EP 1804010 A3 20090527 - Air conditioner and refrigerant control method thereof
Title (en)
Air conditioner and refrigerant control method thereof
Title (de)
Klimaanlage und Kältemittelregulierungsverfahren dafür
Title (fr)
Climatiseur et procédé de contrôle réfrigérant correspondant
Publication
Application
Priority
KR 20050134477 A 20051229
Abstract (en)
[origin: EP1804010A2] Disclosed are an air conditioner and a refrigerant control method thereof. An air conditioner according to an embodiment of the invention an outdoor unit including a compressor, an outdoor heat exchanger, and a four-way valve that switches a flow passage of refrigerant, an indoor unit including an indoor heat exchanger, an indoor expansion unit disposed at a refrigerant inlet side of the indoor heat exchanger and allowing the refrigerant to be expanded during the cooling operation, an outdoor expansion unit disposed at a refrigerant inlet side of the outdoor heat exchanger and allowing the refrigerant to be expanded during the heating operation, and a control unit controlling the indoor expansion unit and the outdoor expansion unit such that the refrigerant is expanded in the indoor expansion unit during the cooling operation and the refrigerant is expanded in the outdoor expansion unit during the heating operation. Therefore, the distance between the evaporator and the expansion unit is reduced to thereby raise operating efficiency.
IPC 8 full level
F25B 13/00 (2006.01)
CPC (source: EP KR US)
F25B 5/02 (2013.01 - KR); F25B 13/00 (2013.01 - EP KR US); F25B 41/20 (2021.01 - KR); F25B 41/385 (2021.01 - EP KR US); F25B 41/40 (2021.01 - KR); F25B 49/02 (2013.01 - EP KR US); F25B 5/02 (2013.01 - EP US); F25B 2313/0233 (2013.01 - EP KR US); F25B 2400/0411 (2013.01 - EP KR US); F25B 2600/2513 (2013.01 - EP KR US)
Citation (search report)
- [X] EP 0184200 A2 19860611 - HITACHI LTD [JP]
- [X] US 4771610 A 19880920 - NAKASHIMA YASUO [JP], et al
- [X] US 5720179 A 19980224 - JUNG NACK-HUN [KR]
- [X] EP 0692683 A2 19960117 - TOSHIBA KK [JP]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1804010 A2 20070704; EP 1804010 A3 20090527; CA 2572624 A1 20070629; JP 2007183091 A 20070719; KR 100757442 B1 20070911; KR 20070071213 A 20070704; US 2007151268 A1 20070705
DOCDB simple family (application)
EP 06127265 A 20061228; CA 2572624 A 20061229; JP 2006354979 A 20061228; KR 20050134477 A 20051229; US 64554606 A 20061227