Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Cantilever blade
Patent
1995-11-17
1997-07-01
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Cantilever blade
415181, 416242, F01D 514
Patent
active
056429851
ABSTRACT:
A swept turbomachinery blade for use in a cascade of such blades is disclosed. The blade (12) has an airfoil (22) uniquely swept so that an endwall shock (64) of limited radial extent and a passage shock (66) are coincident and a working medium (48) flowing through interblade passages (50) is subjected to a single coincident shock rather than the individual shocks. In one embodiment of the invention the forwardmost extremity of the airfoil defines an inner transition point (40) located at an inner transition radius r.sub.t -inner. The sweep angle of the airfoil is nondecreasing with increasing radius from the inner transition radius to an outer transition radius r.sub.t-outer, radially inward of the airfoil tip (26), and is nonincreasing with increasing radius between the outer transition radius and the airfoil tip.
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Biederman Bruce P.
Orosa John A.
Spear David A.
Baran Kenneth C.
Look Edward K.
Sgantzos Mark
United Technologies Corporation
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