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US 10,539,345 B2Granted
Sublimator having a porous plate with integral primary and secondary heat transfer surfaces
AssigneeHamilton Sundstrand Corporation
InventorJesse Joseph Stieber
Life of this patent
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Abstract
A sublimator includes a porous plate having a first surface comprising a low pressure side and a second surface comprising a high pressure side such that refrigerant is configured to move through the porous plate from the high pressure side to the low pressure side. The second surface defines a primary heat transfer surface. The porous plate further includes a plurality of secondary heat transfer surfaces integrally formed on the primary heat transfer surface to facilitate flow and evenly distribute refrigerant across the high pressure side of the porous plate.
Claims19
A sublimator comprising:
- a porous plate having a first surface comprising a low pressure side and a second surface comprising a high pressure side such that refrigerant is configured to move through the porous plate from the high pressure side to the low pressure side, and wherein the second surface defines a primary heat transfer surface;
- and
- a plurality of secondary heat transfer surfaces integrally formed on the primary heat transfer surface to facilitate flow and evenly distribute refrigerant across the high pressure side of the porous plate, and wherein the plurality of secondary heat transfer surfaces comprise a plurality of discrete protrusions extending outwardly from the primary heat transfer surface.
A sublimator comprising:
- a porous plate having a first surface comprising a low pressure side and a second surface comprising a high pressure side such that refrigerant is configured to move through the porous plate from the high pressure side to the low pressure side, and wherein the second surface defines a primary heat transfer surface;
- and
- a plurality of secondary heat transfer surfaces integrally formed on the primary heat transfer surface to facilitate flow and evenly distribute refrigerant across the high pressure side of the porous plate, and wherein the plurality of secondary heat transfer surfaces comprise a plurality of discrete features that are non-coplanar with the primary heat transfer surface and which are placed in a predetermined arrangement to optimize heat sink with heat flux input for the porous plate.
A sublimator comprising:
- a refrigerant chamber having a first side and a second side;
- a fluid chamber positioned on the first side of the refrigerant chamber, wherein the fluid chamber is configured to receive a fluid to be cooled;
- and
- a porous plate having a first surface comprising a low pressure side and a second surface comprising a high pressure side, wherein the high pressure side is positioned on the second side of the refrigerant chamber such that refrigerant is configured to move through the porous plate from the high pressure side to the low pressure side, and wherein the second surface of the porous plate defines a primary heat transfer surface, and wherein the porous plate includes a plurality of secondary heat transfer surfaces integrally formed on the primary heat transfer surface to facilitate flow and evenly distribute refrigerant across the high pressure side of the porous plate.
1 more element
A sublimator comprising:
- a porous plate having a first surface comprising a low pressure side and a second surface comprising a high pressure side such that refrigerant is configured to move through the porous plate from the high pressure side to the low pressure side, and wherein the second surface defines a primary heat transfer surface;
- and
- a plurality of secondary heat transfer surfaces integrally formed with the porous plate on the primary heat transfer surface to facilitate flow and evenly distribute refrigerant across the high pressure side of the porous plate, wherein the primary heat transfer surface of the porous plate comprises a planar surface and the plurality of secondary heat transfer surfaces comprise a plurality of discrete protrusions that extend outwardly from the planar surface such that the discrete protrusions are non-coplanar with the planar surface of the primary heat transfer surface.
Dependencies are inferred from the claim text.