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(11) | EP 1 811 174 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Oil separation structure in compressor |
(57) A muffler forming member (33) defines a muffler chamber (42). Refrigerant discharged
from a cylinder bore (20) is sent to the muffler chamber (42). The muffler forming
member (33) is coupled to a circumferential surface (110) of a housing (11) of a compressor
(10). An oil separation chamber (36) is defined in a discharge pressure zone (132,
40, 36, 42) of the compressor (10). The oil separation chamber (36) separates the
oil from the refrigerant discharged from the cylinder bore (20). The oil separation
chamber (36) extends into both the muffler forming member (33) and the housing (11).
The oil separation chamber (36) has a refrigerant inlet (403) through which the refrigerant
flows into the oil separation chamber (36). The refrigerant inlet (403) is formed
in the muffler forming member (33). Therefore, the oil separation chamber (36) is
prolonged in the direction from the muffler forming member toward the housing (11),
thereby improving the oil separation performance (Fig. 3).
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