| 摘要 |
PROBLEM TO BE SOLVED: To provide a platform for a turbofan gas turbine engine which will not limit the rotation capacity of an adjoining fan blade, when a foreign matter collides with one of the fan blades. SOLUTION: A platform 34 comprises a structure body part 40, and a passage surface part formed integrally therewith. The structure body part 40 has a profile matching with that of an adjoining fan blade 18. The flow passage surface part defines a pair of wings 60, laterally protruding and running over the structure body part. The wing 60 has crushing property and when the adjoining fan blade 18 is rotated in response to suction troubles, the wing is crashed. The platform 34 is manufactured out of a composite material by using a resin transfer molding method. |
