Patent ID: 8636480
Filing Date: 2014-01-28
Classification: F04C

Abstract:
1. A compressor, comprising: a hermetically sealed container including a suction pipe through which a low-pressure refrigerant is sucked into an internal space of the hermetically sealed container and a discharge pipe through which a high-pressure refrigerant is discharged from the hermetically sealed container; a stator fixedly installed within the hermetically sealed container, the stator generating a rotating electromagnetic field inside the stator; a first rotary member that is rotated, within the stator, by the rotating electromagnetic field of the stator, around a first rotary shaft that longitudinally extends concentrically with respect to a center of the stator, the first rotary member including first and second covers disposed at upper and lower portions thereof, respectively, wherein the first cover includes a refrigerant discharge opening; a second rotary member, within the first rotary member, that compresses a refrigerant in a compression space formed between the first and second rotary members while rotating around a second rotary shaft upon receipt of a rotational force from the first rotary member, wherein the second rotary shaft penetrates the first and second covers, respectively, and wherein the second rotary member includes a suction path through which the refrigerant is sucked into the compression space; a vane that transmits the rotational force from the first rotary member to the second rotary member, and partitions the compression space into a suction region, which the refrigerant is sucked into, and a compression region, where the refrigerant is compressed and then discharged, wherein the refrigerant discharge opening of the first cover fluidly communicates with the compression region; and first and second bearings fixed to the inside of the hermetically sealed container, that rotatably support the first and second rotary members in an axial direction, wherein the first bearing includes a suction guide path that fluidly communicates with the suction path and the internal space of the hermetically sealed container to guide the suction of the refrigerant and a discharge guide path that communicates with the refrigerant discharge opening of the first cover to guide the discharge of the refrigerant together with the discharge pipe inserted into the first bearing from the outside of the hermetically sealed container.