Title:
FLOW CONTROL METHOD FOR SUPPRESSING VIBRATION OF RADIAL TURBINE BLADE ON BASIS OF WALL SURFACE GROOVING TREATMENT, AND FLUID MACHINE
Document Type and Number:
WIPO Patent Application WO/2024/096080
Kind Code:
A1
Abstract:
Provided is a flow control method for suppressing vibration of a radial turbine blade on the basis of a wall surface grooving treatment. On a housing wall surface, inclined grooves disposed evenly in the circumferential direction are formed; and the dimension and number of the inclined grooves and the relative positions of the inclined grooves and a volute are adjusted to offset air pressure excitation forces generated by the inclined grooves and the volute. Due to the foregoing, blade vibration stress is reduced, operational reliability of the radial turbine is improved, and the aerodynamic performance of the turbine is maintained so as to be substantially unchanged.
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Inventors:
YANG MINGYANG (CN)
PAN LEI (CN)
SATO WATARU (JP)
MURAE SHOTA (JP)
DENG KANGYAO (CN)
PAN LEI (CN)
SATO WATARU (JP)
MURAE SHOTA (JP)
DENG KANGYAO (CN)
Application Number:
PCT/JP2023/039508
Publication Date:
May 10, 2024
Filing Date:
November 01, 2023
Export Citation:
Assignee:
UNIV SHANGHAI JIAOTONG (CN)
IHI CORP (JP)
IHI CORP (JP)
International Classes:
F01D25/06; F01D25/24
Domestic Patent References:
| WO2018222141A1 | 2018-12-06 |
Foreign References:
| JP2008163761A | 2008-07-17 | |||
| JPH08232671A | 1996-09-10 | |||
| US20060088412A1 | 2006-04-27 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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