Global Patent Index - EP 1733123 A1

EP 1733123 A1 20061220 - 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

EP 1733123 A1 20061220 (DE)

Application

EP 05715934 A 20050310

Priority

  • EP 2005002558 W 20050310
  • EP 04006394 A 20040317
  • EP 05715934 A 20050310

Abstract (en)

[origin: EP1577494A1] 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.

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)

See references of WO 2005093218A1

Citation (examination)

DE 10052176 A1 20010621 - TOSHIBA KAWASAKI KK [JP]

Designated contracting state (EPC)

CH DE ES GB IT LI PL

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