Title:
FIN-TUBE TYPE HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2013/076907
Kind Code:
A1
Abstract:
In the present invention, at the root of fin collars there are depressions that are depressed in the direction opposite the rising direction of the fin collars. The cross-sectional shape of the depressions at the root of the fin collars is formed so as to be a circular arc that roughly follows the flange shape of a tip of the adjacent fin collar, and as a result, gaps are reduced and the contact surface area between a heat transfer pipe and the fin collars can be increased. Due to the foregoing, contact heat resistance is reduced, heat transfer between the heat transfer pipe and a heat transfer fin is improved, and heat exchange capabilities are improved.
Inventors:
YOKOYAMA SHOICHI
OZAKI MICHIHITO
HOSOKAWA KAORU
OZAKI MICHIHITO
HOSOKAWA KAORU
Application Number:
PCT/JP2012/006625
Publication Date:
May 30, 2013
Filing Date:
October 17, 2012
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
F28F1/32
Foreign References:
| JP2008232499A | 2008-10-02 | |||
| JPS503164U | 1975-01-14 | |||
| JPH09119792A | 1997-05-06 | |||
| JPS587083U | 1983-01-18 | |||
| JPH0587480A | 1993-04-06 | |||
| JPS4893137A | 1973-12-03 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
Mutsumi Sameshima (JP)
Mutsumi Sameshima (JP)
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