Title:
THRUST AUTOMATIC ADJUSTING DEVICE
Document Type and Number:
Japanese Patent JPH08189302
Kind Code:
A
Abstract:
PURPOSE: To realize a thrust bearing load state stable in the overall turbine driving range in a steam turbine having a dammy piston to balance or to reduce thrust force to work on a rotor.
CONSTITUTION: A dammy piston 2 to balance or to reduce thrust force to work on a turbine rotor 1 is provided. A pressure adjusting valve 6 is provided on a piping connected to a dammy piston part, opening of the pressure adjusting valve 6 is operated in accordance with either of metal temperature or a bearing load of a thrust bearing 4, and force in the axial direction working on the dammy piston part is adjusted. Consequently, it is possible to maintain a stable thrust bearing load state regardless of a driving state of a turbine.
Inventors:
SAKAKI AKIHIRO
Application Number:
JP57495A
Publication Date:
July 23, 1996
Filing Date:
January 06, 1995
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F01D3/04; F01D25/00; F01D25/16; (IPC1-7): F01D3/04; F01D25/00; F01D25/16
Attorney, Agent or Firm:
Akasaka Saka (1 person outside)