EP 1653186 A1 20060503 - FLAT TUBE FOR HEAT EXCHANGER
Title (en)
FLAT TUBE FOR HEAT EXCHANGER
Title (de)
FLACHROHR FÜR WÄRMETAUSCHER
Title (fr)
TUBE PLAT DESTINE A UN ECHANGEUR THERMIQUE
Publication
Application
Priority
- JP 2004009794 W 20040702
- JP 2003280425 A 20030725
Abstract (en)
A flat tube having a nearly B-like shape or the like in cross section, which has one or more partitions therein, and is coated with a brazing metal on the outer surface thereof, is provided. In the top portion 5 of the turned-up portion 4 constituting the partition, there are formed many slits 6, in order to provide the conditions that satisfy both of the brazing performance and an increase of working accuracy of the flat tube, which slits 6 allow the brazing metal to enter up to the top portion 5 of the turned-up portion 4, wherein the length "c" of the slit 6 is 2 mm to 15 mm; the distance "e" between the edges of the neighboring slits 6 is 3 mm to 10 mm; and "e/c" is 0.6 or more.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
F28D 1/0391 (2013.01 - EP US); F28F 2275/04 (2013.01 - EP US); Y10T 29/49391 (2015.01 - EP US)
Citation (search report)
See references of WO 2005010453A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1653186 A1 20060503; CN 100437010 C 20081126; CN 1829893 A 20060906; JP 2005043026 A 20050217; US 2006180299 A1 20060817; WO 2005010453 A1 20050203
DOCDB simple family (application)
EP 04747262 A 20040702; CN 200480021487 A 20040702; JP 2003280425 A 20030725; JP 2004009794 W 20040702; US 56591304 A 20040702