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Machine translation
1. (WO1980000728) BLADE GRID FOR A TURBINE AND TURBINE COMPRISING SUCH A BLADE GRID
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000728    International Application No.:    PCT/FR1979/000089
Publication Date: 17.04.1980 International Filing Date: 04.10.1979
IPC:
F01D 5/14 (2006.01), F04D 29/68 (2006.01)
Applicants:
Inventors:
Priority Data:
7828459 05.10.1978 FR
Title (EN) BLADE GRID FOR A TURBINE AND TURBINE COMPRISING SUCH A BLADE GRID
(FR) GRILLE D"AUBES POUR TURBINE ET TURBINE COMPORTANT UNE TELLE GRILLE D"AUBES
Abstract: front page image
(EN)A grid of blades for a turbine comprising a cascade of blade arranged between a ceiling (12) and a floor (11) defining a series of channels (3). This grid comprises communications (13, 23) drilled into the ceiling (12) and/or the floor (11) opening into one end at the vicinity of the inner face of the blades at the neck (10) of the channel and at the other end down stream of the grid. Decrease of the inner face over-pressure only at right angles with the floor (11) and the ceiling (12) causing a decrease of secondary losses, while the distribution of the pressure remains optimum in the same part of the channel.
(FR)Grille d"aubes pour turbine comportant une suite d"aubes disposees entre un plafond (12) et un plancher (11) definissant une suite de canaux (3). Cette grille comporte des communications (13, 23) percees dans le plafond (12) et/ou le plancher (11) debouchant a une extremite au voisinage de l"intrados des aubes au niveau du col (10) du canal et a l"autre extremite en aval de la grille. Diminution de la surpression intrados uniquement au droit du plancher (11) et du plafond (12) entrainant une diminution des pertes secondaires, tandis que la repartition de la pression reste optimale dans la partie saine du canal.
Designated States:
Publication Language: French (FR)
Filing Language: French (FR)