Evaporators for heat transfer systems
First Claim
Patent Images
1. A method of making an evaporator, the method comprising:
- orienting a heated wall having a planar shape to define at least a portion of an exterior surface of the evaporator with a heat-absorbing surface of the heated wall configured to receive heat;
orienting a liquid barrier wall having a planar shape configured to confine liquid adjacent the heated wall;
positioning a wick between the heated wall and the liquid barrier wall;
defining at least one vapor removal channel at an interface between the wick and the heated wall;
defining at least one liquid flow channel between the liquid barrier wall and the wick; and
defining a vapor vent channel substantially between the wick and the liquid barrier wall proximate the at least one liquid flow channel, the vapor vent channel sized and configured to remove vapor bubbles from the wick.
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Abstract
A heat transfer system includes an evaporator having a heated wall, a liquid barrier wall containing working fluid, a primary wick positioned between the heated wall and an inner side of the liquid barrier wall, a vapor removal channel located at an interface between the primary wick and the heated wall, and a liquid flow channel located between the liquid barrier wall and the primary wick. Methods of transferring heat include applying heat energy to a vapor barrier wall, flowing liquid through a liquid flow channel, pumping the liquid from the liquid flow channel through a primary wick, and evaporating at least some of the liquid at a vapor removal channel.
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Citations
19 Claims
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1. A method of making an evaporator, the method comprising:
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orienting a heated wall having a planar shape to define at least a portion of an exterior surface of the evaporator with a heat-absorbing surface of the heated wall configured to receive heat; orienting a liquid barrier wall having a planar shape configured to confine liquid adjacent the heated wall; positioning a wick between the heated wall and the liquid barrier wall; defining at least one vapor removal channel at an interface between the wick and the heated wall; defining at least one liquid flow channel between the liquid barrier wall and the wick; and defining a vapor vent channel substantially between the wick and the liquid barrier wall proximate the at least one liquid flow channel, the vapor vent channel sized and configured to remove vapor bubbles from the wick. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of making an evaporator, the method comprising:
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orienting a heated wall such that a heat-absorbing surface of the heated wall defines at least a portion of an exterior surface of the evaporator configured to receive heat; orienting a liquid barrier wall configured to confine liquid adjacent the heated wall; positioning a primary wick between the heated wall and the liquid barrier wall; defining at least one vapor removal channel at an interface between the primary wick and the heated wall; defining at least one liquid flow channel between the liquid barrier wall and the primary wick; and positioning a secondary wick between the at least one liquid flow channel and the primary wick. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of making an evaporator, the method comprising:
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defining at least a portion of an exterior surface of the evaporator with a heat-absorbing surface of a heated wall configured to receive heat; positioning a wick to extend between the heated wall and a liquid barrier wall positioned proximate the heated wall and configured to confine liquid; forming at least one liquid flow channel in at least one of an inner surface of the liquid barrier wall and a surface of the wick; forming at least one vapor removal channel in at least one of an inner surface of the heated wall and another surface of the wick; positioning a secondary wick between the wick and the at least one liquid flow channel; and forming a vapor vent channel at an interface between the secondary wick and the wick configured to remove vapor bubbles from the wick. - View Dependent Claims (17, 18, 19)
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Specification