Global Patent Index - EP 2320188 A4

EP 2320188 A4 20140312 - GROOVED TUBE FOR HEAT EXCHANGER

Title (en)

GROOVED TUBE FOR HEAT EXCHANGER

Title (de)

RILLENROHR FÜR WÄRMETAUSCHER

Title (fr)

TUBE RAINURE POUR ECHANGEUR DE CHALEUR

Publication

EP 2320188 A4 20140312 (EN)

Application

EP 09804685 A 20090728

Priority

  • JP 2009003554 W 20090728
  • JP 2008200582 A 20080804

Abstract (en)

[origin: EP2320188A1] A heat exchanger grooved tube is made of a copper alloy having a 0.2% proof stress of greater than or equal to 40 N/mm 2 , and the relationship among the fin width b, the number N of fins (3), and the root thickness t is represented by 8 < bN/t < 20.

IPC 8 full level

F28F 1/40 (2006.01)

CPC (source: EP KR US)

B21C 1/22 (2013.01 - KR); B21D 17/00 (2013.01 - KR); F28F 1/10 (2013.01 - KR); F28F 1/40 (2013.01 - EP KR US)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

EP 2320188 A1 20110511; EP 2320188 A4 20140312; AU 2009278653 A1 20100211; AU 2009278653 B2 20130207; CN 102112839 A 20110629; CN 102112839 B 20130605; JP 2010038417 A 20100218; JP 5446163 B2 20140319; KR 20110031241 A 20110324; US 2011132589 A1 20110609; WO 2010016198 A1 20100211

DOCDB simple family (application)

EP 09804685 A 20090728; AU 2009278653 A 20090728; CN 200980130159 A 20090728; JP 2008200582 A 20080804; JP 2009003554 W 20090728; KR 20117003585 A 20090728; US 200913057304 A 20090728