EP 1128148 A3 20020320 - Heat exchanger
Title (en)
Heat exchanger
Title (de)
Wärmetauscher
Title (fr)
Echangeur de chaleur
Publication
Application
Priority
JP 2000054428 A 20000225
Abstract (en)
[origin: EP1128148A2] A heat exchanger, in which the space (110a) in each of a plurality of tubes (110) is segmented by a partitioning wall (111), and dimples (protrusions) (112) are formed on the inner wall of the tubes (110), is disclosed. The substantial sectional area of the flow path, which has a large effect on the flow velocity in the tubes (110), can thus be reduced without increasing the total number of the tubes (110). Even in the case where the radiation area is enlarged by increasing the long diameter of the tube (110), therefore, a turbulent flow of the cooling water can be obtained in collaboration with the agitating action of the dimples (112). In this way, the reduction in heat transfer coefficient between the cooling water and the tubes (110) can be prevented. As a result, the radiation capacity of the radiator (100) can be improved while suppressing the increase in the number of the parts and the production cost of the radiator (100), thereby producing a radiator suitable for large automotive vehicles. <IMAGE>
IPC 1-7
IPC 8 full level
F28D 1/03 (2006.01)
CPC (source: EP)
F28D 1/0391 (2013.01)
Citation (search report)
- [X] EP 0632245 A1 19950104 - THERMAL WAERME KAELTE KLIMA [DE]
- [X] DE 19548495 A1 19970626 - VALEO KLIMATECH GMBH & CO KG [DE]
- [X] DE 19819248 C1 19990429 - VALEO KLIMATECH GMBH & CO KG [DE]
- [XA] PATENT ABSTRACTS OF JAPAN vol. 018, no. 538 (M - 1686) 13 October 1994 (1994-10-13)
- [X] PATENT ABSTRACTS OF JAPAN vol. 1995, no. 04 31 May 1995 (1995-05-31)
- [X] PATENT ABSTRACTS OF JAPAN vol. 1998, no. 11 30 September 1998 (1998-09-30)
- [X] PATENT ABSTRACTS OF JAPAN vol. 1996, no. 11 29 November 1996 (1996-11-29)
- [X] PATENT ABSTRACTS OF JAPAN vol. 013, no. 473 (M - 884) 26 October 1989 (1989-10-26)
- [A] PATENT ABSTRACTS OF JAPAN vol. 1998, no. 06 30 April 1998 (1998-04-30)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1128148 A2 20010829; EP 1128148 A3 20020320; EP 1128148 B1 20040421; BR 0100661 A 20011009; DE 60102847 D1 20040527; DE 60102847 T2 20050331
DOCDB simple family (application)
EP 01103635 A 20010222; BR 0100661 A 20010220; DE 60102847 T 20010222