Title:
STEAM TURBINE, TURBINE NOZZLE DIAPHRAGM, NOZZLE BLADE USED FOR SAME AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
Japanese Patent JP2007023895
Kind Code:
A
Abstract:
To provide a hollow nozzle blade having accurate blade surface shape by manufacturing the nozzle blade having a hollow chamber therein by machining.
The nozzle blade includes a blade body 22 manufactured by forging and having a recess part 23 formed on an outer surface and a plate material installed on the blade body to cover the recess part 23 of the blade body. The hollow chamber 25 is formed by the recess part 23 covered by the plate material 24.
Inventors:
MAENO ATSUSHI
Application Number:
JP2005207326A
Publication Date:
February 01, 2007
Filing Date:
July 15, 2005
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
F01D9/02; F01D9/04; F01D25/00; F01D25/32
Attorney, Agent or Firm:
Kenji Yoshitake
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma
Hideyuki Mori
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma
Hideyuki Mori