Impeller driven active heat sink
DCFirst Claim
1. A heat transfer apparatus, comprising:
- a heat source having a heat source maximum operating temperature;
and a heat sink comprising a closed chamber having a chamber first end wall, a chamber second end wall and a circumferential chamber side wall interconnecting said chamber first end wall and said chamber second end wall, said walls defining a chamber interior space, at least one of said chamber first end wall and said chamber second end wall being a heat transfer wall, a heat transfer material retained within said chamber, and at least one impeller having an axis of impeller rotation and an impeller radius mounted within said chamber adjacent to said heat source to rotate about the axis of impeller rotation for moving the heat transfer material over said heat transfer wall and propelling said heat transfer material to a location thermally remote from said heat source for heat dissipation, wherein said chamber interior space extends perpendicular to the axis of impeller rotation a radial thermal spacing distance of at least two times the impeller radius.
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Abstract
A heat transfer apparatus includes a heat source having a heat source maximum operating temperature; and a heat sink comprising a closed chamber having a chamber first end wall, a chamber second end wall and a circumferential chamber side wall interconnecting said chamber first end wall and said chamber second end wall, said walls defining a chamber interior space, at least one of said chamber first end wall and said chamber second end wall being a heat transfer wall, a heat transfer material retained within said chamber, and at least one impeller having an axis of impeller rotation and an impeller radius mounted within said chamber adjacent to said heat source to rotate about the axis of impeller rotation for moving the heat transfer material over said heat transfer wall and propelling said heat transfer material to a location thermally remote from said heat source for heat dissipation, wherein said chamber interior space extends perpendicular to the axis of impeller rotation a radial thermal spacing distance of at least two times the impeller radius.
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Citations
20 Claims
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1. A heat transfer apparatus, comprising:
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a heat source having a heat source maximum operating temperature; and a heat sink comprising a closed chamber having a chamber first end wall, a chamber second end wall and a circumferential chamber side wall interconnecting said chamber first end wall and said chamber second end wall, said walls defining a chamber interior space, at least one of said chamber first end wall and said chamber second end wall being a heat transfer wall, a heat transfer material retained within said chamber, and at least one impeller having an axis of impeller rotation and an impeller radius mounted within said chamber adjacent to said heat source to rotate about the axis of impeller rotation for moving the heat transfer material over said heat transfer wall and propelling said heat transfer material to a location thermally remote from said heat source for heat dissipation, wherein said chamber interior space extends perpendicular to the axis of impeller rotation a radial thermal spacing distance of at least two times the impeller radius. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A heat transfer apparatus, comprising:
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a heat source having a heat source maximum operating temperature; and a heat sink comprising a closed chamber having a chamber first end wall, a chamber second end wall and a circumferential chamber side wall interconnecting said chamber first end wall and said chamber second end wall, said walls defining a chamber interior space, at least one of said chamber first end wall and said chamber second end wall being a heat transfer wall in thermal contact with the heat source, a phase change heat transfer material retained within said chamber, and at least one impeller having an axis of impeller rotation and an impeller radius mounted within said chamber adjacent to said heat source to rotate about the axis of impeller rotation for moving any said phase change material in its liquid phase over said heat transfer wall and propelling said heat transfer material to a location thermally remote from said heat source for heat dissipation. - View Dependent Claims (8, 9, 10, 11)
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12. A heat transfer apparatus, comprising:
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a heat source having a heat source maximum operating temperature; and a heat sink comprising a chamber having a chamber first end wall, a chamber second end wall and a circumferential chamber side wall interconnecting said chamber first end wall and said chamber second end wall, said walls defining a chamber interior space, at least one of said chamber first end wall and said chamber second end wall being a heat transfer wall in thermal contact with the heat source, a heat transfer material retained within said chamber, and at least one impeller having an axis of impeller rotation and an impeller radius mounted within said chamber adjacent to the heat source to rotate about the axis of impeller rotation for moving the material over the heat transfer wall and propelling said material to a heat exchange region that is external to the said chamber. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A heat transfer apparatus, comprising:
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a heat source having a heat source maximum operating temperature; and a heat sink comprising a closed chamber having a chamber first end wall, a chamber second end wall and a circumferential chamber side wall interconnecting said chamber first end wall and said chamber second end wall, said walls defining a chamber interior space, said circumferential chamber side wall being a heat transfer wall in thermal contact with the heat source;
a heat transfer material retained within said chamber, said heat transfer material being one of;
a liquid;
a liquid-in-liquid emulsion;
a liquid-vapor mixture, a solid-in-liquid suspension, a phase change material, and a phase change material-in-liquid suspension; and
at least one impeller having an axis of impeller rotation and an impeller radius mounted within said chamber to rotate about the axis of impeller rotation for moving any said heat transfer material in its liquid phase over said heat transfer wall for heat dissipation. - View Dependent Claims (19, 20)
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Specification