通过理论计算和分析确定了噪声频谱图中各噪声峰值对应的噪声源及其传递路径，指明了压缩机降噪的主要目标。

Through theory computation and analysis, the source of noise and transfer paths corresponding to every noise peak value are confirmed, the main aim to decreasing noise is pointed out.

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本发明降噪壳体结构简单，制作方便，具有良好的降噪效果，适合于对各种制冷压缩机的壳体进行改进。

The noise reduction shell is provided with simple structure, convenience operation, and good efficiency for noise reduction and applied in improving the shell of various refrigerating compressor.

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