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Heat exchanger for a heat engine

  • US 6,279,318 B1
  • Filed: 03/10/2000
  • Issued: 08/28/2001
  • Est. Priority Date: 12/17/1999
  • Status: Expired due to Fees
First Claim
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1. A heat engine body comprising:

  • (a) an outer longitudinally extending wall, an inner longitudinally extending wall spaced from the outer longitudinally extending wall to define a first passageway, each wall having an inner surface and an outer surface, the inner wall surrounding a cavity, each of the inner and outer walls having longitudinally spaced apart first and second ends, a heat source mounted at the first end and spaced from the inner wall to define a second passageway, the first and second ends in fluid flow communication via the first and second passageways, the first and second ends and the first and second passageways defining a sealed region within which a working fluid is circulated;

    (b) a first heat exchanger mounted in the first passageway comprising at least one fin having first and second opposed sides and constructed to direct the working fluid as it flows through the first heat exchanger to enhance heat transfer between the working fluid and the first heat exchanger; and

    , (c) a second heat exchanger mounted in the second passageway comprising at least one fin having first and second opposed sides and constructed to direct the working fluid as it flows through the second heat exchanger to enhance heat transfer between the working fluid and the second heat exchanger the at least one fin of at least one of the first and second heat exchangers including a plurality of longitudinally spaced apart fins or a helical fin.

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