EP 2770276 A4 20150722 - HEAT PUMP
Title (en)
HEAT PUMP
Title (de)
WÄRMEPUMPE
Title (fr)
POMPE À CHALEUR
Publication
Application
Priority
- JP 2011218154 A 20110930
- JP 2012006102 W 20120925
Abstract (en)
[origin: EP2770276A1] The present invention is intended to prevent a reduction in efficiency of a heat pump even if an auxiliary heat exchanger is used to control heat balance of a refrigerant circuit. A refrigerant circuit (10) is provided with an auxiliary heat exchanger (1) which exchanges heat between the refrigerant in the refrigerant circuit (10) and outdoor air. The auxiliary heat exchanger (1) is connected so as to communicate between a connection path (4) between a low-stage compressor (11) and a high-stage compressor (12) and a connection path (7) between a low-stage expansion valve (15) and a high-stage expansion valve (14).
IPC 8 full level
F25B 1/10 (2006.01); F25B 29/00 (2006.01); F25B 30/02 (2006.01); F25B 41/00 (2006.01)
CPC (source: EP)
F25B 1/10 (2013.01); F25B 30/02 (2013.01); F25B 41/00 (2013.01); F25B 41/39 (2021.01); F25B 2339/047 (2013.01); F25B 2400/13 (2013.01)
Citation (search report)
- [XAYI] JP S6387559 A 19880418 - TOSHIBA CORP
- [XY] JP 2005308375 A 20051104 - MITSUBISHI ELECTRIC CORP
- [Y] JP 2009229055 A 20091008 - DAIKIN IND LTD
- [XI] DE 3716393 A1 19871119 - COPELAND CORP [US]
- [X] JP H0229554 A 19900131 - CENTRAL RES INST ELECT
- [X] EP 2096378 A1 20090902 - PANASONIC CORP [JP]
- See references of WO 2013046647A1
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 2770276 A1 20140827; EP 2770276 A4 20150722; EP 2770276 B1 20170111; CN 103842743 A 20140604; CN 103842743 B 20160120; JP 2013076541 A 20130425; JP 5375919 B2 20131225; WO 2013046647 A1 20130404
DOCDB simple family (application)
EP 12836971 A 20120925; CN 201280045771 A 20120925; JP 2011218154 A 20110930; JP 2012006102 W 20120925