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Fluid pump having expansion device and rankine cycle using the same

  • US 20060213218A1
  • Filed: 03/23/2006
  • Published: 09/28/2006
  • Est. Priority Date: 03/25/2005
  • Status: Active Grant
First Claim
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1. A fluid machine comprising:

  • a pump for pressurizing and pumping out liquid phase working fluid; and

    an expansion device connected to the pump in series and for generating a driving force by expansion of the working fluid, which is heated to become gas phase working fluid, wherein a portion of an outlet side passage formed in the fluid machine, through which the working fluid flows from the expansion device, is arranged adjacent to a portion of a pump outlet-side passage formed in the fluid machine (100), through which the working fluid flows from the pump, so that heat of the working fluid in the outlet side passage is transferred to the working fluid in the pump outlet-side passage.

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