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US 10,704,838 B2Granted
Loop heat pipe
AssigneeShinko Electric Industries Co., Ltd.
InventorsYoshihiro Machida, Nobuyuki Kurashima
Life of this patent
Estimating the term…
Abstract
A loop heat pipe includes an evaporator that vaporizes working fluid; a condenser that condenses the working fluid; a liquid line that connects the evaporator and the condenser; a vapor line that connects the evaporator and the condenser to form a loop with the liquid line; and a porous body provided in the liquid line, and including a first metal layer that includes a first bottomed hole that is concaved from one surface of the first metal layer, and a second bottomed hole that is concaved from another surface of the first metal layer, the other surface being opposite of the one surface, the first bottomed hole and the second bottomed hole partially communicating with each other to form a pore.
Claims10
A loop heat pipe comprising:
- an evaporator that vaporizes working fluid;
- a condenser that condenses the working fluid;
- a liquid line that connects the evaporator and the condenser;
- a vapor line that connects the evaporator and the condenser to form a loop with the liquid line;
- and
- a porous body provided in the liquid line, and including a plurality of metal layers stacked one over another and bonded together, each of the metal layers being formed by etching a unitary metal sheet from two opposing surfaces, a first metal layer among the plurality of metal layers including
- a first hole that is recessed from one surface of the first metal layer, the first hole having a bottom surface, the first hole having a bottom-side region of an inner surface thereof and an opening-side region of the inner surface thereof, and
- a second hole that is recessed from another surface of the first metal layer, the other surface being opposite of the one surface, the second hole having a bottom surface, the second hole having a bottom-side region of an inner surface thereof and an opening-side region of the inner surface thereof, the bottom surface of the first hole and the bottom surface of the second hole partially overlapping each other as viewed in a thickness direction of the metal layers to communicate with each other to form a pore,
- wherein a width of the first hole at the opening-side region of the inner surface of the first hole is larger than a width of the first hole at the bottom-side region of the inner surface of the first hole, and a width of the second hole at the opening-side region of the inner surface of the second hole is larger than a width of the second hole at the bottom-side region of the inner surface of the second hole, and
- wherein in the first metal layer, the opening-side region of the inner surface of the first hole and the opening-side region of the inner surface of the second hole are positioned off center from each other as viewed in the thickness direction of the metal layers.
7 more elements
A loop heat pipe comprising:
- an evaporator that vaporizes working fluid;
- a condenser that condenses the working fluid;
- a liquid line that connects the evaporator and the condenser;
- a vapor line that connects the evaporator and the condenser to form a loop with the liquid line;
- and
- a porous body provided in the evaporator, and including a plurality of metal layers stacked one over another and bonded together, each of the metal layers being formed by etching a unitary metal sheet from two opposing surfaces, a first metal layer among the plurality of metal layers including
- a first hole that is recessed from one surface of the first metal layer, the first hole having a bottom surface, the first hole having a bottom-side region of an inner surface thereof and an opening-side region of the inner surface thereof, and
- a second hole that is recessed from another surface of the first metal layer, the other surface being opposite of the one surface, the second hole having a bottom surface, the second hole having a bottom-side region of an inner surface thereof and an opening-side region of the inner surface thereof, the bottom surface of the first hole and the bottom surface of the second hole partially overlapping each other as viewed in a thickness direction of the metal layers to communicate with each other to form a pore,
- wherein a width of the first hole at the opening-side region of the inner surface of the first hole is larger than a width of the first hole at the bottom-side region of the inner surface of the first hole, and a width of the second hole at the opening-side region of the inner surface of the second hole is larger than a width of the second hole at the bottom-side region of the inner surface of the second hole, and
- wherein in the first metal layer, the opening-side region of the inner surface of the first hole and the opening-side region of the inner surface of the second hole are positioned off center from each other as viewed in the thickness direction of the metal layers.
7 more elements
Dependencies are inferred from the claim text.