COUPLING PART STRUCTURE FOR VANE AND JET ENGINE INCLUDING THE SAME

摘要

At a linking portion between a vane proximal end portion (21) of a guide vane (20) and a mounting flange (31f), a linking support member (33) including a pair of segment pieces (34, 34) joined to the vane proximal end portion (21) from both sides in a vane thickness direction is disposed. In one end joining surface (35a) of the linking support member (33), a groove (35b) is formed, while a ridge (35c) is formed on the other end joining surface (35a). The vane proximal end portion (21) is formed in a concave-convex shape and includes a joint surface (21a) for the one end joining surface (35a) with a ridge (21b) for engaging with the groove (35b) formed in the end joining surface (35a), and a joint surface (21a) for the other end joining surface (35a) with a groove (21c) for engaging with the ridge (35c) formed in the end joining surface (35a). The vane proximal end portion (21) is held between the segment pieces (34, 34) of the linking support member with a fastening force applied to the linking support member (33) from both sides in the vane thickness direction. The invention provides high structural strength while contributing to weight reduction of a jet engine.