Turbine vane shroud with chamfered rail pocket

摘要

A shroud rail (84) for retaining a feather seal (36) in a vane shroud of a gas turbine engine comprises a slot (90) for receiving the feather seal (36), and a chamfer rail pocket (82) for lightening the shroud rail (84). The slot (90) traverses the vane shroud and includes a slot base (92) extending from a leading edge to a trailing edge of the shroud rail (84), and a slot wall (96) extending generally perpendicularly from the slot base (92). The chamfer rail pocket (82) comprises a pocket wall (100) extending along the slot wall (96), and a chamfer wall (98) extending from the pocket wall (100) at an angle oblique to the slot base (92).