| 摘要 |
A scroll compressor has structure in the tips of at least one of its wraps that reduces a force separating the scroll wraps. In one embodiment, the structure includes recesses formed in the tip such that low pressure fluid is tapped across the surface between the tip and the opposed scroll base. The low pressure fluid reduces the separating force between the scroll wrap. Separating walls may be formed to define separate recesses. In a second embodiment, an intermediate pressure fluid is tapped into a groove. Again, the low pressure reduces the separating force component across the scroll wrap. This invention is particularly valuable in the type of scroll wraps having thick wraps.
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