公开(公告)号：US20160348689A1

公开(公告)日：2016-12-01

申请号：US15075705

申请日：2016-03-21

Applicant: United Technologies Corporation

Inventor： Lee Drozdenko ,  William R. Graves ,  Michael Ll ,  Maria C. Kirejczyk

IPC: F04D29/34 ,  F02K3/06 ,  F02C3/04 ,  F04D29/38

CPC classification number: F04D29/34 ,  F01D5/30 ,  F01D5/3007 ,  F01D21/045 ,  F02C3/04 ,  F02K3/06 ,  F04D29/322 ,  F04D29/38 ,  F05D2220/323 ,  F05D2220/36 ,  F05D2230/10 ,  F05D2240/35 ,  F05D2250/241 ,  F05D2250/291 ,  F05D2250/294 ,  F05D2260/941

Abstract: A fan blade is provided and comprises a leading edge, an attachment root extending aft of the leading edge, and a trench formed in a surface of the attachment root. An attachment root is also provided. The attachment root comprises a leading edge, a dovetail extending aft of the leading edge, and a trench formed in a surface of the dovetail. A gas turbine engine is also provided. The gas turbine engine comprises a compressor section configured to rotate about an axis, a combustor aft of the compressor section, and a turbine section aft of the compressor section and configured to rotate about the axis. A fan may be disposed forward of the turbine section and include a blade. The blade may have a trench formed in an attachment root.

Abstract translation: 提供了一种风扇叶片，其包括前缘，在前缘的后方延伸的附着根和形成在附接根部的表面中的沟槽。 还提供附件根。 附接根部包括前缘，在前缘的后方延伸的燕尾榫和形成在燕尾榫的表面中的沟槽。 还提供燃气涡轮发动机。 燃气涡轮发动机包括被构造成围绕轴线旋转的压缩机部分，压缩机部分的燃烧器后部和压缩机部分的涡轮部分并被构造成围绕轴线旋转。 风扇可以设置在涡轮部分的前方并且包括叶片。 叶片可以具有形成在附接根部中的沟槽。