Title:
VARIABLE STATOR BLADE AND COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2023/218723
Kind Code:
A1
Abstract:
This variable stator blade is provided with a stator blade body extending in a blade height direction, and a blade rotational shaft rotatable so as to change the angle of the stator blade body with respect to a flow direction of a working fluid. The blade rotational shaft has a rotational shaft body extending about a rotational axis extending in the blade height direction, and a large-diameter part having an outer diameter larger than the outer diameter of the rotational shaft body when seen from the blade height direction. The stator blade body has a positive pressure surface and a negative pressure surface each extending in the blade height direction and connecting a leading edge and a trailing edge. The large-diameter part is formed in such a size as to overlap at least one of the leading edge and the trailing edge when seen from the blade height direction.
Inventors:
IWATANI JUNJI (JP)
Application Number:
PCT/JP2023/005981
Publication Date:
November 16, 2023
Filing Date:
February 20, 2023
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F04D29/56; F01D9/04; F01D17/16
Foreign References:
| US20200240435A1 | 2020-07-30 | |||
| US20100124487A1 | 2010-05-20 | |||
| US20080131268A1 | 2008-06-05 | |||
| JP2017129133A | 2017-07-27 | |||
| US20100232936A1 | 2010-09-16 | |||
| JP2000283096A | 2000-10-10 | |||
| JP2013133742A | 2013-07-08 | |||
| JPS3617775B1 | ||||
| US4231703A | 1980-11-04 | |||
| JP2005291212A | 2005-10-20 | |||
| JP2002130189A | 2002-05-09 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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