EP 0197812 B1 19890111 - HEAT EXCHANGER HAVING HELICALLY COILED TUBES PROVIDED WITH MEANS FOR TUBE SUPPORTING
Title (en)
HEAT EXCHANGER HAVING HELICALLY COILED TUBES PROVIDED WITH MEANS FOR TUBE SUPPORTING
Publication
Application
Priority
FR 8503756 A 19850314
Abstract (en)
[origin: EP0197812A1] 1. Heat exchanger having tubes (18), support plates (30) with perforations (32, 132) traversed by the tubes and frustum-shaped securing bushes (24, 124), at least one of these bushes being placed around each tube in a perforation (32, 132) formed in a corresponding support plate (30) and crimped on said support plate, characterized in that the tubes (18) are helically wound in successive layers about a common axis (x, x'), each layer of tubes (18) traversing a row of perforations (32, 132) formed in a different support plate (30), the said perforations (32, 132) being radially open (31) with respect to said axis (x, x') over a width slightly exceeding the external diameter of the tubes (18), connecting parts (38, 138, 238) being placed between the support plates of two layers of successive tubes, said parts allowing a relative displacement between the plates in a radial direction (y, y') with respect to said axis (x, x') whilst still providing a relative securing effect between the plates in a transverse direction (z, z') orthogonal to said axis (x, x') and to said radial direction (y, y').
IPC 1-7
IPC 8 full level
F28D 7/02 (2006.01); F28D 7/16 (2006.01); F28F 9/00 (2006.01); F28F 9/013 (2006.01)
CPC (source: EP)
F28D 7/028 (2013.01); F28F 9/0132 (2013.01); F28D 2021/0054 (2013.01)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0197812 A1 19861015; EP 0197812 B1 19890111; DE 3661777 D1 19890216; FR 2578967 A1 19860919; FR 2578967 B1 19890707; JP S61213496 A 19860922
DOCDB simple family (application)
EP 86400497 A 19860310; DE 3661777 T 19860310; FR 8503756 A 19850314; JP 5514586 A 19860314