| 摘要 |
PURPOSE:To reduce noise by a method wherein a vibration insulating ring of metal, connecting the inner surface of a mirror plate for an accumulator and a tube extending into the interior of the accumulator closely, is arranged in the captioned device equipped with the accumulator. CONSTITUTION:The accumulator 7 is supported by an enclosed vessel 1 through a supporter 8 and the curved tube 11 attached to the accumulator is connected to the suction port 9 of the enclosed vessel 1. The vibration insulating ring 14 of metal is fixed at the connecting part between the accumulator 7 and the inner surface of the mirror plate 10. The resonance frequency of the vibration at the connecting part of the mirror plate 10 and the curved tube 11 may be shifted to a specified frequency having a large vibration by setting the diameter and the thickness of the ring 14 properly, as a result, noise may be reduced. |
