ENCLOSED COMPRESSOR

摘要

An enclosed compressor having first and second compressors arranged at the upper and lower portions in an enclosed housing, with the first compressor at the lower part being a rotary compressor. The enclosed compressor is simplified in structure and reduced in cost by reducing the number of parts which construct an oil supply pump and a lower muffler chamber and adapting the parts to be easily worked. In an enclosed compressor (1) having first and second compressors (2, 3) arranged at the upper and lower portions in an enclosed housing (10) with the first compressor (2) at the lower portion being a rotary compressor, a lower bearing (23) of the rotary compressor (2) supports the lower end of a rotating shaft (7) on the center side of the lower bearing, has a bearing boss (50) having at the lower end surface thereof a cylinder chamber (55) of the oil supply pump (14), and is formed in a double-tube shape having an outer tube (51) located on the outer peripheral side of the bearing boss (50) so as to surround the bearing boss. A lid (58) is mounted to the lower end surface of the lower bearing (23) to define the cylinder chamber (55) and the lower muffler chamber (28) of the rotary compressor (2).