Nozzle braze backside cooling
AssigneeGeneral Electric Company
InventorsJohn Peter Heyward, Robert Ingram Ackerman, Richard Hartley Pugh, Steven Curtiss Warfield, Kenneth Morand Lieland
Life of this patent
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Abstract
A nozzle vane includes a row of trailing edge apertures and cooperating inboard slots joined in flow communication with a mid-chord cavity. An outboard slot is spaced outwardly from a respective last one of the inboard slots, and outboard of a respective last one of the trailing edge apertures. The outboard slot extends behind a braze joint between the vane and a supporting band and is effective for backside cooling thereof.
Claims20
A turbine nozzle comprising:
- outer and inner bands having respective pairs of vane seats extending therethrough;
- a pair of vanes having respective roots disposed in said vane seats, and fixedly joined therein by corresponding braze joints, and including opposite sidewalls joined together at opposite leading and trailing edges;
- and
- each of said vanes further includes a last trailing edge aperture spaced inboard from a corresponding braze joint and disposed in flow communication with an outboard slot bridging said sidewalls and extending behind said braze joint for channeling cooling air from a mid-chord cavity of said vane to said last aperture for backside cooling said braze joint therealong.
A nozzle vane including a row of trailing edge apertures and cooperating inboard slots joined in flow communication with a mid-chord cavity, and a pair of outboard slots spaced outwardly from respective last ones of said inboard slots at opposite ends of said vane and outboard of respective last ones of said trailing edge apertures.
A nozzle vane including a row of trailing edge apertures joined in flow communication with a mid-chord cavity by corresponding inboard channels bridging opposite sidewalls of said vane for discharging cooling air at corresponding flowrates through said apertures, and a pair of outboard channels bridging said vane sidewalls and spaced outwardly from respective last ones of said inboard channels at opposite ends of said vane and outboard of respective last ones of said trailing edge apertures, and said outboard channels terminating in common with respective ones of said last inboard channels.
Dependencies are inferred from the claim text.