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Title:
FLUID TRANSPORTATION TUBE, MANUFACTURING METHOD AND DEVICE THEREFOR
Document Type and Number:
Japanese Patent JP2002102974
Kind Code:
A
Abstract:

To provide a fluid transportation tube whose heat exchange capacity is larger than that of ordinary structure, and a cooling device for an automobile.

After forming edge parts along two opposing edges 21, 22 of a blank 23, a structure 8 is formed on the surface of the blank 23. Then the blank is bent from both ends to form a tube.


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Inventors:
VALASZKAI LASZLO
CELIK ESAD
Application Number:
JP2000275494A
Publication Date:
April 09, 2002
Filing Date:
September 11, 2000
Export Citation:
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Assignee:
VALEO ENGINE COOLING AB
International Classes:
B60H1/32; B21D5/08; B21D31/00; B21D53/04; F28D1/053; F28F1/02; (IPC1-7): B21D53/04; B21D5/08; B21D31/00; B60H1/32; F28D1/053; F28F1/02
Domestic Patent References:
JPH11257886A1999-09-24
JP2000205776A2000-07-28
JPH1034244A1998-02-10
JPH0842985A1996-02-16
JPH04240395A1992-08-27
JPH10193013A1998-07-28
Foreign References:
WO2000052409A12000-09-08
Attorney, Agent or Firm:
Shoichi Takezawa (2 outside)



 
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