Rotor airfoils to control tip leakage flows

Details Rotor airfoils to control tip leakage flows Rotor airfoils to control tip leakage flows

1994-11-04

1996-06-11

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Cantilever blade

416223A, 416235, F01D 520

Patent

active

055250386

ABSTRACT:
A rotor blade for a gas turbine engine includes a bowed surface on a tip region of the suction side thereof. The curvature of the bowed surface progressively increases toward the tip of the blade. The bowed surface results in a reduction of tip leakage through a tip clearance from the pressure side to the suction side of the blade and reduces mixing loss due to tip leakage.

REFERENCES:
patent: 2714499 (1955-08-01), Warner
patent: 4682935 (1987-07-01), Martin
patent: 5088892 (1992-02-01), Weingold et al.
patent: 5167489 (1992-12-01), Wadia et al.

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