EP 3128256 A4 20171227 - HEAT PUMP SYSTEM
Title (en)
HEAT PUMP SYSTEM
Title (de)
WÄRMEPUMPENSYSTEM
Title (fr)
SYSTÈME DE POMPE À CHALEUR
Publication
Application
Priority
JP 2014056149 W 20140310
Abstract (en)
[origin: EP3128256A1] The present invention has an object to provide a heat pump system that prevents accumulation of a liquid refrigerant inside a sealed container in a low-heating operation. The heat pump system of the present invention includes a compressor having a first intake passage for leading a low-pressure refrigerant to a compressing element in the sealed container, a first discharge passage for discharging a high-pressure refrigerant compressed in a compressing element, a second intake passage for guiding the high-pressure refrigerant that has exchanged heat after being discharged from the first discharge passage to the internal space of the sealed container without compression, and a second discharge passage for discharging the high-pressure refrigerant in the internal space of the sealed container, a first heat exchanger for heating an object fluid by heat of the high-pressure refrigerant discharged from the first discharge passage, a second heat exchanger for heating the object fluid by heat of the high-pressure refrigerant discharged from the second discharge passage, and control means for performing a high-heating operation and the low-heating operation with a heating power smaller than that of the high-heating operation, and the control means controls, in the low-heating operation, so that a state of the refrigerant in the second intake passage is in a superheated gas state.
IPC 8 full level
F25B 1/00 (2006.01); F24D 17/02 (2006.01); F24D 19/10 (2006.01); F24H 1/00 (2006.01); F25B 6/04 (2006.01); F25B 31/00 (2006.01); F25B 40/00 (2006.01); F25B 49/02 (2006.01)
CPC (source: EP US)
F24D 17/02 (2013.01 - EP); F24D 19/1054 (2013.01 - EP US); F24H 15/219 (2022.01 - EP US); F24H 15/227 (2022.01 - EP US); F24H 15/242 (2022.01 - EP US); F24H 15/335 (2022.01 - EP US); F24H 15/38 (2022.01 - EP US); F24H 15/385 (2022.01 - EP US); F24H 15/421 (2022.01 - EP US); F25B 31/006 (2013.01 - EP); F25B 40/00 (2013.01 - EP); F25B 49/02 (2013.01 - EP); F24D 2200/123 (2013.01 - EP); F25B 6/04 (2013.01 - EP); F25B 2339/047 (2013.01 - EP); F25B 2400/0403 (2013.01 - EP); F25B 2700/2115 (2013.01 - EP); F25B 2700/21152 (2013.01 - EP); F25B 2700/21161 (2013.01 - EP)
Citation (search report)
- [IAY] JP H0473553 A 19920309 - SANYO ELECTRIC CO
- [A] JP 2006132427 A 20060525 - MITSUBISHI ELECTRIC CORP
- [A] JP 2005134070 A 20050526 - MATSUSHITA ELECTRIC IND CO LTD
- [Y] JP 2011021828 A 20110203 - MITSUBISHI ELECTRIC CORP
- [Y] JP H07294025 A 19951110 - NIPPON KENTETSU CO LTD, et al
- See references of WO 2015136595A1
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
DOCDB simple family (publication)
EP 3128256 A1 20170208; EP 3128256 A4 20171227; JP 6233499 B2 20171122; JP WO2015136595 A1 20170406; WO 2015136595 A1 20150917
DOCDB simple family (application)
EP 14885644 A 20140310; JP 2014056149 W 20140310; JP 2016507142 A 20140310