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    • 2. 发明公开
    • Two-stage rotary type compressor
    • Zweistufiger Drehkolbenkompressor
    • EP1369590A2
    • 2003-12-10
    • EP03253574.2
    • 2003-06-05
    • Sanyo Electric Co., Ltd.
    • Malumoto, KenzoYamasaki, HaruhisaSato, KazuyaTadano, MasayaImai, SatoshiSugawara, AkiraSato, Takashi
    • F04C23/00F04C18/356
    • F04C29/02F01C21/0863F01C21/10F04C18/356F04C23/001F04C23/008F04C29/0092F04C29/023F04C29/028F04C29/045F04C2250/101F04C2270/21
    • There is provided an internal intermediate pressure multistage compression type rotary compressor (10) capable of reducing a height dimension while reducing the amount of oil to be discharged outside. An electric element (14) and first and second rotary compression elements (32), (34) which are driven by a rotary shaft (16) of the electric element (14) disposed under the electric element (14) are provided in a hermetic shell case (12). There is provided a refrigerant introduction pipe (92) for introducing refrigerant in the hermetic shell case (12) over the electric element (14) into the second rotary compression element (34) through an outside of the hermetic shell case (12). There is provided an oil path (82) provided in the rotary shaft (16) for discharging oil through an oil discharge port (82A) which is positioned at the upper end of the rotary shaft (16). The refrigerant introduction pipe (92) is provided such that a part of an inlet (92A) of the refrigerant introduction pipe (92) is positioned under the upper end of a stator (22) of the electric element (14).
    • 提供一种内部中压多级压缩式旋转式压缩机(10),其能够减小高度尺寸,同时减少排出外部的油量。 由设置在电气元件(14)下方的电气元件(14)的旋转轴(16)驱动的电气元件(14)和第一和第二旋转压缩元件(32),(34)设置在密封 外壳(12)。 提供了一种制冷剂引入管(92),用于通过密封壳体(12)的外部将密封壳体(12)中的制冷剂导入电气元件(14)进入第二旋转压缩元件(34)。 设置有用于通过位于旋转轴(16)的上端的排油口(82A)排出油的旋转轴(16)中设置的油路(82)。 制冷剂导入管92设置成使得制冷剂导入管92的入口92A的一部分位于电气元件14的定子22的下端的下方。