SCROLL COMPRESSOR AND REFRIGERATION CYCLE DEVICE USING THE SAME

To supply a proper quantity of oil to a bearing part, a turning inner-line side suction chamber, a turning outer-line side suction chamber and a compression chamber, respectively.SOLUTION: A scroll compressor comprises: a first space which is formed at a backface center part of a turning scroll, to which a lubricant of a bottom part a sealed vessel is introduced, and whose pressure reaches pressure which is the vicinity of discharge pressure; a second space which is provided at an external peripheral side rather than the first space on a backface of the turning scroll, and whose pressure is between the discharge pressure and suction pressure; a back chamber oil leak-out path for making a part of oil in the first space leak to the second space; an oil return passage for returning most of the oil in the first space to the bottom part of the sealed vessel; a suction chamber oil leak-out path for making a part of the oil in the second space leak to the suction chamber; and a compression chamber oil leak-out path for making the oil in the second space escape to the compression chamber, and adjusting pressure in the second space. When the suction chamber oil leak-out path has a crank angle at which a flow passage area of a turning inner-line side suction chamber and a flow passage area of a turning outer-line side suction chamber become equal, the suction chamber oil leak-out path supplies the oil in the second space to both the suction chambers at a turning outer-line side and a turning inner-line side.SELECTED DRAWING: Figure 6 【課題】軸受部、旋回内線側吸込室、旋回外線側吸込室及び圧縮室へそれぞれ適正量の給油を実現する。【解決手段】スクロール圧縮機は、旋回スクロールの背面中心部に形成され密閉容器底部の潤滑油が導かれて吐出圧力に近い圧力となる第１の空間と、旋回スクロールの背面で第１の空間よりも外周側に設けられ吐出圧力と吸込圧力との間の圧力となる第２の空間と、第１の空間内の一部の油を第２の空間へ漏出させる背圧室油漏出路と、第１の空間内の大部分の油を密閉容器内の底部へ戻す油戻し通路と、第２の空間内の油の一部を吸込室へ漏出させる吸込室油漏出路と、第２の空間内の油を圧縮室に逃がし第２の空間内の圧力を調整する圧縮室油漏出路を備える。吸込室油漏出路は、旋回内線側吸込室の流路面積と、旋回外線側吸込室の流路面積が等しくなるクランク角のとき旋回外線側と旋回内線側の両吸込室に第２の空間内の油を供給する。【選択図】図６