| 摘要 |
In a scroll compressor, strength of a spiral wall in a scroll is improved, without deteriorating workability or increasing liquid leakage due to internal compression. A part of a spiral in a mobile scroll (as well as in a fixed scroll) around the central inner end (as well as around the outer end) formed by a curve approaching the origin of an involute forming the inner surface of the spiral and by a curve approaching the origin of an involute forming the outer surface of the spiral is shaped differently from that of conventional examples, its wall being thicker at the base and tapered toward the edge. Therefore, strength of the spiral wall in a scroll is improved as compared with a conventional example, and neither compression nor sealing capacity is affected since neither of the parts of the spiral with tapered walls mentioned above acts as a sealing surface. <IMAGE> <IMAGE> |
