EP 2933583 A1 20151021 - HEAT PUMP-TYPE HEATING DEVICE
Title (en)
HEAT PUMP-TYPE HEATING DEVICE
Title (de)
ERWÄRMUNGSVORRICHTUNG MIT EINER WÄRMEPUMPE
Title (fr)
DISPOSITIF DE CHAUFFAGE DU TYPE POMPE À CHALEUR
Publication
Application
Priority
- JP 2012273479 A 20121214
- JP 2013081612 W 20131125
Abstract (en)
A heat pump-type heating device includes an indoor heat exchanger (26), a low-pressure side compressor (31), a high-pressure side compressor (32), a first decompressor (36) configured to decompress the refrigerant delivered from the indoor heat exchanger (26), a gas-liquid separator (38) configured to separate the refrigerant delivered from the first decompressor (36) into a gas phase and a liquid phase, a second decompressor (37) connected to the liquid-phase side of the gas-liquid separator (38) and configured to decompress the refrigerant delivered form the gas-liquid separator (38) and deliver the decompressed refrigerant to an outdoor heat exchanger (27), an injection pipeline (51) connected to the gas-phase side of the gas-liquid separator (38) and configured to guide the refrigerant delivered from the gas-liquid separator (38) to a pipeline between the low-pressure side compressor (31) and the high-pressure side compressor (32), and a control unit (46) configured to control a decompression ratio of the refrigerant in the second decompressor (37) so as to render the refrigerant that flows into the high-pressure side compressor (32) into a superheated gas state or a saturated vapor state. Provided with such configuration, it is expected to sufficiently improve the heating ability of the heat pump-type heating device.
IPC 8 full level
F25B 1/00 (2006.01); F25B 1/10 (2006.01); F25B 30/02 (2006.01)
CPC (source: EP)
F25B 1/10 (2013.01); F25B 30/02 (2013.01); F25B 41/39 (2021.01); F25B 2400/13 (2013.01); F25B 2400/23 (2013.01); F25B 2600/21 (2013.01); F25B 2600/2513 (2013.01); F25B 2700/2101 (2013.01); F25B 2700/21151 (2013.01)
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 2933583 A1 20151021; EP 2933583 A4 20160720; JP 2014119157 A 20140630; WO 2014091909 A1 20140619
DOCDB simple family (application)
EP 13862867 A 20131125; JP 2012273479 A 20121214; JP 2013081612 W 20131125