二冲程汽油机燃烧室挤流和放热规律的研究

Study on Combustion Chamber Squish Velocity and Heat Release in a Moped 2-stroke Engine

为改善无簧片阀小型二冲程汽油机外特性高速工况的性能,作者通过燃烧室挤流和紊流燃烧的分析与试验,从理论上和实践中证实,正确选择燃烧室尺寸和形状,可以加强压缩冲程烧燃室内气体的流动和扰动,使主燃期的放热速率加快。

For improving the high speed performance at full throttle condition, analysis and experimental test of combustion chamber squish and turbulent combustion are carried out by the authors.The test results show that if select the right dimension & configuration of chamber the heat release rate of main combustion period will be increased by enhancing the gas flow and gas turbulence in compression stroke.There- by,the power output will be raised and fuel economy improved.