| 摘要 |
PURPOSE:To prevent an excessive pressure from being applied in the internal space of a silencing chamber which will not be subjected to dynamic pressure so that a reduction of pressure-enduring performance thereof will not give no effect on the characteristics thereof, reduce the thickness of the chamber wall, and the size and the weight of the silencing chamber by disposing it on the way of a refrigerant piping. CONSTITUTION:A net element 34 is provided at an inlet 33 where the inside space 33 of a silencing chamber 30 is communicated with a flow passage 22. The net element is firmly engaged in a groove 36 formed in the chamber wall 35 near the inlet of the silencing chamber. Refrigerant flowing through the flow passage 21 of a refrigerant piping 20 therefore will not directly flow into the inside space 32 of the silencing chamber 30. Only when flow is pulsated, the net element allows the varied pressure to be transmitted into the inside space. Since the net element 34 covers the inlet 33 of the silencing chamber 30, the flow of refrigerant along the flow passage 21 will not be disturbed, thereby effectively transmitting pulsation only to the internal space 32 of the silencing chamber 30. The silencing chamber 30 is therefore subjected to no dynamic pressure, allowing reduction in the pressure-enduring performance and thickness of the chamber wall, and size and weight of the chamber. |
