EP 2219001 A1 20100818 - Corrugated tube with elliptical cross-section
Title (en)
Corrugated tube with elliptical cross-section
Title (de)
Wellpappenleitung mit elliptischem Querschnitt
Title (fr)
Tube ondulé doté d'une section transversale elliptique
Publication
Application
Priority
EP 09290111 A 20090213
Abstract (en)
A corrugated tube (1; 21), with a corrugated inner surface (31) and a corrugated outer surface (32), is characterized in that the outer cross section (5a-5d; 43) of the corrugated tube (1; 21) is of elliptical or substantially elliptical shape. The invention provides a tube, in particular for use in a heat exchanging device, with an improved heat transfer efficiency.
IPC 8 full level
CPC (source: EP)
Citation (search report)
- [XYI] WO 0118406 A1 20010315 - BROWN FINTUBE [US]
- [X] DE 102007011635 A1 20070913 - BEIJING U BRIDGE LLC CHAOYANG [CN]
- [X] WO 2005068062 A1 20050728 - BASF AG [DE], et al
- [XI] GB 398154 A 19330907 - BBC BROWN BOVERI & CIE
- [X] FR 2906355 A1 20080328 - VALEO SYSTEMES THERMIQUES [FR]
- [X] SU 1386843 A1 19880407 - INST FIZ TEKHN ENERGETIKI AN L [SU], et al
- [YA] FR 2676533 A1 19921120 - VALEO THERMIQUE MOTEUR SA [FR]
- [A] US 2007246206 A1 20071025 - GONG YING [US], et al
Designated contracting state (EPC)
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 TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 09290111 A 20090213