发明名称 Two-stage rotary type compressor
摘要 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). <IMAGE>
申请公布号 EP1369590(A2) 申请公布日期 2003.12.10
申请号 EP20030253574 申请日期 2003.06.05
申请人 JP 发明人 JP;JP;JP;JP;JP;JP;JP
分类号 F01C21/08;F01C21/10;F04C18/356;F04C23/00;F04C29/00;F04C29/02;F04C29/04;(IPC1-7):F04C18/356 主分类号 F01C21/08
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