| 摘要 |
<p>Provided is a scroll compressor with which noise of a specific frequency range can be reduced when a mixed refrigerant is used. This scroll compressor (1) is equipped with: an orbiting scroll (30) rotatably linked to an eccentric pin (17A) of a main shaft (17); and a stationary scroll (20), which opposes the orbiting scroll (30) and thus forms a compression chamber that compresses a refrigerant, and which has an end plate in which is formed a discharge port (23) that discharges the compressed refrigerant toward a high-pressure chamber (10B). The discharge port (23) is characterized in comprising an upstream port section (23A), which is continuous with the compression chamber and has an aperture area of A1, and a downstream port section (23B), which is continuous with the upstream port section (23A) and has an aperture area of A2 which is larger than the aperture area A1 of the upstream port section (23A), with a node in the oscillation mode occurring at the boundary of the upstream port section (23A) and the downstream port section (23B).</p> |
