EP 2251622 A4 20170329 - REFRIGERATION DEVICE
Title (en)
REFRIGERATION DEVICE
Title (de)
KÜHLVORRICHTUNG
Title (fr)
DISPOSITIF DE REFROIDISSEMENT
Publication
Application
Priority
- JP 2009051235 W 20090127
- JP 2008019764 A 20080130
Abstract (en)
[origin: EP2251622A1] In a refrigeration apparatus that carries out a multistage compression refrigeration cycle, it is possible to prevent refrigerant drawn into a second-stage compression element from becoming wet, even under operation conditions in which the temperature of a heat source of the intercooler is low. An air-conditioning apparatus (1) has a two-stage compression mechanism (2); a heat source-side heat exchanger (4); 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 (2c) into a second-stage compression element (2d); and an intercooler bypass tube (9) connected to the intermediate refrigerant tube (8) so as to bypass the intercooler (7). In the air-conditioning apparatus (1), a wet prevention control is performed using the intercooler bypass tube (9) so that refrigerant does not flow to the intercooler (7) when the heat source temperature of the intercooler (7) or the outlet refrigerant temperature of the intercooler (7) is equal to or less than the saturation temperature of the refrigerant fed from the first-stage compression element (2c) to the second-stage compression element (2d).
IPC 8 full level
CPC (source: EP US)
F25B 1/10 (2013.01 - EP US); F25B 9/008 (2013.01 - EP US); F25B 13/00 (2013.01 - EP US); F25B 2309/061 (2013.01 - EP US); F25B 2313/0272 (2013.01 - EP US); F25B 2313/02741 (2013.01 - EP US); F25B 2400/04 (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); F25B 2500/28 (2013.01 - EP US); F25B 2700/21 (2013.01 - EP US)
Citation (search report)
- [Y] JP 2004116957 A 20040415 - SANYO ELECTRIC CO
- [Y] DE 2113038 A1 19720928 - HUELS CHEMISCHE WERKE AG
- [Y] JP 2000146326 A 20000526 - ISHIKAWAJIMA HARIMA HEAVY IND
- [A] US 4660384 A 19870428 - PALLANCH FRANCIS T [US]
- [A] US 4947655 A 19900814 - SHAW DAVID N [US]
- [A] DE 1428047 A1 19681128 - BASF AG
- [A] EP 0015535 A1 19800917 - MASCHF AUGSBURG NUERNBERG AG [DE]
- See references of WO 2009096372A1
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 MK MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2251622 A1 20101117; EP 2251622 A4 20170329; EP 2251622 B1 20180801; AU 2009210093 A1 20090806; AU 2009210093 B2 20110915; CN 101932891 A 20101229; CN 101932891 B 20120926; ES 2685433 T3 20181009; JP 2009180428 A 20090813; JP 5141269 B2 20130213; KR 101157802 B1 20120622; KR 20100113574 A 20101021; US 2011005269 A1 20110113; WO 2009096372 A1 20090806
DOCDB simple family (application)
EP 09705691 A 20090127; AU 2009210093 A 20090127; CN 200980103568 A 20090127; ES 09705691 T 20090127; JP 2008019764 A 20080130; JP 2009051235 W 20090127; KR 20107018246 A 20090127; US 86453909 A 20090127