EP 1243884 A2 20020925 - Heat exchanger tube
Title (en)
Heat exchanger tube
Title (de)
Wärmetauscherrohr
Title (fr)
Tube d'échangeur de chaleur
Publication
Application
Priority
US 81450801 A 20010322
Abstract (en)
A folded heat exchanger tube (10) of the type that is rigidified with a pair of abutted 90 degree walls (16) extending along the interior length thereof, so as to join the lower (12) and upper (14) walls thereof, has a separate inner web member (20) anchored and fixed inside between a pair of curved, out turned feet (18) on the abutted walls (16) and the inner surface of the lower wall (12). A widened and flattened central channel (24) in the web (20) is engaged by the under surfaces of the curved feet (18), and is approximately as wide as the total width of the tow feet (18). <IMAGE>
IPC 1-7
IPC 8 full level
F28D 1/03 (2006.01); F28F 1/02 (2006.01); F28F 1/42 (2006.01); F28F 3/02 (2006.01)
CPC (source: EP US)
B21C 37/225 (2013.01 - EP US); F28D 1/0391 (2013.01 - EP US); F28F 3/025 (2013.01 - EP US)
Citation (applicant)
- US 4470452 A 19840911 - RHODES EUGENE E [US]
- JP S5766389 A 19820422 - TOKYO SHIBAURA ELECTRIC CO
- US 2757628 A 19560807 - JOHNSTON HAL C
- US 4633056 A 19861230 - SCHLOSSER WERNER [DE]
- GB 1149923 A 19690423 - KARL STEN BERTIL LUNDBERG
- JP S63242432 A 19881007 - CALSONIC CORP
- US 6004461 A 19991221 - HARRIS RONALD B [US]
- US 5441106 A 19950815 - YUKITAKE TAIZO [GB]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1243884 A2 20020925; EP 1243884 A3 20021009; EP 1243884 B1 20060322; DE 60209994 D1 20060511; DE 60209994 T2 20060907; JP 2002327994 A 20021115; JP 3631214 B2 20050323; US 2004182559 A1 20040923
DOCDB simple family (application)
EP 02075849 A 20020305; DE 60209994 T 20020305; JP 2002060495 A 20020306; US 81450801 A 20010322