EP 4246057 A1 20230920 - REFRIGERATION CYCLE DEVICE
Title (en)
REFRIGERATION CYCLE DEVICE
Title (de)
KÄLTEKREISLAUFVORRICHTUNG
Title (fr)
DISPOSITIF À CYCLE DE RÉFRIGÉRATION
Publication
Application
Priority
JP 2020042432 W 20201113
Abstract (en)
To provide a refrigeration cycle device that has a refrigerant flow path with a structure to form a counter flow of air and refrigerant not only during cooling, but also during heating, and that allows low-pressure two-phase refrigerant to flow through a liquid pipe and can thereby reduce the amount of refrigerant needed. The refrigeration cycle device includes: an outdoor unit 1 including a compressor 5, a four-way valve 6, an outdoor heat exchanger 7, and an outdoor expansion valve 9, the four-way valve 6 being configured to switch between cooling operation and heating operation; an indoor unit 2 including an indoor heat exchanger 12 and an indoor expansion valve 14; and a gas pipe 3 and a liquid pipe 4 configured to connect the outdoor unit 1 and the indoor unit 2; and at least either one of a first bridge circuit 10 having a configuration including a plurality of flow path opening-closing units 11 to allow the refrigerant to flow through the outdoor heat exchanger 7 in the same direction both during the cooling operation and during the heating operation, and a second bridge circuit 15 having a configuration including a plurality of flow path opening-closing units 16 to allow the refrigerant to flow through the indoor heat exchanger 12 in the same direction both during the cooling operation and during the heating operation.
IPC 8 full level
F25B 13/00 (2006.01)
CPC (source: EP US)
F25B 13/00 (2013.01 - EP US); F25B 41/20 (2021.01 - US); F25B 2313/0233 (2013.01 - EP); F25B 2313/0272 (2013.01 - EP); F25B 2313/02741 (2013.01 - US)
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 4246057 A1 20230920; EP 4246057 A4 20231227; CN 116438413 A 20230714; JP 7433470 B2 20240219; JP WO2022102077 A1 20220519; US 2023358446 A1 20231109; WO 2022102077 A1 20220519
DOCDB simple family (application)
EP 20961605 A 20201113; CN 202080106920 A 20201113; JP 2020042432 W 20201113; JP 2022561802 A 20201113; US 202018044844 A 20201113