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    • 1. 发明公开
    • FLUID MACHINE, AND REFRIGERANT CIRCUIT AND WASTE HEAT UTILIZATION DEVICE USING THE FLUID MACHINE
    • 斯德哥尔摩公司,KÜHLKREISLAUFSOWIEABWÄRMENUTZUNGSVORRICHTUNGMIT DERSTRÖMUNGSMASCHINE
    • EP2415964A1
    • 2012-02-08
    • EP10761373.9
    • 2010-03-29
    • Sanden Corporation
    • WADA, Hirofumi
    • F01C21/18F01C20/26F01C20/28F01K23/06F02G5/02
    • F02G5/02F01C1/0215F01C20/06F01C20/26F01C20/28F01C21/18F01K23/065F04C18/0215F04C28/06F04C28/26F04C28/28F04C29/124Y02T10/166Y10T137/8593
    • [Purpose] To provide a fluid machine, and a refrigerant circuit and a waste heat utilization device using the fluid machine, whereby the size and cost of a Rankine circuit and thus of the waste heat utilization device can be reduced while preventing an abnormally high pressure from being developed in the Rankine circuit and also improving starting performance of the Rankine circuit.
      [Means for Attaining the Purpose]
      A waste heat utilization device (1) is provided with a Rankine circuit (4) including a fluid machine (10). The fluid machine (10) includes, inside a housing thereof, a drive section (22) configured to be driven by a working fluid introduced from an inlet port (33) and to discharge the working fluid to an outlet port (45), a communication passage (102) allowing the working fluid to flow from the inlet port into the drive section, a bypass passage (104) allowing the working fluid to flow from the inlet port to the outlet port while bypassing the drive section, and a valve mechanism (106, 112, 124) configured to block inflow of the working fluid from the inlet port and to allow the inlet port to be connected selectively to the communication passage and the bypass passage.
    • [目的]提供一种流体机械,以及使用该流体机械的制冷剂回路和废热利用装置,由此可以减少兰金回路和废热利用装置的尺寸和成本,同时防止异常高压 在兰金电路中开发,并且还提高了兰金电路的启动性能。 [用于达成目的的手段]废热利用装置(1)具备包括流体机械(10)的兰金电路(4)。 流体机械(10)在其壳体的内部包括驱动部分(22),该驱动部分构造成由从入口(33)引入的工作流体驱动并将工作流体排出到出口(45), 连通通道(102),其允许工作流体从入口流入驱动部分;旁路通道(104),其允许工作流体在从动入口绕过驱动部分时从入口流到出口;以及阀机构 (106,112,124),其构造成阻止所述工作流体从所述入口端口的流入并且允许所述入口选择性地连接到所述连通通道和所述旁路通道。