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US 2015/0144309 A1Published application
Flattened Envelope Heat Exchanger
AssigneeBrayton Energy, LLC
InventorJames S. Nash
Life of this patent
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Abstract
The present invention provides an apparatus and method for heat exchange. Embodiments of the present invention include a method and apparatus for heat exchange employing a unit cell using interior and exterior fins, the interior fins disposed within a flattened envelope structure. In one particular embodiment, the heat exchanger is directed for use as a gas engine recuperator.
Claims20
A unit cell device for a heat exchanger comprising:
- a peripheral envelope comprising a length, a width, a height, an interior surface, an upper and a lower exterior surface, a first end and a second end, the peripheral envelope forming an interior void defined by the interior surface, the first end and the second end;
- an interior fin comprising a length, a width, and a height, the interior fin disposed with the interior void and interconnected to the interior surface, the interior fin forming a plurality of longitudinal cavities;
- a first exterior fin disposed on the upper exterior surface;
- and
- a second exterior fin disposed on the lower exterior surface.
2 more elements
The device of claim 10, wherein the interior fin is coated with at least one of a braze alloy or a metal melt depressant slurry.
A method of manufacturing a unit cell device for a heat exchanger comprising:
- producing a continuous metal peripheral envelope comprising a length, a width, a height, an interior surface, an upper and a lower exterior surface, a first end and a second end, the peripheral envelope forming an interior void defined by the interior surface, the first end and the second end;
- providing an interior fin comprising a length, a width, and a height, the interior fin disposed with the interior void, the interior fin forming a plurality of longitudinal cavities;
- providing a first exterior fin;
- providing a second exterior fin;
- inserting the interior fin within the interior void;
- interconnecting the interior fin to the interior surface;
- disposing the first exterior fin on the upper exterior surface;
- and
- disposing the second exterior fin on the lower exterior surface.
6 more elements
Dependencies are inferred from the claim text.