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US 7,367,388 B2Granted
Evaporator for carbon dioxide air-conditioner
AssigneeCalsonic Kansei Corporation
InventorKenji Yagisawa
Life of this patent
Estimating the term…
Abstract
A core includes heat-exchange tubes and radiation fins are alternately stacked on each other. The heat-exchange tubes define refrigerant passages. A header tank is connected to the heat-exchange tubes. A partition separates the header tank into first and second header chambers to turn a refrigerant. The partition defines a communication hole allowing the first and second header chambers to communicate with each other.
Claims5
An evaporator for a carbon dioxide air-conditioner comprising:
- a core comprising:
- heat-exchange tubes and radiation fins alternately stacked on each other, the heat-exchange tubes defining refrigerant passages;
- a header tank connected to the heat-exchange tubes;
- and
- a partition separating the header tank into first and second header chambers to turn a refrigerant,
- wherein the partition defines a communication hole allowing the first and second header chambers to communicate with each other,
- wherein the heat-exchange tubes have ends projecting into the header tank, and
- wherein at least one of the ends has a communication portion which is an opening extending through the side of the tube along a longitudinal direction of the header tank.
5 more elements
An evaporator comprising:
- a core comprising:
- substantially vertically extending heat-exchange tubes and radiation fins alternately stacked on each other, each heat-exchange tube defining refrigerant passages therein and formed with an upper end opening at an upper end and an lower end opening at a lower end;
- a substantially horizontally extending upper header tank connected to the upper end openings of the heat-exchange tubes, the upper ends of the heat-exchange tubes disposed into the header tank;
- a substantially horizontally extending lower header tank connected to the lower end openings of the heat-exchange tubes;
- a partition separating at least one of the header tanks onto chambers and formed with a communication hole allowing the chambers to communicate with each other;
- and
- a communication portion which is an opening formed at one of the upper ends of the heat-exchange tubes and extending through the side thereof along a longitudinal direction of the header tank.
4 more elements
Dependencies are inferred from the claim text.