公开(公告)号：US5340280A

公开(公告)日：1994-08-23

申请号：US154145

申请日：1993-11-17

Applicant: Jan C. Schilling

Inventor： Jan C. Schilling

IPC: F01D5/28 ,  F04D29/38 ,  F01D5/14

CPC classification number: F01D5/3007 ,  F01D5/282 ,  F04D29/38 ,  Y02T50/672

Abstract: A fan blade and/or propeller blade such as found in a gas turbine engine having a dovetail former having sections of composite unidirectional wrap material wrapped about the dovetail former from the concave to the convex side of the airfoil and filling cutout spaces between dovetail sections. Layers of non-wrapped composite material are cut and tapered and attached to the front and back sides of the dovetail sections.

Abstract translation: 一种风扇叶片和/或螺旋桨叶片，例如在燃气涡轮发动机中发现的，其具有燕尾形成器，其具有从翼型的凹面到凸面侧围绕燕尾形构件缠绕的复合单向包裹材料的部分，并填充燕尾形部分之间的切割空间。 未包覆的复合材料层被切割成锥形并且附接到燕尾形部分的前侧和后侧。