Cooled turbine-nozzle vane

Details Cooled turbine-nozzle vane Cooled turbine-nozzle vane

1998-11-25

2000-08-29

Look, Edward K.

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

415110, 415116, 416 97R, 416 96A, F01D 514

Patent

active

061098671

ABSTRACT:
A turbine-nozzle vane fitted with a cooling system including a hollow airfoil (45) inserted between an outer deck and an inner deck (46). Disposed inside the airfoil (45) is a liner (60) which is fitted with a multi-perforated skirt to impact-cool the airfoil wall. The liner (60) has an inner wall (62) comprising a female frustum of a cone (66). A male frustum of a cone (64) is rigidly affixed to the inner deck (46) and is nested in the female frustum (66). These frusta provide communication between the inside of the liner (60) and the inside of the inner deck (46). Cooling air (70) is introduced into the liner (60) through the outer deck. A portion (71) of this air impact-cools the airfoil wall. Another portion (72) enters the inner deck (46) and passes through an orifice (67) to cool the turbine disks (49, 50) upstream and downstream of the nozzle.

REFERENCES:
patent: 3628880 (1971-12-01), Smuland et al.
patent: 3767322 (1973-10-01), Durgin et al.
patent: 3781129 (1973-12-01), Aspinwall
patent: 3994622 (1976-11-01), Schultz et al.
patent: 4288201 (1981-09-01), Wilson
patent: 4962640 (1990-10-01), Tobery
patent: 5358374 (1994-10-01), Correia et al.

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