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Patent Searching and Data


Title:
AXIAL FLOW ROTARY MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/155636
Kind Code:
A1
Abstract:
In an axial flow rotary machine according to the present invention, a moving blade (4) comprises a moving blade shroud (41) and a shroud-side fin (44), and a small gap is formed between said shroud-side fin (44) and a casing (2). The casing (2) comprises a casing-side fin (42), and a small gap is formed between said casing-side fin (42) and the moving blade shroud (41). The base end sections of each of the fins (42, 44) have an arcuate surface (42a, 44a) in which surfaces facing the upstream side and the downstream side of the flow of a main flow (MF) are recessed toward central lines (CL1, CL2). The central lines (CL1, CL2) incline toward the upstream side as the proximity to tip sections increases in each of the fins (42, 44).

Inventors:
KONISHI EIJI (JP)
KUWAMURA YOSHIHIRO (JP)
MATSUMOTO KAZUYUKI (JP)
FUKAO SHINJI (JP)
SUGISHITA HIDEAKI (JP)
Application Number:
PCT/JP2018/006731
Publication Date:
August 30, 2018
Filing Date:
February 23, 2018
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F01D11/08; F01D5/20; F01D9/04; F01D25/00; F02C7/28
Foreign References:
JP2013019537A2013-01-31
JP2011237033A2011-11-24
JPH02245581A1990-10-01
JPS6397804A1988-04-28
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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