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CN104093935A 涡旋型膨胀器及包括该涡旋型膨胀器的流体设备 无效 - 撤回

涡旋型膨胀器及包括该涡旋型膨胀器的流体设备
摘要：
提供一种结构比较简单、能量损失少且具有较高的耐久性及可靠性的涡旋型膨胀器。泵一体型膨胀器(27)包括作为涡旋型膨胀器构成的膨胀单元(50)。在膨胀单元(50)中，在定涡盘(51)的基部(51a)形成有从朝外部开口的吸入端口(51c)延伸至朝膨胀室(54)开口的导入口(51d)的工作流体通路(51e)。利用工作流体通路(51e)将从外部供给来的工作流体引导到膨胀室(54)。为了承受作用于动涡盘(53)的推力，并且阻止动涡盘(53)自转，在膨胀器外壳(52)的台阶面(52c)与动涡盘(53)的基部(53a)之间设置有将滚珠用作滚动构件的球状联结器式的自转阻止机构(56)。
摘要（英）：

Provided is a scroll-type expander having a relatively simple structure, low energy loss and high durability and reliability. A pump-integrated expander (27) is provided with an expansion unit (50) configured as a scroll-type expander. In the expansion unit (50), an operation fluid path (51e) is formed in a base portion (51a) of a fixed scroll (51), said operation fluid path (51e) extending: from an intake port (51c) that opens to the outside; to a supply opening (51d) that opens to an expansion chamber (54). Operation fluid supplied from the outside is guided to the expansion chamber (54) by means of the operation fluid path (51e). To prevent rotation of a movable scroll (53) as well as to receive a thrust force acting on the movable scroll (53), a ball coupling-type rotation prevention mechanism (56) that uses a ball as a rolling member is provided between a stepped surface (52c) of an expander housing (52) and a base portion (53a) of the movable scroll (53).

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