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US 2003/0213587 A1Published application
Heat exchanger with dual heat-exchanging portions
AssigneeDenso Corporation
InventorsTakamitsu Mano, Tatsuo Ozaki
Life of this patent
Estimating the term…
Abstract
Separators are prevented from being moved from a correct position before completion of soldering. After calking portions 31a, 32a, 43 are plastically deformed and the separator 31, 32 are mechanically fixed on a header tank 40 by calking, the separators 31, 32 are coupled to the header tank 40 by soldering. Thereby, as the separators 31, 32 are prevented from being moved from the correct position with respect to the header tank 40 before completion of soldering, it is possible to prevent defects in soldering where gaps are created in coupled portions.
Claims15
A heat exchanger comprising:
- a plurality of first tubes through which a first fluid flows;
- a plurality of second tubes which are arranged in parallel with the first tubes and through which a second fluid flows;
- header tanks which are provided on the both longitudinal ends of the both tubes, extend in a perpendicular direction to the extending direction of the both tubes, and communicate with the both tubes;
- two separators which separate a space in the header tank into a first space communicating with the first tubes and a second space communicating with the second tubes and, at the same time, separate the first and second spaces from each other at a desired distance;
- wherein
- on at least one of the two separators and the header tank, calking portions are provided;
- and wherein
- the calking portions come into contact with the other of the two separators or the header tank and fix the two separators to the header tank.
5 more elements
A heat exchanger comprising:
- a plurality of first tubes through which a first fluid flows;
- a plurality of second tubes which are arranged in parallel with the first tubes and through which a second fluid flows;
- header tanks which are provided on both longitudinal ends of both tubes, extend in a perpendicular direction to the extending direction of the both tubes, and communicate with the both tubes;
- a separator formed in a substantially U-shape and having two separating portions, which separate a space in the header tank into a first space communicating with the first tubes and a second space communicating with the second tubes and separate the first and second spaces from each other at a desired distance, and a connecting portion connecting the separating portions;
- wherein
- on at least one of the two separating portions and the header tank, calking portions are provided;
- and wherein
- the calking portions come into contact with the other of the two separating portions or the header tank and fix the two separating portions to the header tank.
5 more elements
A heat exchanger comprises:
- a plurality of first tubes through which a first fluid flows;
- a plurality of second tubes which are arranged in parallel with the first tubes and through which a second fluid flows;
- header tanks which are provided on the both longitudinal ends of the both tubes, extend in a perpendicular direction to the extending direction of the both tubes, and communicate with the both tubes;
- at least a separator which separates a space in the header tank into a first space communicating with the first tubes and a second space communicating with the second tubes and, at the same time, separates the first and second spaces from each other at a desired distance;
- and
- a valve able to open and close, which is provided on the at least a separator and communicates the inside of the header tank with the outside thereof.
3 more elements
A heat exchanger comprising:
- a plurality of first tubes through which a first fluid flows;
- a plurality of second tubes which are arranged in parallel with the first tubes and through which a second fluid flows;
- header tanks which are provided on the both longitudinal ends of the both tubes, extend in a perpendicular direction to the extending direction of the both tubes, and communicate with the both tubes;
- a first and second separators which separate a space in the header tank into a first space communicating with the first tubes and a second space communicating with the second tubes and, at the same time, separate the first and second spaces from each other at a desired distance;
- wherein
- each of the first separator and the second separator has a soldered surface formed by folding the outer circumferential portion of a plate member coated with solders and coupled to the wall surface of the header tank by soldering;
- wherein
- an aperture into which the two separators are inserted is provided on the header tank;
- and wherein
- the dimension (h) of the portion of the aperture in parallel with the longitudinal side of the header tank is larger than the sum of the dimension (t1) of the portion of the soldered surface of the first separator in parallel with the longitudinal side of the header tank and the dimension (t2) of the portion of the soldered surface of the second separator in parallel with the longitudinal side of the header tank.
7 more elements
Dependencies are inferred from the claim text.