Title:
STEAM TURBINE ROTOR AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2005344527
Kind Code:
A
Abstract:
To provide a steam turbine rotor providing a high strength structure and a structure having a easy joint of a high middle pressure turbine rotor and a low pressure turbine rotor, and preventing welding crack of a welding part when the low pressure turbine rotor is connected to the high middle pressure turbine rotor at the welding part.
In this steam turbine rotor, axial positions of inner space cavity part deepest parts P1, P2 of inner surface cavity parts 12a, 12b formed inside of a high pressure turbine rotor HIPR and a middle pressure turbine rotor LPR are established at positions separate from a center CL of the welding part 10 by 2M times or more of a beveling welding width M.
Inventors:
INUKAI TAKAO
YAMADA MASAYUKI
KIKUCHI MASATAKA
KANEKO JOJI
ASAI SATORU
YAMADA MASAYUKI
KIKUCHI MASATAKA
KANEKO JOJI
ASAI SATORU
Application Number:
JP2004162477A
Publication Date:
December 15, 2005
Filing Date:
May 31, 2004
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
F01D5/06; B23K9/00; B23K9/167; B23K9/23; B23K31/00; B23K103/04; (IPC1-7): F01D5/06; B23K9/00; B23K9/167; B23K9/23; B23K31/00
Attorney, Agent or Firm:
Hisashi Hatano
Shunguchi Sekiguchi
Akio Saruwatari
Junichi Furukawa
Shunguchi Sekiguchi
Akio Saruwatari
Junichi Furukawa
Previous Patent: AIR INTAKE STRUCTURE FOR OUTBOARD MOTOR
Next Patent: COMBINED CYCLE POWER GENERATING PLANT AND METHOD FOR STARTING THE SAME
Next Patent: COMBINED CYCLE POWER GENERATING PLANT AND METHOD FOR STARTING THE SAME