| CPC F28F 9/026 (2013.01) [F28D 1/05366 (2013.01); F28D 1/05391 (2013.01); F28D 2021/0019 (2013.01); F28F 9/0263 (2013.01); F28F 9/0265 (2013.01)] | 11 Claims |
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1. A heat exchanger comprising:
a distributor extending in a top-bottom direction in a form of a pipe and in which refrigerant flows;
a plurality of heat-transfer tubes connected to the distributor while being arranged at intervals from one another in the top-bottom direction, the heat-transfer tubes receiving the refrigerant flowing from the distributor; and
a refrigerant inflow pipe connected to the distributor at a position below a lowest one of the plurality of heat-transfer tubes and through which the refrigerant flows into the distributor,
wherein the plurality of heat-transfer tubes connected to the distributor stick out into an internal space of the distributor such that when the plurality of heat-transfer tubes and a part defined as the internal space are projected on a plane perpendicular to an axial direction of the distributor, the plurality of heat-transfer tubes occupies one-half or greater of the part defined as the internal space;
wherein the distributor
includes an orifice plate being in a form of a plate and dividing the internal space into an upper space and a lower space in a longitudinal direction of the distributor;
wherein the orifice plate is
located above the lowest one of the plurality of heat-transfer tubes in the internal space;
wherein the orifice plate has an orifice that is a through-hole through which the upper space and the lower space communicate with each other; and
wherein the orifice plate is inclined downward toward a part of an inner wall surface of the distributor, the part being opposite a position of connection between the plurality of heat-transfer tubes and the distributor.
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9. A heat exchanger comprising:
a distributor extending in a top-bottom direction in a form of a pipe and in which refrigerant flows;
a plurality of heat-transfer tubes connected to the distributor while being arranged at intervals from one another in the top-bottom direction, the heat-transfer tubes receiving the refrigerant flowing from the distributor; and
a refrigerant inflow pipe connected to the distributor at a position below a lowest one of the plurality of heat-transfer tubes and through which the refrigerant flows into the distributor,
wherein the plurality of heat-transfer tubes connected to the distributor stick out into an internal space of the distributor such that when the plurality of heat-transfer tubes and a part defined as the internal space are projected on a plane perpendicular to an axial direction of the distributor, the plurality of heat-transfer tubes occupies one-half or greater of the part defined as the internal space;
wherein the distributor
includes an orifice plate being in a form of a plate and dividing the internal space into an upper space and a lower space in a longitudinal direction of the distributor;
wherein the orifice plate is
located above the lowest one of the plurality of heat-transfer tubes in the internal space;
wherein the orifice plate has an orifice that is a through-hole through which the upper space and the lower space communicate with each other; and
wherein the orifice plate is
shaped such that an opening size of the orifice decreases from a bottom face of the orifice plate toward a top face of the orifice plate.
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10. The heat exchanger of claim 1,
wherein the orifice provided in the orifice plate is one of two or more orifices.
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