Title:
AIR CONDITIONER
Document Type and Number:
Japanese Patent JP2979926
Kind Code:
B2
Abstract:
PURPOSE: To prevent a decrease in heating capacity at the time of a low atmospheric temperature even with non-azeotrope refrigerant by disposing part of a first refrigerant channel group at a windward side, setting a channel sectional area of the first channel smaller than that of a second refrigerant channel group, and setting a ratio of the first channel larger at an outdoor heat exchanger than that of an indoor heat exchanger.
CONSTITUTION: A heat transfer tube 9a of a first refrigerant channel group is connected to a heat transfer tube 9b of a second refrigerant channel group via a T-shaped distributor 11. The tube 9a of the first group connected to a main tube 11a of the distributor 11 is disposed partly at a windward side, and a sectional area of the refrigerant channel is set to 1/2 of the tube 9b of the second channel having two refrigerant circuits connected to a branch tube 11b. Further, a ratio of the tube 9a of the first group to gross number of the tubes is set to larger than that at an outdoor heat exchanger as compared with an indoor heat exchanger 5. Thus, an extreme increase in pressure loss is suppressed to remarkably improve heating capacity at the time of a low atmospheric temperature.
Inventors:
KUDO MITSUO
FUKUSHIMA TOSHIHIKO
ITO MASAAKI
UCHIDA MARI
MATSUSHIMA HIROAKI
KOGURE HIROSHI
TAKAKU SHOJI
FUKUSHIMA TOSHIHIKO
ITO MASAAKI
UCHIDA MARI
MATSUSHIMA HIROAKI
KOGURE HIROSHI
TAKAKU SHOJI
Application Number:
JP25967793A
Publication Date:
November 22, 1999
Filing Date:
October 18, 1993
Export Citation:
Assignee:
HITACHI SEISAKUSHO KK
International Classes:
F24F1/00; F25B1/00; F25B5/00; F25B5/02; F25B6/02; F25B9/00; F25B13/00; F25B39/00; F25B39/02; F25B47/02; (IPC1-7): F25B5/02; F24F1/00; F25B5/00; F25B39/02
Domestic Patent References:
| JP6127493A |
Attorney, Agent or Firm:
Sakuta Yasuo