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US 6,854,509 B2Granted
Foil structures for regenerators
OwnerMatthew P. Mitchellinventor
Life of this patent
Estimating the term…
Abstract
In a regenerator for a regenerative cycle machine, regenerator foil is grooved on both sides, with intersections of grooves on opposite side forming holes at which separate flows of fluid interact to induce flows ancillary to the overall direction of flow in the regenerator, thereby enhancing heat transfer to and from the material of the regenerator and improving thermodynamic performance of the gas cycle machine.
Claims14
In a regenerator comprising multiple layers of foil, an improvement comprising:
- a layer of foil containing a multiplicity of continuous grooves on a first surface thereof and a multiplicity of grooves on a second surface thereof
- wherein said grooves on said first surface are slanted relative to the overall direction of flow in said regenerator, and
- wherein said grooves on said second surface are slanted relative to the overall direction of flow in said regenerator, and
- wherein said grooves on said first surface intersect said grooves on said second surface, and
- wherein the intersections of said grooves on said first surface and said grooves on said second surface comprise holes in said layer of foil.
2 more elements
In a foil regenerator, an improvement comprising:
- multiple alternate layers of solid foil and spacer foil,
- wherein a layer of said spacer foil contains a multiplicity of grooves on a first surface thereof and a multiplicity of grooves on a second surface thereof, and
- wherein said grooves on said first surface intersect said grooves on said second surface, and
- wherein intersections of said grooves on said first surface with said grooves on said second surface comprise holes in said layer of spacer foil, and
- wherein grooves on said first surface are angled relative to the overall direction of flow in said foil regenerator.
2 more elements
Dependencies are inferred from the claim text.