EP 4290170 A1 20231213 - 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)
A flat heat transfer tube (21) in an outdoor heat exchanger (11) includes a main body (23) and a connecting portion (25). The flat heat transfer tube (21) has a plurality of flow paths (27) spaced from each other. The flat heat transfer tube (21) has a first side portion (29a) and a second side portion (29b) spaced from each other by a width. The connecting portion (25) connected to an opening (33) of a header (31) has an opening end face (26) in which each of the flow paths (27) opens. In the connecting portion (25), the first side portion (29a) is tapered toward the opening end face (26) to be reduced in width. A first opening end (28a) of a first flow path (27a) located closest to the first side portion (29a) has a second flow path cross-sectional area (S2) smaller than a first flow path cross-sectional area (S 1) of an opening end (28) of each of other flow paths (27).
IPC 8 full level
F28F 1/02 (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)
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