EP 3816544 A4 20210623 - REFRIGERATION CYCLE DEVICE
Title (en)
REFRIGERATION CYCLE DEVICE
Title (de)
KÄLTEKREISLAUFVORRICHTUNG
Title (fr)
DISPOSITIF À CYCLE DE RÉFRIGÉRATION
Publication
Application
Priority
- JP 2018119779 A 20180625
- JP 2019025058 W 20190625
Abstract (en)
[origin: EP3816544A1] A refrigeration cycle apparatus (1) includes a heat-source unit (2) and a utilization unit (4a, 4b) that are connected to each other via a gas-refrigerant connection pipe (5) and a liquid-refrigerant connection pipe (6) and thereby constitute a refrigerant circuit (7). Carbon dioxide is enclosed as a refrigerant in the refrigerant circuit (7). In the refrigeration cycle apparatus (1), to reduce the amount of the refrigerant enclosed in the refrigerant circuit (7), a pipe whose inner diameter is 6.2 mm or less is used as the gas-refrigerant connection pipe (5), and/or a pipe whose inner diameter is 3.6 mm or less is used as the liquid-refrigerant connection pipe (6).
IPC 8 full level
F25B 41/00 (2021.01); F24F 1/32 (2011.01); F25B 1/00 (2006.01); F25B 9/00 (2006.01); F25B 13/00 (2006.01); F25B 41/40 (2021.01)
CPC (source: EP)
F25B 9/008 (2013.01); F25B 13/00 (2013.01); F25B 41/40 (2021.01); F25B 2309/061 (2013.01); F25B 2313/0233 (2013.01); F25B 2400/13 (2013.01); F25B 2500/01 (2013.01); F25B 2500/17 (2013.01)
Citation (search report)
- [XI] JP 2008032275 A 20080214 - DAIKIN IND LTD
- [A] EP 1162412 A1 20011212 - DAIKIN IND LTD [JP]
Designated contracting state (EPC)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3816544 A1 20210505; EP 3816544 A4 20210623; JP 2020003086 A 20200109; WO 2020004360 A1 20200102
DOCDB simple family (application)
EP 19825963 A 20190625; JP 2018119779 A 20180625; JP 2019025058 W 20190625