| 摘要 |
<p>A scroll type fluid compressor unit having an orbiting scroll member and a fixed scroll member which form at least one sealed off fluid pocket therebetween for fluid compression. Each spiral element (232 [242]) of each scroll member (23 [24]) is provided with a sealing element which is loosely fitted in a groove (35) formed in an axial end surface of the spiral element. During the operation, the compressed pressure fluid flows into the groove to urge the sealing element towards the end plate of the opposing scroll member and to the side wall of the groove, so that an axial sealing between the spiral element and the opposing end plate is obtained. The groove may be constituted by an upper portion having a relatively wide opening and a lower portion having a relatively narrow opening, and the sealing element is loosely fitted into the upper portion of the groove so that the hollow portion in which tho compressed pressure fluid is introduced is readily formed.</p> |
