EP 3399268 A1 20181107 - HEAT EXCHANGER
Title (en)
HEAT EXCHANGER
Title (de)
WÄRMETAUSCHER
Title (fr)
ÉCHANGEUR DE CHALEUR
Publication
Application
Priority
JP 2015086562 W 20151228
Abstract (en)
Wave-like concaves/ convexes 34 and 36 are formed on respective flat surfaces 33 and 35 of a heat exchange tube 30, such that crest lines 34a and 36a of continuing V shapes in a horizontal direction and trough lines 34b and 36b of continuing V shapes in the horizontal direction are alternately arranged and that bends of the V shapes form curve lines. This configuration reduces the stress concentration at the bends in a press-forming process, compared with a configuration that crest lines and trough lines have bends formed in a shape of continuing sharply-angled V shapes in the horizontal direction. As a result, this configuration increases the yield in the press-forming process at a fixed amplitude of the wave-like concaves/ convexes 34 and 36 and increases the amplitude of the wave-like concaves/ convexes 34 and 36 at a fixed yield in the press-forming process.
IPC 8 full level
F28D 1/053 (2006.01); F28F 1/06 (2006.01); F28F 3/04 (2006.01)
CPC (source: EP US)
F28D 9/0006 (2013.01 - EP US); F28D 9/0043 (2013.01 - EP US); F28F 1/06 (2013.01 - EP US); F28F 1/08 (2013.01 - EP US); F28F 1/12 (2013.01 - US); F28F 1/34 (2013.01 - EP US); F28F 3/04 (2013.01 - EP US); F28F 3/046 (2013.01 - EP US); F28D 1/05358 (2013.01 - EP US); F28F 1/04 (2013.01 - EP US); F28F 1/126 (2013.01 - EP US); F28F 1/26 (2013.01 - EP US); F28F 1/422 (2013.01 - EP 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
DOCDB simple family (publication)
EP 3399268 A1 20181107; EP 3399268 A4 20190828; CN 108700384 A 20181023; JP WO2017115436 A1 20181018; US 2018372425 A1 20181227; WO 2017115436 A1 20170706
DOCDB simple family (application)
EP 15912102 A 20151228; CN 201580085593 A 20151228; JP 2015086562 W 20151228; JP 2017558830 A 20151228; US 201516066887 A 20151228