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发明授权
CN101265905B 涡旋式流体机械 有权

涡旋式流体机械
摘要：
本发明提供一种能防止动力损失并且可提高压缩室的密闭性的涡旋式流体机械。在各涡旋件(2、11)的卷部(4、13)的外周面(4B、13B)上设置有多个外周突起(15、16)。此外，在固定涡旋件(2)的卷部(4)的外周面(4B)上形成外周侧涂层(17)，在卷部4的内周面(4A)上形成内周侧涂层(18)。这时，各涂层(17、18)具有：与对方的卷部(13)接触的接触部(17A、18A)；以及与卷部(13)不接触的非接触部(17B、18B)。借此，通过接触部(17A、18A)，能提高压缩室(14)的密闭性，并通过非接触部(17B、18B)，可防止动力损失。
摘要（英）：

A scroll fluid machine that is capable of preventing a power loss and enhancing the degree of hermeticity of compression chambers. A plurality of outer peripheral projections are formed on an outer peripheral surface of a wrap portion of each scroll. An outer peripheral coating layer is formed on an outer peripheral surface of a wrap portion of a fixed scroll, and an inner peripheral coating layer is formed on an inner peripheral surface of the wrap portion. Each of the coating layers comprises: contact portions that make contact with the mating wrap portion; and non-contact portions that do not make contact with the mating wrap portion. In this way, the degree of hermeticity of the compression chambers can be enhanced by the contact portions, and power loss can be prevented by the non-contact portions.

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