EP 4290170 A4 20240306 - HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS EQUIPPED WITH SAME
Title (en)
HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS EQUIPPED WITH SAME
Title (de)
WÄRMETAUSCHER UND KÄLTEKREISLAUFVORRICHTUNG DAMIT
Title (fr)
ÉCHANGEUR DE CHALEUR ET APPAREIL À CYCLE DE RÉFRIGÉRATION ÉQUIPÉ DE CELUI-CI
Publication
Application
Priority
JP 2021004112 W 20210204
Abstract (en)
[origin: WO2022168232A1] A flattened heat exchanger tube (21) in an outdoor heat exchanger (11) is equipped with a body part (23) and a connection part (25). The flattened heat exchanger tube (21) has a plurality of flow paths (27) spaced from each other. The flattened heat exchanger tube (21) has a first side (29a) and a second side (29b) separated by a width. The connection part (25) connected to the opening (33) of a header (31) has an opening end face (26) in which the plurality of flow paths (27) are open. At the connection part (25), the first side (29a) is formed in a tapered shape in such a manner that the width is reduced with approach towards the opening end face (26). The first opening end (28a) of a first flow path (27a) closest to the first side (29a) has a second flow path cross-sectional area (S2) that is smaller than the first flow path cross-sectional area (S1) of the opening end (28) of another flow path (27).
IPC 8 full level
F28F 1/02 (2006.01); F28D 1/053 (2006.01); F28F 9/18 (2006.01); F28F 13/08 (2006.01)
CPC (source: EP US)
F28D 1/05383 (2013.01 - EP); F28F 1/022 (2013.01 - EP); F28F 1/025 (2013.01 - EP); F28F 1/04 (2013.01 - US); F28F 9/02 (2013.01 - US); F28F 9/182 (2013.01 - EP); F28F 2255/16 (2013.01 - EP)
Citation (search report)
No further relevant documents disclosed
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 4290170 A1 20231213; EP 4290170 A4 20240306; CN 116802453 A 20230922; JP 7483062 B2 20240514; JP WO2022168232 A1 20220811; US 2024003636 A1 20240104; WO 2022168232 A1 20220811
DOCDB simple family (application)
EP 21924628 A 20210204; CN 202180091905 A 20210204; JP 2021004112 W 20210204; JP 2022579238 A 20210204; US 202118254794 A 20210204