(19)
(11) EP 1 329 675 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.11.2003 Bulletin 2003/46

(43) Date of publication A2:
23.07.2003 Bulletin 2003/30

(21) Application number: 02023361.5

(22) Date of filing: 18.10.2002
(51) International Patent Classification (IPC)7: F25B 13/00, F25B 40/00, F25B 43/00
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 21.01.2002 KR 2002003326

(71) Applicant: LG ELECTRONICS INC.
Seoul (KR)

(72) Inventors:
  • Jang, Won-Jae
    Sosa-Ku, Bucheon, Gyeonggi-Do (KR)
  • Choi, Chang-Min
    Gwanak-Ku, Seoul (KR)

(74) Representative: Cohausz & Florack 
Patentanwälte Kanzlerstrasse 8a
40472 Düsseldorf
40472 Düsseldorf (DE)

   


(54) Refrigerating cycle of air-conditioner


(57) A refrigerating cycle of an air-conditioner includes: a compressor 4 for compressing a refrigerant; an outdoor heat exchanger 8 disposed outdoors and used as a condenser or an evaporator; indoor heat exchangers 2 disposed indoors and performing an air-cooling/heating operation; expansion valves 10 and 12 installed between the outdoor heat exchanger 8 and the indoor heat exchanger 2 and changing a refrigerant to a low temperature and a low pressure state; and an accumulator/receiver assembly 16 in which a receiver unit 30 for separating oil contained in the refrigerant supplied to the evaporator and an accumulator unit 42 for supplying only a gas refrigerant to the compressor 4 are formed as one body for a heat exchange. As the liquid refrigerant supplied to the evaporator is overcooled and the gas refrigerant supplied to the compressor is overheated, even if the refrigerant pipe is formed long, the compression lowering of the refrigerant can be prevented and thus the compressor can be protected.






Search report