摘要
Aim To control the noise of two stroke engine Methods On the basis of noise identification,a new muffler and acoustic shield were designed,Results the car's pass-by noise below the national limit Conclusion through proper noise controlling measures,the pass-by noise of two stroke engines could be reduced under national permitting limit.
目的控制两冲程发动机汽车噪声，方法在对汽车进行噪声源识别的基础上改进消声器设计，设计安装隔声罩．结果汽车车外加速噪声满足国家标准。结论采取合理的噪声控制措施可以将两冲程汽车噪声控制在规定范围内，达到与四冲程发动机相当的水平。
