Air cooled gas turbine aerofoil

Details Air cooled gas turbine aerofoil Air cooled gas turbine aerofoil

1985-11-27

1996-10-08

Carone, Michael J.

Rotary kinetic fluid motors or pumps

Including additional means causing or controlling fluid flow...

415115, 416 96R, 416 95, F01D 518

Patent

active

055624090

ABSTRACT:
A hollow turbine blade has cooling air feed passages in the wall defining the central cavity. The wall surfaces of the feed passages slope away from the central cavity in a diverging manner, so as to reduce the step difference in metal thickness between the passages relative to the thickness of metal dividing each passage and the central cavity. The temperature gradient from the blade external surface and the wall surface of the central cavity is thus also reduced, avoiding thermal stresses.

REFERENCES:
patent: 2991973 (1961-07-01), Cole
patent: 4529357 (1985-07-01), Holland
patent: 4650399 (1987-03-01), Craig et al.
patent: 5151012 (1992-09-01), Hough
patent: 5201634 (1993-04-01), Hough

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