EP 1577494 A1 20050921 - Welded steam turbine shaft and its method of manufacture
Title (en)
Welded steam turbine shaft and its method of manufacture
Title (de)
Geschweisste Turbinenwelle und Verfahren zur deren Herstellung
Title (fr)
Arbre soudé de turbine à vapeur et procédé de fabrication
Publication
Application
Priority
EP 04006394 A 20040317
Abstract (en)
The welded turbine shaft (3) which is orientated in a longitudinal direction (4) has a center section (20) and two outer sections (21,22) fastened on the center section in the longitudinal direction. The center section is manufactured from a material which is more resistant to high heat than the two outer sections. The two outer sections are each connected to the center section through a weld (24,25). Independent claims are also included for the following: (A) a method for the manufacture of a turbine shaft in which the center section of the shaft consists of a material with resistance to high heat; and (B) a steam turbine equipped with the shaft as specified in the invention.
Abstract (de)
Die Erfindung betrifft eine in einer Längsrichtung (4) ausgerichteten Turbinenwelle (3) mit einem mittleren Bereich (20) und zwei in der Längsrichtung (4) am mittleren Bereich (20) befestigten äußeren Bereichen (21, 22), wobei der mittlere Bereich (20) aus einem hochwarmfesteren Material als die beiden äußeren Bereiche (21, 22) hergestellt ist. <IMAGE>
IPC 1-7
IPC 8 full level
F01D 5/02 (2006.01); F01D 5/06 (2006.01); F01D 5/28 (2006.01)
CPC (source: EP US)
F01D 5/026 (2013.01 - EP US); F01D 5/063 (2013.01 - EP US); F01D 5/28 (2013.01 - EP US); F05C 2201/0466 (2013.01 - EP US); F05D 2220/72 (2013.01 - EP US); F05D 2300/132 (2013.01 - EP US); F05D 2300/171 (2013.01 - EP US); Y10T 29/4932 (2015.01 - EP US)
Citation (search report)
- [XY] EP 0964135 A2 19991215 - MITSUBISHI HEAVY IND LTD [JP]
- [YA] DE 10114612 A1 20020926 - ALSTOM SWITZERLAND LTD [CH]
- [A] US 4962586 A 19901016 - CLARK ROBERT E [US], et al
- [X] MAGOSHI,R; NAKANO,T;KONISHI,T: "IJPGC2000-15007; Proceedings of 2000 International Joint Power Generation Conference Miami Beech, Florida, July 23-26, 2000; Development and Operating Experience of Welded Rotors for High-temperature Steam Turbines", 26 July 2000, XP002298811
- [A] PATENT ABSTRACTS OF JAPAN vol. 0070, no. 24 (M - 189) 29 January 1983 (1983-01-29)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1577494 A1 20050921; CN 100420825 C 20080924; CN 1954133 A 20070425; EP 1733123 A1 20061220; US 2008159849 A1 20080703; US 7771166 B2 20100810; WO 2005093218 A1 20051006
DOCDB simple family (application)
EP 04006394 A 20040317; CN 200580015757 A 20050310; EP 05715934 A 20050310; EP 2005002558 W 20050310; US 59304305 A 20050310