| 摘要 |
PURPOSE:To attenuate pressure pulsation in a low-pressure path immediately and prevent generation of abnormal sound by a method wherein the inner diameter of a tube for a filter member, provided on the way of a suction tube in the compressor, is designed so as to be larger than the same of inlet and outlet tubes connected to the filter chamber, to provide the filter chamber with a volume larger than a predetermined volume. CONSTITUTION:The inner diameter of the tube for filter chamber 9' provided on the way of the suction tube 8' connected directly to a suction port 7 is designed so as to be larger three times or more than the same of the inlet tube 8a and the outlet tube 8b', therefore, an attenuating effect may be achieved clearly with respect to the pressure pulsation in case high-pressure refrigerant gas, being compressed in a cylinder 5, is discharged out of a discharging port 11. Accordingly, the pressure pulsation from the compression mechanism 2 is attenuated immediately in the filter chamber 9' immediately after the generation thereof and propagating energy to the outside of enclosed vessel of the rotary compressor 1 is reduced remarkably, therefore, generation of abnormal sound due to up-and-down pulsation of a non-return valve (not shown in the diagram) caused by the pressure pulsation may be prevented.
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