| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce a stirring loss due to a balance weight.SOLUTION: A scroll compressor includes a fixed scroll, an orbiting scroll, a frame 6, an Oldham's ring 8, a crank shaft 7, and a balance weight 9. A key of the Oldham's ring 8 mounted in an Oldham key groove 6c of the frame 6 has a projecting portion 8d projecting to a central side, an oil discharge space 18 surrounded by the projecting portion 8d of the key, the balance weight 9 and the frame 6 is formed in at least a certain crank angle section, a volume of the oil discharge space 18 is reduced in accordance with advancing of a crank angle by rotation of the crank shaft 7, and further the oil discharge space 18 is provided with an oil discharge passage 6d for discharging an oil to the outside of the oil discharge space.</p> |
