Title:
FIN-TUBE HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2013/018270
Kind Code:
A1
Abstract:
Provided is a fin-tube heat exchanger having excellent heat transfer performance. In order to achieve this performance, the heat transfer performance between air flow and a large number of the stacked fins is enhanced by providing the fins with a special shape to increase the number of ridge lines which are the lines at which surfaces intersect.
Each heat transfer fin (20) of a fin-tube heat exchanger has: an undulation section (40) which comprises protrusions and a recess; seat portions (30) which have flat surfaces concentric with fin collars (60) with which heat transfer pipes (50) are joined so as to be in close contact therewith; sloped surfaces (30a) which rise from the seat portions (30) to the undulation section (40); and intermediate protrusions (80) which are disposed in the vicinities of the fin collars (60) and which are formed by protrusion-side ridge lines extending in a line direction in the recess which extends in a tier direction.
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Inventors:
YOKOYAMA SHOICHI
Application Number:
PCT/JP2012/004172
Publication Date:
February 07, 2013
Filing Date:
June 27, 2012
Export Citation:
Assignee:
PANASONIC CORP (JP)
YOKOYAMA SHOICHI
YOKOYAMA SHOICHI
International Classes:
F28F1/32
Domestic Patent References:
| WO2007108386A1 | 2007-09-27 |
Foreign References:
| JPS56103786U | 1981-08-13 | |||
| JPS63294494A | 1988-12-01 | |||
| JP2005090939A | 2005-04-07 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
Mutsumi Sameshima (JP)
Mutsumi Sameshima (JP)
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Claims: