(19)
(11) EP 3 208 557 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
04.10.2017 Bulletin 2017/40

(88) Date of publication A3:
23.08.2017 Bulletin 2017/34

(43) Date of publication:
23.08.2017 Bulletin 2017/34

(21) Application number: 16185220.7

(22) Date of filing: 19.04.2013
(51) International Patent Classification (IPC): 
F25B 13/00(2006.01)
 F25B 49/02(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 23.05.2012 JP 2012117801
18.12.2012 JP 2012276151

(62) Application number of the earlier application in accordance with Art. 76 EPC:
13793423.8 / 2878901

(71) Applicant: DAIKIN INDUSTRIES, LIMITED
Osaka-shi, Osaka 530-8323 (JP)

(72) Inventors:
  • KAWANO, Satoshi
    Osaka-shi, Osaka 530-8323 (JP)
  • MATSUOKA, Shinya
    Osaka-shi, Osaka 530-8323 (JP)
  • OKA, Masahiro
    Osaka-shi, Osaka 530-8323 (JP)

(74) Representative: Global IP Europe Patentanwaltskanzlei 
Pfarrstraße 14
80538 München
80538 München (DE)

 
Remarks:
This application was filed on 22-08-2016 as a divisional application to the application mentioned under INID code 62.
 


(54) AIR CONDITIONING APPARATUS


(57) Provided is an air conditioning apparatus that uses R32 for the refrigerant, and that is capable of injection in order to suppress the discharge temperature even in the case in which operating efficiency deteriorates by intermediate injection. An air conditioning apparatus (10) that uses R32 refrigerant is provided with a compressor (20), an indoor heat exchanger (50), an outdoor expansion valve (41), an outdoor heat exchanger (30), an intermediate injection channel (65), a suction injection channel (67) and injection switching valves (66, 68). The intermediate injection channel (65) causes a part of the refrigerant flowing in a main refrigerant channel (11a) to merge with intermediate-pressure refrigerant of the compressor (20). The suction injection channel (67) guides a part of the refrigerant in the main refrigerant channel (11a) to a suction passage (27).