| (19) |
 |
|
(11) |
EP 1 610 080 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
13.12.2006 Bulletin 2006/50 |
| (43) |
Date of publication A2: |
|
28.12.2005 Bulletin 2005/52 |
| (22) |
Date of filing: 14.06.2005 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI
SK TR |
|
Designated Extension States: |
|
AL BA HR LV MK YU |
| (30) |
Priority: |
22.06.2004 JP 2004183613
|
| (71) |
Applicant: Sanden Corporation |
|
Isesaki-shi,
Gunma 372-8502 (JP) |
|
| (72) |
Inventors: |
|
- Chiba, Tomohiro
Isesaki-shi
Gunma 372-8502 (JP)
- Ohno, Takayuki
Isesaki-shi
Gunma 372-8502 (JP)
- Kazari, Kengo
Isesaki-shi
Gunma 372-8502 (JP)
|
| (74) |
Representative: Haley, Stephen |
|
Gill Jennings & Every LLP
Broadgate House
7 Eldon Street
London EC2M 7LH
London EC2M 7LH (GB) |
|
| |
|
| (54) |
Stacking-type, multi-flow, heat exchangers and methods for manufacturing such heat
exhangers |
(57) A stacking-type, multi-flow, heat exchanger (1) includes heat transfer tubes (2)
and outer fins (3) stacked alternatively. Each heat transfer tube (2) is formed by
connecting a pair of tube plates (30), and each heat transfer tube includes a raised
portion (45,46) fixing the pair of tube plates (30) to each other. The raised portions
(45,46) are formed by elongating or raising a portion of the pair of tube plates (30)
substantially simultaneously at a position at which a pair of holes (41), each of
which is formed through one tube plate (30) beforehand, are aligned. Complicated steps,
such as inserting a raised portion into a hole, are not necessary. The number of types
of tube plates (30) also may be reduced. Moreover, the efficiency of assembling a
heat transfer tube when fixing a pair of tube plates to each other may be significantly
increased.