Title:
METHOD OF CORRECTING BALANCE OF GAS TURBINE
Document Type and Number:
WIPO Patent Application WO/2006/077642
Kind Code:
A1
Abstract:
A method of correcting the balance of a gas turbine formed so that a balance between the generator side shaft end of a rotor and the shaft end of the gas turbine can be corrected within the range of service rotational speed. In the method, after the rotor is assembled in a casing, the balance is corrected while the rotor is rotated up to a high service rotational speed to remove its residual unbalance at the high rotational speed at which an unbalance due to the elastic deformation of the rotor occurs so as to reduce a vibration due to the unbalance. Accordingly, when the gas turbine is assembled, the residual unbalance resulting from the assembly of the gas turbine, a compressor, and a generator formed on a same rotating axis can be reduced. As a result, the gas turbine which does not increase a vibration at a critical speed can be provided.
Inventors:
HAYASAKA YASUSHI (JP)
YAMAGUCHI KAZUYUKI (JP)
YAMAGUCHI KAZUYUKI (JP)
Application Number:
PCT/JP2005/000738
Publication Date:
July 27, 2006
Filing Date:
January 21, 2005
Export Citation:
Assignee:
HITACHI LTD (JP)
HAYASAKA YASUSHI (JP)
YAMAGUCHI KAZUYUKI (JP)
HAYASAKA YASUSHI (JP)
YAMAGUCHI KAZUYUKI (JP)
International Classes:
F02C7/00; F01D5/10; F01D25/00; F02C3/05; F16F15/32
Foreign References:
| EP1338773A2 | 2003-08-27 | |||
| JP2001342849A | 2001-12-14 | |||
| JPS6082600U | 1985-06-07 | |||
| US5545010A | 1996-08-13 | |||
| JPH01300023A | 1989-12-04 | |||
| JPS49113005A | 1974-10-28 | |||
| JPS52131006A | 1977-11-02 | |||
| JPH01244102A | 1989-09-28 | |||
| JPH01227802A | 1989-09-12 | |||
| JPH0742793A | 1995-02-10 |
Attorney, Agent or Firm:
Ogawa, Katsuo (3-3 Shinkawa 1-chome, Chuo-k, Tokyo 33, JP)
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