EP 2230471 A4 20110209 - REFRIGERATION DEVICE
Title (en)
REFRIGERATION DEVICE
Title (de)
KÜHLVORRICHTUNG
Title (fr)
DISPOSITIF DE RÉFRIGÉRATION
Publication
Application
Priority
- JP 2008071362 W 20081126
- JP 2007311692 A 20071130
Abstract (en)
[origin: EP2230471A1] An air-conditioning apparatus (1) uses carbon dioxide as a refrigerant, and has a two-stage compression-type compression mechanism (2), a heat source-side heat exchanger (4), an expansion mechanism (5), a usage-side heat exchanger (6), an intercooler (7) which is provided to an intermediate refrigerant tube (8) for drawing refrigerant discharged from a first-stage compression element into a second-stage compression element and which functions as a cooler of refrigerant discharged from the first-stage compression element and drawn into a second-stage compression element, and an intermediate oil separation mechanism (16) for separating from the refrigerant a refrigeration oil that accompanies the refrigerant discharged from the first-stage compression element and for returning the refrigeration oil to the intake side of the compression mechanism (2), the intermediate oil separation mechanism being provided to a section of the intermediate refrigerant tube (8) between the first-stage compression element and an inlet of the intercooler (7).
IPC 8 full level
F25B 1/10 (2006.01); F25B 1/00 (2006.01); F25B 43/02 (2006.01)
CPC (source: EP US)
F25B 1/10 (2013.01 - EP US); F25B 9/008 (2013.01 - EP US); F25B 31/004 (2013.01 - EP US); F25B 13/00 (2013.01 - EP US); F25B 2309/061 (2013.01 - EP US); F25B 2400/072 (2013.01 - EP US); F25B 2400/075 (2013.01 - EP US); F25B 2400/13 (2013.01 - EP US); F25B 2400/23 (2013.01 - EP US)
Citation (search report)
- [Y] US 2006086110 A1 20060427 - MANOLE DAN M [US]
- [Y] SU 1783260 A1
- See references of WO 2009069604A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2230471 A1 20100922; EP 2230471 A4 20110209; AU 2008330740 A1 20090604; AU 2008330740 B2 20110804; CN 101878402 A 20101103; JP 2009133585 A 20090618; KR 101157798 B1 20120619; KR 20100095601 A 20100831; US 2010242529 A1 20100930; WO 2009069604 A1 20090604
DOCDB simple family (application)
EP 08854068 A 20081126; AU 2008330740 A 20081126; CN 200880118287 A 20081126; JP 2007311692 A 20071130; JP 2008071362 W 20081126; KR 20107013329 A 20081126; US 74424908 A 20081126