小型汽油机排气消声器有效容积与消声效果的研究

The Study of Exhaust Muffler Effective Volume and Silencing Effect of the Small Gasoline Engine

小型汽油机因结构尺寸小,安装使用的消声器有效容积也很小。消声器有效容积大小直接影响其消声性能,必须根据汽油机排量、转速、冲程等,合理确定消声器有效容积。论文以国产WB530BDL小型割草机用发动机排气消声器为例,通过分析计算、改进设计、实验测试,说明消声器有效容积对其消声量的影响。

The effective volume muffler installation is small because of the small size of its gasoline engine structure. Muffler effective volume size will directly affect their performance muffler. We can determine the effective volume muffler reasonably based on the gasoline engine displacement, speed, stroke, etc.. In this paper, I took domestic WB530B-DL small mower engine exhaust muffler as an example, indicating effective volume muffler impact on its content by analysis and calculation,improving the design, and experimental testing.