EP 4177539 A1 20230510 - REFRIGERATION DEVICE
Title (en)
REFRIGERATION DEVICE
Title (de)
KÜHLVORRICHTUNG
Title (fr)
DISPOSITIF DE RÉFRIGÉRATION
Publication
Application
Priority
- JP 2020116676 A 20200706
- JP 2021025511 W 20210706
Abstract (en)
An object is to provide a novel multi-stage refrigeration apparatus. The object is achieved by a refrigeration apparatus comprising a user-side heat transfer cycle that includes a user-side compressor, a user-side heat exchanger, a user-side pressure-reducing device, and a user-side cascade heat exchanger, and that circulates a user-side refrigerant; a heat-source-side heat transfer cycle that includes a heat-source-side compressor, a heat-source-side heat exchanger, a heat-source-side pressure-reducing device, and a heat-source-side cascade heat exchanger, and that circulates a heat-source-side refrigerant; a cascade heat exchanger configured to exchange heat between the user-side refrigerant of a user-side condenser and the heat-source-side refrigerant of a heat-source-side evaporator; and a control device, the user-side refrigerant having a boiling point of -30°C or more and 25°C or less, and the heat-source-side refrigerant having a boiling point of -55°C or more and less than -30°C.
IPC 8 full level
CPC (source: EP US)
F25B 7/00 (2013.01 - EP); F25B 9/002 (2013.01 - US); F25B 9/10 (2013.01 - US); F25B 49/022 (2013.01 - EP); F25B 25/005 (2013.01 - EP); F25B 2400/12 (2013.01 - US); F25B 2400/121 (2013.01 - EP); F25B 2600/0253 (2013.01 - EP); F25B 2700/1933 (2013.01 - EP); F25B 2700/21152 (2013.01 - EP); F25B 2700/21163 (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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4177539 A1 20230510; CN 115885139 A 20230331; JP 2022014455 A 20220119; JP 2022125358 A 20220826; JP 7216151 B2 20230131; US 2023135967 A1 20230504; WO 2022009898 A1 20220113
DOCDB simple family (application)
EP 21838192 A 20210706; CN 202180048552 A 20210706; JP 2021025511 W 20210706; JP 2021111974 A 20210706; JP 2022111190 A 20220711; US 202218088991 A 20221227