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Yano, Hiroyuki
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Improvement of Middle Engine Speed Torque By Using Resonance Effect For Restricted 600cc Four-Stroke Engine

Sophia University-Makoto Ito, Hiroyuki Yano, Yasuhumi Oguri, Takashi Suzuki
  • Technical Paper
  • 2007-32-0115
Published 2007-10-30 by Society of Automotive Engineers of Japan in Japan
This research focuses on the improvement of torque at the middle engine speed of a motorcycle engine with resonance supercharging. The resonance supercharging intake system is realized with a simple modification to the intake collector geometry. A one-dimensional computational model is employed to simulate the pressure wave propagation and to optimize the configuration of it. The experiments confirmed the increase in the engine torque for the entire operation range and the maximum gain of 33% was achieved at 8500rpm. The resonance effect is further investigated through three-dimensional simulation, in which the intake airflow rate, static pressure distribution are analyzed.
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