Global Patent Index - EP 0805331 A3

EP 0805331 A3 19980708 - Multi-tube heat exchanger

Title (en)

Multi-tube heat exchanger

Title (de)

Multiröhren-Wärmetauscher

Title (fr)

Echangeur de chaleur multitubulaire

Publication

EP 0805331 A3 19980708 (EN)

Application

EP 97302896 A 19970428

Priority

JP 13260096 A 19960430

Abstract (en)

[origin: EP0805331A2] A multi-tube heat exchanger (100) includes a pair of tanks (1, 2) and a plurality of heat transfer tubes (3) fluidly interconnected between the tanks (1, 2), wherein each heat transfer tube (3) has a radially expanded portion (6) at least at one end portion engaging a tank wall (4 or 5) of a tank (1 or 2). Since a diameter contracted portion is not formed at a tube end portion, increase of pressure loss at a connecting portion of the tube end portion and a tank wall (4 or 5) can be prevented, thereby suppressing the pressure loss small as the whole of the heat exchanger (100) and ensuring a high performance of the heat exchanger (100). <IMAGE>

IPC 1-7

F28F 9/18; F28D 1/053

IPC 8 full level

F28D 1/053 (2006.01); F28F 9/18 (2006.01); F28F 9/26 (2006.01)

CPC (source: EP)

F28D 1/05341 (2013.01); F28F 9/182 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

EP 0805331 A2 19971105; EP 0805331 A3 19980708; JP H09296994 A 19971118

DOCDB simple family (application)

EP 97302896 A 19970428; JP 13260096 A 19960430