F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 5/02 (2006.01) F01D 9/02 (2006.01) F01D 9/04 (2006.01)
Patent
CA 2569026
A wall configuration of an axial-flow machine which can reduce the secondary flow loss is provided. A trough (40) is formed between a blade (14) and another blade in the blade row (30) and extends in at least an axial direction of the blade row (30). The region where the trough (40) is formed is axially between a leading edge (20) and a trailing edge (21) of the blade (14). A center line of the trough has a curvature in the same direction as a camber line (22) of the blade (40). A maximum amplitude of the trough (40) is located adjacent to an axial center of the blade (14) or located axially between the axial center and the leading edge (21) of the blade (14).
L'invention concerne une forme de paroi d'une machine à flux axial capable de réduire les pertes par un flux secondaire, dans laquelle une rainure (40) se prolongeant dans la direction axiale d'une grille (30) est formée dans les régions d'une paroi (31) entre les aubes (14) de la grille (30). La région dans laquelle la rainure (40) est formée est située entre les bords d'attaque (20) et les bords de fuite (21) des aubes (14) dans la direction axiale, et la forme médiane de la rainure (40) comporte un voilement dans la même direction que celle de la ligne de cambrure (22) des aubes (40). La partie la plus profonde de la rainure (40) est située entre les parties centrales proches ou les parties centrales des aubes (40) et les bords d'attaque (21) dans la direction axiale.
Aotsuka Mizuho
Hamazaki Hiroshi
Takahashi Akira
Tanimitsu Haruyuki
Ishikawajima-Harima Heavy Industries Co. Ltd.
Marks & Clerk
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