Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kingston Owens0
Christopher C. Langenfeld0
Dean L. Kamen0
Jonathan Strimling0
Michael Norris0
Ryan Keith LaRocque0
Thomas Q. Gurski0
Date of Patent
November 22, 2005
0Patent Application Number
107539180
Date Filed
January 7, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A thermal cycle engine having a heat exchanger for transferring thermal energy across the heater head from a heated external fluid to the working fluid. The heat exchanger has a set of heat transfer pins each having an axis directed away from the cylindrical wall of the expansion cylinder. The height and density of the heat transfer pins may vary with distance in the direction of the flow path, and the pin structure may be fabricated by stacking perforated rings in contact with a heater head. Ribs are provided interior to the heater head to enhance hoop strength and thermal transfer.
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