EP 0495762 A1 19920722 - A heat exchanger element.
Title (en)
A heat exchanger element.
Title (de)
Wärmetauschelement.
Title (fr)
Elément d'échange de chaleur.
Publication
Application
Priority
SE 9100124 A 19910115
Abstract (en)
A heat exchanger element comprises three parallel tubes (11), which to a considerable part of their lengths are cast into a body (12) of a metal having good heat transferring properties and having a rectangular cross section. Within the portion of the tubes (11) enclosed by the body, the tubes are externally provided with helical rills (15), running in opposite directions, and are interconnected by tack welding outside the expected body, before the casting operation. The side faces of the body (12) are subdivided by means of transverse and longitudinal grooves (18, 19a, 19b), so heat transferring enlarging members (17) as truncated pyramids are formed. Members in adjacent rows are displaced sidewardly, so a zig zag pattern is formed, which causes turbulence in the second heat transporting medium flowing along the body. <IMAGE>
IPC 1-7
IPC 8 full level
B22D 19/00 (2006.01); B23K 9/00 (2006.01); F28F 1/12 (2006.01); F28F 7/02 (2006.01); F28F 9/24 (2006.01)
CPC (source: EP)
Citation (search report)
- [AD] EP 0153363 A1 19850904 - OSTBO KARL
- [A] US 2606992 A 19520812 - MACDONALD HARRY F
- [A] US 2405722 A 19460813 - VILLIER CHARLES J
- [A] US 1840651 A 19320112 - BASSLER EDWIN M
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0495762 A1 19920722; EP 0495762 B1 19940316; AT E103063 T1 19940415; DE 69200068 D1 19940421; DE 69200068 T2 19940825; ES 2056702 T3 19941001; JP H06134565 A 19940517; JP H0798260 B2 19951025; SE 467803 B 19920914; SE 9100124 D0 19910115; SE 9100124 L 19920716
DOCDB simple family (application)
EP 92850005 A 19920113; AT 92850005 T 19920113; DE 69200068 T 19920113; ES 92850005 T 19920113; JP 383692 A 19920113; SE 9100124 A 19910115