and Power Engineering, Shandong University, Jinan 250061, China
  • Received:2010-02-04 Online:2011-02-16 Published:2010-02-04

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Abstract:

The intake resonator system is one of the useful ways to improve the power performance of the engine. Based on the validation of the simulation model, the effects of the resonator parameters, such as resonant volume, resonator pipe length and diameter, on the volumetric efficiency were studied by the BOOST simulation code. The results showed that with the resonator the volumetric efficiency increased by 2％ around the resonance speed. The maximum volumetric efficiency point could be changed by modifying the resonance volume, resonance pipe diameter or length, and the speed corresponding to maximum volumetric efficiency was 50r／min higher than the resonance speed. The volumetric efficiency of the engine could be improved if the cross sectional area of the resonance pipe was close to the effective charging area. Too large a resonance volume or too long a resonance pipe could reduce the effect of the resonator.

Key words: gasoline engine, intake resonator, volumetric efficiency, simulation

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