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AIRFOIL WITH CMC-PLY CUTOUTS FOR COOLING CHANNELS, GAS TURBINE ENGINE AND METHOD OF FABRICATING AN AIRFOIL
An airfoil (60) includes an airfoil wall (61) that circumscribes a main cavity (70) and defines radially inner and outer ends (62e, 62f), leading and trailing edges (62a, 62b), and pressure and suction sides (62c, 62d). The airfoil wall (61) includes a lay-up of ceramic matrix composite (CMC) plies (72) that span the radially inner and outer ends (62e, 62f) and have an inner-most CMC ply (72a) bounding at least a portion of the main cavity (70), an exterior skin CMC ply (72b), and intermediate CMC plies (72c) between the inner-most CMC ply (72a) and the exterior skin CMC ply (72b). At least one of the intermediate CMC plies (72c) has cutout voids (74) that define cooling channels in the airfoil wall (61). The cooling channels are bound on lateral sides (74a, 74b) by the at least one of the intermediate CMC plies (72c), bound on an inner side (74c) by a first adjacent one of the CMC plies (72), and bound on an outer side (74d) by a second, different adjacent one of the CMC plies (72).
AIRFOIL WITH CMC-PLY CUTOUTS FOR COOLING CHANNELS, GAS TURBINE ENGINE AND METHOD OF FABRICATING AN AIRFOIL
An airfoil (60) includes an airfoil wall (61) that circumscribes a main cavity (70) and defines radially inner and outer ends (62e, 62f), leading and trailing edges (62a, 62b), and pressure and suction sides (62c, 62d). The airfoil wall (61) includes a lay-up of ceramic matrix composite (CMC) plies (72) that span the radially inner and outer ends (62e, 62f) and have an inner-most CMC ply (72a) bounding at least a portion of the main cavity (70), an exterior skin CMC ply (72b), and intermediate CMC plies (72c) between the inner-most CMC ply (72a) and the exterior skin CMC ply (72b). At least one of the intermediate CMC plies (72c) has cutout voids (74) that define cooling channels in the airfoil wall (61). The cooling channels are bound on lateral sides (74a, 74b) by the at least one of the intermediate CMC plies (72c), bound on an inner side (74c) by a first adjacent one of the CMC plies (72), and bound on an outer side (74d) by a second, different adjacent one of the CMC plies (72).
AIRFOIL WITH CMC-PLY CUTOUTS FOR COOLING CHANNELS, GAS TURBINE ENGINE AND METHOD OF FABRICATING AN AIRFOIL
SCHAUFEL MIT CMC-SCHICHTAUSSCHNITTEN FÜR KÜHLKANÄLE, GASTURBINENTRIEBWERK UND VERFAHREN ZUR HERSTELLUNG EINER SCHAUFEL
AUBE AVEC DÉCOUPES DE PLI DE CMC POUR CANAUX DE REFROIDISSEMENT, MOTEUR À TURBINE À GAZ ET PROCÉDÉ DE FABRICATION D'UNE AUBE
BANHOS JONAS (author) / KIM RUSSELL (author) / ROACH JAMES T (author)
2024-11-13
Patent
Electronic Resource
English
| European Patent Office | 2024
METHOD FOR MAKING GAS TURBINE ENGINE CERAMIC MATRIX COMPOSITE AIRFOIL
| European Patent Office | 2019