Title:
STEAM COOLING GAS TURBINE AND ITS BEARING
Document Type and Number:
Japanese Patent JP2001107747
Kind Code:
A
Abstract:
To protect a bearing from the thermal deformation of a shaft part due to cooling steam.
In a steam cooling gas turbine, a steam passage 16 for penetrating the shaft part 14 of the rotor tail end part 10 in an axial direction is provided, and a bearing 12 for rotatably supporting the shaft part 14 measures a gap G between the shaft part 14 and the bearing 12, to control lubricating oil flow rate supplied to the gap G so as to make the gap G have a given value, thereby preventing the damage to the bearing 12 based on the thermal deformation of the shaft part due to cooling steam flowing in the passage 16.
Inventors:
OYA TAKEAKI
TANAKA KATSUNORI
HIROKAWA KAZUHARU
KAGAWA NAOYA
TANAKA KATSUNORI
HIROKAWA KAZUHARU
KAGAWA NAOYA
Application Number:
JP28922099A
Publication Date:
April 17, 2001
Filing Date:
October 12, 1999
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F01D25/18; F02C7/00; F02C7/06; F16C17/03; F16C17/22; F16C33/10; (IPC1-7): F02C7/06; F01D25/18; F02C7/00; F16C17/03; F16C33/10
Attorney, Agent or Firm:
Takashi Ishida (3 others)
Previous Patent: INFLOW PREVENTIVE DEVICE FOR WATERDROP INTO GAS TURBINE SUCTION PORT
Next Patent: CONTROL DEVICE FOR AIRCRAFT GAS TURBINE ENGINE
Next Patent: CONTROL DEVICE FOR AIRCRAFT GAS TURBINE ENGINE