Blade array for turbomachines comprising suction ports in the inner and/or outer wall and turbomachines comprising same
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United States of America Patent
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-
Aug 3, 1993
Grant Date -
N/A
app pub date -
Sep 13, 1991
filing date -
Sep 13, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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