研制了一种既能减小压力振荡又能消除异物的特殊消声器。消声器旨在将制冷系统中管道的尺寸和成本降至最低。在一个外径为38 mm、长度为110 mm的消声器的铜膨胀室中组装了一个黄铜滤网。膨胀室的尺寸是根据以前的经验确定的，不考虑筛网的影响。屏幕的形状是由之前的仔细检查决定的。在小型热泵压缩机和液体分离器之间的注气管线中插入并测试了一个带有组装件的消声器原型。 试验结果表明，该消声器具有良好的衰减特性。引文:ASHRAE Transactions，1983年，第89卷，pt。新泽西州大西洋城1A

A special muffler with the dual functions of reducing pressure oscillations and eliminating foreign materials has been developed. The muffler is intended to minimize the size and cost of tubing in refrigerating systems.A brass straining screen was assembled in the copper expansion chamber of a muffler that had a 38 mm outer diameter and was 110 mm in length. The dimensions of the expansion chamber were determined, based on previous experience, without considering the effects of the screen. The shape of the screen was determined by previous careful examinations.A prototype muffler, with assembled parts, was inserted and tested in the gas injection line between the compressor and liquid separator of a small heat pump. Test results have shown that the proposed muffler has successful attenuating characteristics.