Oil separation structure in compressor

An oil separation structure provided in a discharge pressure zone in a compressor,

• wherein the compressor includes:
• a piston for compressing refrigerant containing oil;
• a housing defining a cylinder bore for accommodating the piston, the housing having a circumferential surface;
• and
• a muffler forming member coupled to the circumferential surface of the housing, wherein the muffler forming member defines a muffler chamber, wherein the refrigerant discharged from the cylinder bore is sent to the muffler chamber,
• the oil separation structure in the compressor comprising;
• an oil separation chamber separating the oil from the refrigerant, the oil separation chamber extending into both the muffler forming member and the housing, the oil separation chamber having a refrigerant inlet through which the refrigerant flows into the oil separation chamber, and the refrigerant inlet being formed in the muffler forming member.