EP 1840495 A4 20080528 - DOUBLE PIPE HEAT EXCHANGER AND METHOD OF MANUFACTURING THE SAME
Title (en)
DOUBLE PIPE HEAT EXCHANGER AND METHOD OF MANUFACTURING THE SAME
Title (de)
DOPPELROHRWÄRMETAUSCHER UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
ECHANGEUR THERMIQUE A TUYAU DOUBLE ET SON PROCEDE DE FABRICATION
Publication
Application
Priority
JP 2005001179 W 20050121
Abstract (en)
[origin: EP1840495A1] A double pipe heat exchanger that can be produced easily and can be used as a part of piping by bending the whole body, wherein an inner pipe 1 is configured so that: a plurality of balloon-shaped bulges 3 communicating with one another and extending from the center toward the radial directions in a cross section orthogonal to the axis line thereof may be formed; the outer circumference of the bulges 3 may be bent into the shape of waves in an axial cross section; and the top portions 9 of the waves may touch the inner surface of an outer pipe 2. Then in the state, the whole body including the inner pipe 1 and the outer pipe 2 is bent by applying external force.
IPC 8 full level
CPC (source: EP US)
F28D 7/106 (2013.01 - EP US); F28F 1/06 (2013.01 - EP US); F28F 1/08 (2013.01 - EP US); Y10T 29/49361 (2015.01 - EP US)
Citation (search report)
- [Y] JP 2002013882 A 20020118 - MATSUSHITA REFRIGERATION
- [Y] DE 1129516 B 19620517 - ANDRE HUET
- [A] US 4437513 A 19840320 - CASTIGLIONI JOSEPH [US], et al
- [A] US 4194560 A 19800325 - MATSUZAKI YOSHIAKI [JP]
- See references of WO 2006077657A1
Designated contracting state (EPC)
CZ DE IT
DOCDB simple family (publication)
EP 1840495 A1 20071003; EP 1840495 A4 20080528; EP 1840495 B1 20100303; CN 100510599 C 20090708; CN 101103243 A 20080109; DE 602005019787 D1 20100415; US 2008141665 A1 20080619; WO 2006077657 A1 20060727
DOCDB simple family (application)
EP 05704232 A 20050121; CN 200580046959 A 20050121; DE 602005019787 T 20050121; JP 2005001179 W 20050121; US 79519305 A 20050121