Title:
METHOD FOR MEASURING PRE-TWIST AMOUNT OF BLADE, AND METHOD FOR MANUFACTURING ROTOR
Document Type and Number:
WIPO Patent Application WO/2018/154724
Kind Code:
A1
Abstract:
Provided is a method for measuring a pre-twist amount of a blade, the method including: a spreading dimension acquiring step; a misalignment acquiring step; a correcting step; and a pre-twist amount acquiring step. In the spreading dimension acquiring step, spreading dimensions, in a circumferential direction, of shrouds (34) of two rotor blades (30) are acquired. In the misalignment acquiring step, a misalignment amount, in an axial direction, between the shrouds (34) of the two rotor blades (30), which are adjacent to each other in the circumferential direction, is measured. In the correcting step, the spreading dimensions acquired in the spreading dimension acquiring step are corrected on the basis of the misalignment amount acquired in the misalignment acquiring step. In the pre-twist amount acquiring step, a pre-twist amount of the blade (33) is acquired on the basis of the spreading dimensions corrected in the correcting step.
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Inventors:
TSURUSAKI YUZO (JP)
NAKAMURA YUKI (JP)
SASAKI YUICHI (JP)
NAKAMURA YUKI (JP)
SASAKI YUICHI (JP)
Application Number:
PCT/JP2017/007158
Publication Date:
August 30, 2018
Filing Date:
February 24, 2017
Export Citation:
Assignee:
MITSUBISHI HEAVY IND COMPRESSOR CORP (JP)
International Classes:
F01D5/22; F01D9/04; F01D25/00
Foreign References:
| JP2016084780A | 2016-05-19 | |||
| JP2001073706A | 2001-03-21 | |||
| US20170016336A1 | 2017-01-19 | |||
| US20150369050A1 | 2015-12-24 | |||
| CN105499918A | 2016-04-20 | |||
| JP2016084780A | 2016-05-19 |
Other References:
See also references of EP 3527785A4
Attorney, Agent or Firm:
MORI Ryuichirou et al. (JP)
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