Patent ID: 8709117

Claim:
An oil separator provided in a flow path of a refrigerant gas flowing from a compressor to a refrigerator, the oil separator comprising: a filter configured to form an internal space by including a filter material having a cylindrical shape, the filter material filtering out oil from the refrigerant gas, an upper lid bonded to an upper portion of the filter material, and a lower lid bonded to a lower portion of the filter material; a body configured to accommodate the filter; a gas inlet pipe penetrating through the upper lid, the gas inlet pipe being configured to introduce the refrigerant gas into the internal space; and a gas outlet pipe penetrating through the upper lid, the gas outlet pipe being configured to eject the refrigerant gas from which the oil is filtered out by the filter from an upper portion of the body, wherein a lower end of the gas inlet pipe is opened to the internal space at a position higher than the lower lid and lower than a substantial center between the upper lid and the lower lid.