| (19) |
 |
|
(11) |
EP 1 519 133 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
08.03.2006 Bulletin 2006/10 |
| (43) |
Date of publication A2: |
|
30.03.2005 Bulletin 2005/13 |
| (22) |
Date of filing: 16.09.2004 |
|
| (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 IT LI LU MC NL PL PT RO SE SI SK TR
|
|
Designated Extension States: |
|
AL HR LT LV MK |
| (30) |
Priority: |
29.09.2003 JP 2003337294
|
| (71) |
Applicant: Sanden Corporation |
|
Isesaki-shi,
Gunma 372-8502 (JP) |
|
| (72) |
Inventors: |
|
- Sakamoto, Takenori
Isesaki-shi,
Gunma 372-8502 (JP)
- Iino, Yusuke
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) |
Heat exchanging apparatus |
(57) In a heat exchanging apparatus (1) disposing two heat exchangers (3,4) in a form
of two rows of upstream downstream sides in an air flow direction (2), each heat exchanger
(3,4) comprising a pair of header pipes (5a,6a,5b,6b), a plurality of heat transfer
tubes (7a,7b) and corrugated-type fins (8a,8b) disposed between respective adjacent
heat transfer tubes, an inlet (9) for a heat exchange medium is provided on the heat
exchanger of the downstream side, an outlet (10) for the heat exchange medium is provided
on the heat exchanger of the upstream side, and a pitch of the fins (8a) of the upstream-side
heat exchanger (3) is set larger than a pitch of the fins (8b) of the downstream-side
heat exchanger (4). A resistance against air passage as a whole of the apparatus can
be reduced, while maintaining a desirable maximum amount of heat exchange as the total
of the two rows.