EP 2788705 B1 20170301 - METHOD OF FORMING HEAT EXCHANGER TUBES
Title (en)
METHOD OF FORMING HEAT EXCHANGER TUBES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON WÄRMETAUSCHERROHREN
Title (fr)
PROCÉDÉ DE FORMATION DE TUBES D'ÉCHANGEUR DE CHALEUR
Publication
Application
Priority
- US 201161568424 P 20111208
- US 2012066822 W 20121128
Abstract (en)
[origin: WO2013085771A1] A heat exchange tube (10) for a refrigerant-flooded evaporator includes a tube (12) body and a plurality of channels (14) for conveying a cooling medium therethrough located in the tube body. One or more outer wall textural elements are included at the outer wall (26) of the tube body to improve thermal energy transfer between the cooling medium and a volume of boiling refrigerant. A method of forming a heat exchange tube for a refrigerant-flooded evaporator includes urging a billet (16) into an extrusion section (22) and forming the billet into two tube halves (24) including an outer wall and an inner wall (28) having a plurality of channel halves (30). A textural element is formed at one or more of the outer wall and the inner wall via one or more rotating dies (34), and the two tube halves are joined to form the heat exchange tube.
IPC 8 full level
B21C 23/08 (2006.01); F28F 1/02 (2006.01); F28F 1/42 (2006.01); F28F 13/18 (2006.01)
CPC (source: EP US)
B21C 23/085 (2013.01 - EP US); B21D 53/06 (2013.01 - US); F25B 39/02 (2013.01 - EP US); F28F 1/022 (2013.01 - EP US); F28F 1/12 (2013.01 - US); F28F 1/422 (2013.01 - EP US); F28F 3/12 (2013.01 - US); F28F 13/187 (2013.01 - EP US); F28F 2260/02 (2013.01 - EP US); Y10T 29/49377 (2015.01 - 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
DOCDB simple family (publication)
WO 2013085771 A1 20130613; CN 103998890 A 20140820; CN 103998890 B 20190716; EP 2788705 A1 20141015; EP 2788705 B1 20170301; US 2014366573 A1 20141218
DOCDB simple family (application)
US 2012066822 W 20121128; CN 201280060263 A 20121128; EP 12799430 A 20121128; US 201214363932 A 20121128