EP 0660064 A3 19951129 - Joint for connecting a tube to an end plate in a heat exchanger.
Title (en)
Joint for connecting a tube to an end plate in a heat exchanger.
Title (de)
Rohr-Bodenverbindung für einen Wärmetauscher.
Title (fr)
Joint pour relier un tube à une plaque tubulaire d'un échangeur de chaleur.
Publication
Application
Priority
DE 4343825 A 19931222
Abstract (en)
[origin: EP0660064A2] 2.1 In tube/tube plate joints, in particular made from aluminium, problems arise with reference to the required tightness. As a rule, the tubes are soldered in passages in the plate and subsequently sealed with silicon. 2.2 It is proposed that the tube ends pushed into the tube plate be welded to the tube plate by means of a laser welded seam which extends over their entire circumference and whose inner contour merges in a flush fashion into the inner tube wall and into the side of the tube plate pointing into the interior of the collecting chamber. It is possible thereby to achieve the necessary mechanical retention and the required tightness. 2.3 Use for the radiators of motor vehicle engines. <IMAGE>
IPC 1-7
IPC 8 full level
F28F 9/18 (2006.01)
CPC (source: EP US)
F28F 9/18 (2013.01 - EP US)
Citation (search report)
- [YX] DE 3036427 A1 19810402 - HITACHI LTD [JP]
- [Y] FR 2121757 A1 19720825 - JENKINS ROBERT ET CY LTD
- [Y] EP 0326813 A1 19890809 - SUEDDEUTSCHE KUEHLER BEHR [DE]
- [Y] US 5048602 A 19910917 - MOTOHASHI TUTOMU [JP], et al
- [Y] US 5036913 A 19910806 - MURPHY KEVIN C [US], et al
- [Y] US 5254831 A 19931019 - SEKI MASAHIRO [JP]
- [A] EP 0396132 A1 19901107 - MTU MUENCHEN GMBH [DE]
- [A] US 5186244 A 19930216 - JOSHI SHRIKANT M [US]
- [A] GB 2065811 A 19810701 - MODINE MFG CO
- [A] US 4965431 A 19901023 - MONTELEONE JOHN [US]
- [Y] A.YOKOYAMA, T. NAGASHIMA, O. MATSUMOTO, Y. NAGURA, T. ISHIDE: "practical application of high-power yag laser welding by optical fibre transmission", WELDING INTERNATIONAL, vol. 6, no. 9, ABINGTON, CAMBRIDGE, GB, pages 740 - 745, XP000293081
- [A] PATENT ABSTRACTS OF JAPAN vol. 8, no. 154 (M - 310)<1591> 18 July 1984 (1984-07-18)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0660064 A2 19950628; EP 0660064 A3 19951129; EP 0660064 B1 19980527; DE 4343825 A1 19950629; DE 59406079 D1 19980702; ES 2116515 T3 19980716; US 5749414 A 19980512
DOCDB simple family (application)
EP 94118838 A 19941130; DE 4343825 A 19931222; DE 59406079 T 19941130; ES 94118838 T 19941130; US 76604896 A 19961216