Title:
HEAT EXCHANGER AND AIR CONDITIONER PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2013/084455
Kind Code:
A1
Abstract:
Provided is a fin-and-tube heat exchanger with which a combustible refrigerant is used and which comprises two or more rows of multilayered piping. In order to suppress deterioration of performance of the heat exchanger even when the heat exchanger functions as a vaporizer, radiating tubes having the same tube inner diameter are positioned within the same row. When the heat exchanger functions as the vaporizer, the inner diameters of the radiating tubes through which refrigerant with a low degree of drying are configured to be smaller than the inner diameters of the radiating tubes through which a combustible refrigerant with a high degree of drying flows, such that the degree of change of the saturation temperature is approximately equivalent with the circumstance in which R410A is used as the combustible refrigerant.
Inventors:
MARUMOTO KAZUHIKO
FUJITAKA AKIRA
YOKOYAMA SHOICHI
KAWABE YOSHIKAZU
FUJITAKA AKIRA
YOKOYAMA SHOICHI
KAWABE YOSHIKAZU
Application Number:
PCT/JP2012/007703
Publication Date:
June 13, 2013
Filing Date:
November 30, 2012
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
F25B39/02; F25B1/00
Domestic Patent References:
| WO2011148567A1 | 2011-12-01 | |||
| WO2010047116A1 | 2010-04-29 | |||
| WO2011135817A1 | 2011-11-03 |
Foreign References:
| JPH09145076A | 1997-06-06 | |||
| JPH07190517A | 1995-07-28 | |||
| JP2009257742A | 2009-11-05 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
Mutsumi Sameshima (JP)
Mutsumi Sameshima (JP)
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Claims: