FLUID MACHINE

• Main Authors: SAITO KEITA, IWANAMI SHIGEKI, NAKAYAMA HARUNAGA
• Format: Patent
• Language: English; Japanese
• Published: 18.06.2020
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; WEAPONS

To provide a fluid machine capable of suppressing a wear of a projecting portion and an interposing member in a rotation preventive mechanism portion.SOLUTION: A fluid machine 1 is equipped with a fixing scroll 33 that has a fixing side tooth portion 331, a swiveling scroll 20 that has a swiveling side tooth portion 22 forming a compression chamber 38 sucking, compressing, and discharging a fluid between the swiveling side tooth portion and the fixing side tooth portion 331, and a plurality of rotation preventive mechanism portions 50. The rotation prevention mechanism portions 50 respectively have regulating portions 51 with circular inner peripheral walls, projecting portions 52 swiveling inside the regulating portion 51 while being regulated by the inner peripheral walls, and ring-shaped interposing members 53 interposed between the projecting portions 52 and the inner peripheral walls. The interposing member 53 are formed by a material with surface hardness lower than that of the projecting portions 52. The projecting portions 52 are formed so as to have surface roughness smaller than that of inner peripheral portions of the interposing members 53.SELECTED DRAWING: Figure 1 【課題】自転防止機構部における突出部と介装部材の摩耗を抑制できる流体機械を提供する。【解決手段】流体機械１は、固定側歯部３３１を有した固定スクロール３３と、固定側歯部３３１との間に流体を吸入、圧縮および吐出する圧縮室３８を形成する旋回側歯部２２を有した旋回スクロール２０と、複数の自転防止機構部５０とを備える。自転防止機構部５０は、円形状の内周壁を有する規制部５１と内周壁に規制されつつ規制部５１の内側において旋回する突出部５２と突出部５２と内周壁の間に介在するリング状の介装部材５３とをそれぞれ有する。介装部材５３は表面硬さが突出部５２の表面硬さよりも低い材質によって形成されている。突出部５２は表面粗さが介装部材５３の内周部よりも小さく形成されている。【選択図】図１