EP 3246637 B1 20210616 - REFRIGERATION CYCLE DEVICE
Title (en)
REFRIGERATION CYCLE DEVICE
Title (de)
KÄLTEKREISLAUFVORRICHTUNG
Title (fr)
DISPOSITIF À CYCLE FRIGORIFIQUE
Publication
Application
Priority
JP 2015051068 W 20150116
Abstract (en)
[origin: EP3246637A1] There are included: a main circuit 30 in which a compressor 1, a condenser 3, a main expansion valve 4, and an evaporator 5 are connected in a circle, and through which refrigerant having a higher boiling point than R407C circulates; a bypass 40 (a discharged gas bypass 6 and a suction bypass 8) configured to combine a flow of part of refrigerant discharged from the compressor 1 and a flow of refrigerant having flowed out of the condenser 3 into a combined flow to allow the combined flow to flow into a suction side of the compressor 1; a negative pressure regulating valve (a discharged gas bypass valve 7) configured to regulate a flow rate in the bypass 40; and a negative pressure prevention control unit 20a configured to perform a negative pressure prevention operation of controlling the negative pressure regulating valve 7 to prevent a suction pressure of the compressor 1 from becoming negative.
IPC 8 full level
F25B 1/00 (2006.01); F25B 13/00 (2006.01); F25B 29/00 (2006.01); F25B 47/02 (2006.01); F25B 49/02 (2006.01)
CPC (source: EP US)
F25B 13/00 (2013.01 - EP US); F25B 47/025 (2013.01 - EP); F25B 49/02 (2013.01 - EP); F25B 2339/047 (2013.01 - EP); F25B 2341/0011 (2013.01 - EP); F25B 2400/04 (2013.01 - EP); F25B 2400/0403 (2013.01 - EP); F25B 2400/0409 (2013.01 - EP); F25B 2500/19 (2013.01 - EP); F25B 2600/0272 (2013.01 - EP); F25B 2600/2501 (2013.01 - EP); F25B 2700/1933 (2013.01 - EP); F25B 2700/21151 (2013.01 - EP)
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 3246637 A1 20171122; EP 3246637 A4 20181226; EP 3246637 B1 20210616; JP 6275283 B2 20180207; JP WO2016113899 A1 20170713; WO 2016113899 A1 20160721
DOCDB simple family (application)
EP 15877851 A 20150116; JP 2015051068 W 20150116; JP 2016569194 A 20150116