EP 2019271 A1 20090128 - REFRIGERATION SYSTEM
Title (en)
REFRIGERATION SYSTEM
Title (de)
KÜHLSYSTEM
Title (fr)
SYSTÈME DE RÉFRIGÉRATION
Publication
Application
Priority
- JP 2007059847 W 20070514
- JP 2006135300 A 20060515
Abstract (en)
There is disclosed a refrigeration apparatus capable of decreasing a load on a compressor and improving an operation efficiency. According to the present invention, in a refrigeration apparatus 1 of a so-called two-dimensional multistage system, an evaporator 34 of a high-temperature-side refrigerant circuit 25 and a condensing pipe 42 of a low-temperature-side refrigerant circuit 38 constitute a cascade heat exchanger 43, and an evaporation pipe 62 of the low-temperature-side refrigerant circuit 38 obtains an extremely low temperature. The apparatus includes an oil separator 43 provided on the discharge side of a compressor 20 of the low-temperature-side refrigerant circuit 38 so that oil is separated from non-azeotropic mixed refrigerants to return the oil to the compressor 20, and a radiator 39 interposed between the oil separator 43 and the compressor 20.
IPC 8 full level
F25B 7/00 (2006.01); F25B 1/00 (2006.01); F25B 9/00 (2006.01); F25B 40/00 (2006.01)
CPC (source: EP KR US)
F25B 7/00 (2013.01 - EP KR US); F25B 9/006 (2013.01 - EP US); F25B 40/00 (2013.01 - EP US); F25B 31/006 (2013.01 - EP US); F25B 2400/13 (2013.01 - EP US); F25D 2400/10 (2013.01 - EP US)
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 MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 2019271 A1 20090128; EP 2019271 A4 20120912; CN 101443602 A 20090527; CN 101443602 B 20120822; JP 2007303794 A 20071122; KR 101364317 B1 20140218; KR 20090014274 A 20090209; US 2010147017 A1 20100617; WO 2007132805 A1 20071122
DOCDB simple family (application)
EP 07743282 A 20070514; CN 200780017401 A 20070514; JP 2006135300 A 20060515; JP 2007059847 W 20070514; KR 20087027849 A 20070514; US 30070607 A 20070514