EP 0283937 A1 19880928 - Flat tube for heat exchanger with inner fin inserted therein.
Title (en)
Flat tube for heat exchanger with inner fin inserted therein.
Title (de)
Flachrohr für Wärmetauscher mit eingesetzter Rippe.
Title (fr)
Tube plat pour échangeur de chaleur à ailette insérée.
Publication
Application
Priority
- JP 4391187 U 19870325
- JP 9779387 U 19870624
Abstract (en)
Aluminum flat tube for heat exchanger with an inner fin inserted therein, comprising a pair of aluminum plate members (20) with both side portions bent like a hook in the same direction to form bends (21), both nose portions formed flat, both the flat portions (22) made opposite on the same horizontal line, and with a brazing material clad at least on the outer surface, an inner fin (30) inserted when the pair of aluminum plate members (20) are put together to a flat tube (10), wherein said pair of aluminum plate members (20) are put together to have the inner fin (30) inserted therein, and then brazed with the flat portions of the bends (21) joined therefor.
IPC 1-7
IPC 8 full level
CPC (source: EP)
F28D 1/0316 (2013.01); F28D 1/0391 (2013.01); F28F 3/025 (2013.01); F28F 2275/04 (2013.01)
Citation (search report)
- [X] US 3212572 A 19651019 - OTTO HOWARD R
- [X] US 2959401 A 19601108 - BURTON JAMES C
- [Y] US 2912749 A 19591117 - BAUERNFEIND NORMAN G, et al
- [Y] GB 780045 A 19570731 - MORRIS MOTORS LTD
- [A] GB 2133525 A 19840725 - NIPPON DENSO CO
- [Y] PATENT ABSTRACTS OF JAPAN, vol. 10, no. 118 (M-475)[2175], 2nd May 1986; & JP-A-60 247 426 (SHIYOUWA ARUMINIUMU K.K.) 07-12-1985
- [A] PATENT ABSTRACTS OF JAPAN, vol. 9, no. 268 (M-424)[1991], 25th October 1985; & JP-A-60 114 698 (NIPPON DENSO K.K.) 21-06-1985
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 88104268 A 19880317