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Title:
HEAT EXCHANGER, HEADER TANK OF HEAT EXCHANGER, AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2008224057
Kind Code:
A
Abstract:

To sufficiently secure brazing strength of a tube to a plate portion without increasing a plate thickness of the plate portion of a header tank in a heat exchanger.

A projecting portion 41 is formed on a plate portion 32 of the header tank 30, a tube insertion hole 42 is formed on the projecting portion 41, a tube insertion depth of the tube insertion hole 42 is expanded to be more than the plate thickness of the plate portion 32 by the projection of the projecting portion 41, and a tube 21 is brazed to the plate portion 32 while applying the tube insertion depth of the tube insertion hole 42 as a brazing margin b.


Inventors:
KAWAI YOSHIHIRO
Application Number:
JP2007000059008
Publication Date:
September 25, 2008
Filing Date:
March 08, 2007
Export Citation:
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Assignee:
CALSONIC KANSEI CORP
International Classes:
F28F9/18; F28F9/02
Domestic Patent References:
JP2005064201A2005-03-10
JP2003114094A2003-04-18
JP2005090823A2005-04-07
JP2005221151A2005-08-18
JPH0894285A1996-04-12
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu