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    Resistive suction muffler for refrigerant compressors
    2.
    发明授权
    Resistive suction muffler for refrigerant compressors 有权
    用于制冷压缩机的电阻吸入消声器

    公开(公告)号：US06840746B2

    公开(公告)日：2005-01-11

    申请号：US10188276

    申请日：2002-07-02

    Applicant: Steven Edwin Marshall ,  David Rex Gilliam ,  Timothy Michael Wampler ,  David Turner Monk

    Inventor： Steven Edwin Marshall ,  David Rex Gilliam ,  Timothy Michael Wampler ,  David Turner Monk

    IPC: F04B39/00 ,  F04B53/00

    CPC classification number: F04B39/0061 ,  F04B39/005 ,  Y10S181/403 ,  Y10S417/902

    Abstract: A resistive muffler attenuates sound generated by the gas intake and suction valve during compressor operation of a refrigerant compressor. The resistive muffler is assembled inline with the suction gas flow of the compressor and is positioned within the compressor housing. The resistive muffler attenuates the sound generated by the compressor during its operation as refrigerant gas is drawn into the compressor from an evaporator and passes through the resistive muffler in transit to the suction valve and hence to the region of the compressor where the gas is physically compressed. The resistive muffler includes a muffler housing having an intake end and an exhaust end. An acoustic foam assembly is incorporated into the muffler housing. The acoustic foam assembly is selected on the basis of its ability to absorb sound over a broad range of frequencies and is the muffler containing the acoustic foam is assembled within the compressor so that the sound does not bypass the muffler and transmit significant amounts of the sound to the compressor housing. The acoustic foam remains chemically inert when exposed to the compressor fluids at elevated temperatures of operation, and retains its ability to absorb sound over a broad range of frequencies even when saturated with compressor fluids. The foam assembly should also be able to withstand very large pressure fluctuations without experiencing deterioration.

    Abstract translation: 电阻式消声器在制冷剂压缩机的压缩机运行期间衰减由进气和吸入阀产生的声音。 电阻消声器与压缩机的吸入气流一起组装并且位于压缩机壳体内。 电阻式消声器在其运行期间衰减由压缩机产生的声音，因为制冷剂气体从蒸发器吸入压缩机中并且通过电阻消声器传送到吸入阀，并因此通过压缩机的被物理压缩的区域 。 电阻消声器包括具有进气端和排气端的消声器壳体。 声学泡沫组件结合到消音器壳体中。 基于其在宽频率范围内吸收声音的能力来选择声学泡沫组件，并且将包含声学泡沫的消声器组装在压缩机内，使得声音不绕过消音器并传输大量的声音 到压缩机壳体。 声波泡沫在高压运行的温度下暴露于压缩机流体时仍保持化学惰性，并且即使在压缩机流体饱和时也能保持其在宽频率范围内吸收声音的能力。 泡沫组件也应能够经受非常大的压力波动而不会经历劣化。

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