EP 3144600 A4 20180110 - VAPOR COMPRESSION REFRIGERATION CYCLE
Title (en)
VAPOR COMPRESSION REFRIGERATION CYCLE
Title (de)
DAMPFKOMPRESSIONSKÜHLKREISLAUF
Title (fr)
CYCLE DE RÉFRIGÉRATION À COMPRESSION DE VAPEUR
Publication
Application
Priority
JP 2014002558 W 20140515
Abstract (en)
[origin: EP3144600A1] A vapor compression refrigeration cycle that prevents decrease in a discharge temperature at an outlet of a compressor and improves operating efficiency in a field of warming and water heating is obtained. A vapor compression refrigeration cycle of the present invention is a vapor compression refrigeration cycle using HFO as refrigerant including: a compressor provided with an injection port for injecting circulating refrigerant; a pressure sensor and a temperature sensor, provided adjacent to the injection port, that measure pressure and a temperature; an expansion device that compresses and expands the refrigerant; and a controller that controls an opening degree of the expansion device based on the pressure and the temperature obtained by the pressure sensor and the temperature sensor, in which the controller controls the expansion device for causing a portion, of a P-H diagram related to the vapor compression refrigeration cycle, corresponding to a compression process to be positioned outside a saturation curve composed of a saturated liquid line and a saturated vapor line, to be positioned below critical pressure, and to be positioned on a high enthalpy region side of the saturated vapor line.
IPC 8 full level
F25B 1/00 (2006.01); F25B 13/00 (2006.01)
CPC (source: EP)
F25B 1/00 (2013.01); F25B 13/00 (2013.01); F25B 2313/02741 (2013.01); F25B 2400/13 (2013.01); F25B 2400/16 (2013.01); F25B 2600/2509 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/21151 (2013.01)
Citation (search report)
- [XY] JP H07120076 A 19950512 - MITSUBISHI ELECTRIC CORP
- [Y] JP 2006023002 A 20060126 - MITSUBISHI ELECTRIC CORP
- [A] US 2010192607 A1 20100805 - UNEZAKI FUMITAKE [JP], et al
- See also references of WO 2015173848A1
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 3144600 A1 20170322; EP 3144600 A4 20180110; JP 6038402 B2 20161207; JP WO2015173848 A1 20170420; WO 2015173848 A1 20151119
DOCDB simple family (application)
EP 14892130 A 20140515; JP 2014002558 W 20140515; JP 2016518654 A 20140515