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Sublouvred fins and a heat engine and a heat exchanger having same

  • US 6,345,666 B1
  • Filed: 03/10/2000
  • Issued: 02/12/2002
  • Est. Priority Date: 12/17/1999
  • Status: Expired due to Fees
First Claim
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1. A heat engine comprising:

  • (a) inner and outer spaced apart longitudinally extending walls, each wall having an inner surface and an outer surface, the inner wall surrounding a cavity, each of the inner and outer wall having longitudinally spaced apart first and second ends, the first end is at a different temperature than the second end when the heat engine is in use, the first and second ends in fluid flow communication via a passageway, the first and second ends and the passageway defining a sealed region; and

    , (b) a heat exchanger mounted on a portion of one of the walls, the heat exchanger comprising at least one fin extending around the portion of the wall and having first and second opposed sides and a plurality of main directing members, the fin configured and arranged to produce a main flow of fluid which flows through the fin and to produce a secondary fluid flow which passes through the main directing members whereby the heat transfer between the fluid and the heat exchanger is enhanced.

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