EP 1271087 A1 20030102 - HEATING TUBE WITH INNER SURFACE GROOVES
Title (en)
HEATING TUBE WITH INNER SURFACE GROOVES
Title (de)
HEIZROHR MIT GERILLTER INNERER OBERFLÄCHE
Title (fr)
TUBE CHAUFFANT MUNI DE RAINURES DE LA SURFACE INTERIEURE
Publication
Application
Priority
- JP 0103019 W 20010406
- JP 2000105836 A 20000407
Abstract (en)
Disclosed is an inner grooved heat transfer tube (10) having a line groove (11) in which is formed a deformed portion (13). In order to upgrade the performance of heat transmission by securing an action of scattering liquid refrigerant by the deformed portion (13) when used in a condenser, and in order to reduce the loss of pressure when used in an evaporator, conditions (e.g., the ratio of a main groove (12) to the deformed portion (13) of the line groove (11) and the angle and length of the main groove (12) and the deformed portion (13)) are specified so as to fall within predetermined ranges. <IMAGE>
IPC 1-7
IPC 8 full level
F28F 1/40 (2006.01)
CPC (source: EP)
F28F 1/40 (2013.01); F28D 2021/007 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1271087 A1 20030102; EP 1271087 A4 20080730; AU 2001244740 B2 20050217; AU 4474001 A 20011023; CN 1253686 C 20060426; CN 1436293 A 20030813; JP 2001289586 A 20011019; WO 0177601 A1 20011018
DOCDB simple family (application)
EP 01917860 A 20010406; AU 2001244740 A 20010406; AU 4474001 A 20010406; CN 01810932 A 20010406; JP 0103019 W 20010406; JP 2000105836 A 20000407