COMPRESSOR

• Main Authors: MAEDA KOJI, NAKANIWA TERUHIRO, ODA TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 10.11.2022
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

To provide a compressor which achieves further reduction of noise.SOLUTION: A compressor includes: a rotary shaft which rotates around an axis; an impeller which rotates with the rotary shaft to pump a fluid from one axial side to the radial outer side; a casing which encloses the rotary shaft and the impeller and is formed with an outlet passage for guiding the fluid pumped by the impeller; and an acoustic liner which is provided so as to face the interior of the outlet passage in the casing. The acoustic liner has: multiple open hole parts which are arranged at an interval; and an acoustic space communicating with the open hole parts and provided independently for each open hole part.SELECTED DRAWING: Figure 3 【課題】さらに騒音が低減された圧縮機を提供する。【解決手段】圧縮機は、軸線回りに回転する回転軸と、回転軸とともに回転することで、軸線方向一方側から径方向外側に向かって流体を圧送するインペラと、回転軸及びインペラを囲うとともに、インペラから圧送される流体を導く出口流路が形成されたケーシングと、ケーシングにおける出口流路内に面するように設けられた音響ライナと、を備え、音響ライナは、互いに間隔をあけて配列された複数の開孔部と、開孔部に連通し、開孔部ごとに独立して設けられた音響空間と、を有する。【選択図】図３