Title:
AIR CONDITIONER
Document Type and Number:
Japanese Patent JP3903342
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an air-conditioner capable of suppressing the cost increasing and enhancing the COP by introducing such a structure that the machine can exert the performance enhancing effect by injection to the maximum degree.
SOLUTION: The refrigeration cycle of this air-conditioner is composed of a compressor 1, a condenser 3, a first decompression device 4, an air-liquid separator 5, a second decompression device 6, and an evaporator 7 which are connected together one by one, and the air-conditioner is equipped with injection piping 9 to supply the refrigerant from the separator 5 to the compressor 1. The degree of opening of the first decompression device 4 located upstream as the refrigeration cycle or the second decompression device 5 is controlled in relation to the revolving speed of the compressor 1 and the refrigerant temperature at the inlet of the evaporator 7.
Inventors:
Atsuhiko Yokoseki
Kenji Matsumura
Yoshihiko Mochizuki
Susumu Nakayama
Fukuji Tsukada
Kenji Matsumura
Yoshihiko Mochizuki
Susumu Nakayama
Fukuji Tsukada
Application Number:
JP2003067433A
Publication Date:
April 11, 2007
Filing Date:
March 13, 2003
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F24F11/02; F25B13/00; (IPC1-7): F25B13/00; F24F11/02
Domestic Patent References:
| JP10185343A | ||||
| JP6088658A | ||||
| JP11270918A | ||||
| JP2002081769A | ||||
| JP2002089976A | ||||
| JP2002081779A |
Attorney, Agent or Firm:
Manabu Inoue