SCROLL COMPRESSOR

To provide a scroll compressor improved in efficiency.SOLUTION: A scroll compressor 100 includes: a rotary shaft 4 which rotates about an axis O1; a bearing device 9A which rotatably supports the rotary shaft 4; a driving portion 3 which drives the rotary shaft 4; a compressing portion 2 which is disposed on the opposite side to the driving portion 3 in an axial direction across the bearing device 9A, and is rotated by the rotary shaft 4 to compress a coolant; a housing 1 which stores the rotary shaft 4, the driving portion 3 and the compressing portion 2; a machine space V2 in which the bearing device 9A and the driving portion 3 are disposed, in the housing 1; a seal portion S which seals the circulation of fluids between a suction space V1 in which the compressing portion 2 is disposed and the seal portion S; a suction pipe 11 which supplies the coolant before compression into the suction space V1; and a boosting portion 80 which boosts the machine space V2 so as to make the pressure in the machine space V2 become equal to or more than the pressure in the suction space V1.SELECTED DRAWING: Figure 1 【課題】効率が向上したスクロール圧縮機を提供する。【解決手段】スクロール圧縮機１００は、軸線Ｏ１回りに回転する回転軸４と、回転軸４を回転可能に支持する軸受装置９Ａと、回転軸４を回転駆動させる駆動部３と、軸受装置９Ａを挟んで軸線方向における駆動部３の反対側に配置され、回転軸４によって回転することで冷媒を圧縮する圧縮部２と、回転軸４、駆動部３及び圧縮部２を収容するハウジング１と、ハウジング１内において、軸受装置９Ａ及び駆動部３が配置された機械空間Ｖ２と、圧縮部２が配置された吸入空間Ｖ１との間における流体の流通をシールするシール部Ｓと、吸入空間Ｖ１に圧縮前の冷媒を供給する吸入配管１１と、機械空間Ｖ２の圧力が、吸入空間Ｖ１の圧力以上となるように機械空間Ｖ２を昇圧する昇圧部８０と、を備える。【選択図】図１