EP 2299227 B1 20180919 - Tubular heat exchanger
Title (en)
Tubular heat exchanger
Title (de)
Röhrenwärmetauscher
Title (fr)
Echangeur thermique tubulaire
Publication
Application
Priority
DE 102009040558 A 20090908
Abstract (en)
[origin: EP2299227A2] The heat exchanger (W) has a jacket tube (1) with an inner tube, where the inner tube and/or the jacket tube are formed as a swirl tube with multi-start spirals (D1, D2) that run like a thread at an angle to a tube axis (x). A crossed and twisted tube with crossing spirals is provided as the inner tube and/or the jacket tube, where the crossing spirals are symmetrical to the tube axis and have an angle of incidence (alpha) between 67 degrees and 72 degrees to the tube axis and an angle of twist (beta) between 18 degrees and 23 degrees perpendicular to the tube axis.
IPC 8 full level
F28D 7/10 (2006.01); F28F 1/36 (2006.01); F28F 1/40 (2006.01); F28F 1/42 (2006.01); F28F 13/12 (2006.01)
CPC (source: EP US)
F28D 7/106 (2013.01 - EP US); F28F 1/36 (2013.01 - EP US); F28F 1/40 (2013.01 - EP US); F28F 1/42 (2013.01 - EP US); F28F 1/426 (2013.01 - EP US); F28F 13/12 (2013.01 - EP US); F28D 2021/0042 (2013.01 - EP US); F28D 2021/0098 (2013.01 - EP US); F28F 19/00 (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 SE SI SK SM TR
DOCDB simple family (publication)
EP 2299227 A2 20110323; EP 2299227 A3 20161207; EP 2299227 B1 20180919; BR PI1003318 A2 20120529; CN 102012177 A 20110413; DE 102009040558 A1 20110310; ES 2691257 T3 20181126; HU E041374 T2 20190528; PL 2299227 T3 20190628; US 2011056663 A1 20110310
DOCDB simple family (application)
EP 10171888 A 20100804; BR PI1003318 A 20100906; CN 201010277173 A 20100907; DE 102009040558 A 20090908; ES 10171888 T 20100804; HU E10171888 A 20100804; PL 10171888 T 20100804; US 87534810 A 20100903