基于AVL-BOOST的某二冲程汽油机气口关键参数的优化

Port parameters for the two-stroke gasoline engine to improve fuel efficiency has an important role to get a lot of attention. This paper established a certain-type three-dimensional model of two-stroke gasoline engine using CATIA5.0 firstly, then analyzing the key parameters of the gas ports, inspecting its rationality based on the main parameters value method of two-stroke gasoline engine air intake ,at same time setted up its calculation model by the way of AVL_BOOST, whose validity was verified via engine bench test results, finally putting forward reasonable parameter values and specific improvement programs. After optimization, effective power increased 4.2%, meanwhile fuel consumption was reduced by 5.27%.