Blade array for turbomachines comprising suction ports in the in

Details Blade array for turbomachines comprising suction ports in the in Blade array for turbomachines comprising suction ports in the in

1991-09-13

1993-08-03

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid bypass

415115, 415116, 4151735, 4151736, 415914, 416 92, F01D 506, F01D 508, F01D 904

Patent

active

052323382

ABSTRACT:
A blade array for turbomachines comprises blades disposed between an inner wall and an outer wall. The inner wall and/or the outer wall is provided with a suction port near at least some blades. This port has a first end situated along the upper surface in a region of the blade extending from the point of maximum curvature to the neck of the passage between said blade and the adjacent blade. The port enabling the efficiency to be increased is oriented along an isobar line. Its length is such that the second end is spaced from the upper surface of the blade by a distance between one quarter and one half the width of the neck of the inter-blade passage.

REFERENCES:
patent: 3746462 (1973-07-01), Fukuda
patent: 3846038 (1974-11-01), Carriere et al.
patent: 4146352 (1979-03-01), Yasugahira et al.
patent: 4362465 (1982-07-01), Riollet et al.

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