| abstract |
The present invention provides a compressor that uses, as a working fluid, a refrigerant including R1123 (1,1,2-trifluoroethylene), and uses a polyvinyl ether oil as a lubricating oil for the compressor. The compressor is provided with a fixed scroll (12) and orbiting scroll (13) that have a spiral wrap rising from an end plate, and a compression chamber (15) formed by engaging the fixed scroll (12) with the orbiting scroll (13). The compressor is further provided with: a discharge hole (18) that is provided at the end plate center position in the fixed scroll (12) and opens to a discharge chamber (31); a bypass hole (68) that is provided in the end plate of the fixed scroll (12) and connects the compression chamber (15) and the discharge chamber (31) at a timing that is different from the timing at which the compression chamber (15) is connected with the discharge hole (18); and a non-return valve that is provided in the bypass hole (68) and allows flow from the compression chamber (15) side to the discharge chamber (31) side. |