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Heat engine

  • US 20030000213A1
  • Filed: 06/15/2002
  • Published: 01/02/2003
  • Est. Priority Date: 12/17/1999
  • Status: Active Grant
First Claim
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1. A heat engine comprising:

  • a) a boiler having an Inlet and an outlet and connected to receive a working fluid in a liquid state and vaporizing said working fluid to a vapor on input of heat from a boiler. heat-source input heat exchanger;

    b) a positive displacement rotating expander with an inlet and outlet and adapted for receiving and expanding said vapor from said boiler outlet at high pressure to produce a work output and providing said vapor at low pressure at said outlet;

    c) a condenser having an inlet for receiving said vapor from said expander outlet and condensing said vapor to said working fluid liquid;

    d) a pump with an inlet and outlet for taking said working fluid liquid from said condenser at low pressure and providing said working fluid to said boiler inlet at high pressure; and

    e) at least one of the following;

    1) a heat transfer device for recovering waste heat from said heat engine and using said heat to improve said heat engine efficiency;

    2) a compression heat-transfer device providing heat to said working fluid of said heat engine; and

    , 3) an absorption heat transfer device transferring heat to or from said working fluid of said heat engine.

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