公开(公告)号：US20170167510A1

公开(公告)日：2017-06-15

申请号：US14964722

申请日：2015-12-10

申请人： General Electric Company

发明人： Casey Lauren Berschback ,  Trevor Howard Wood ,  Wendy Wenling Lin ,  Lara Liou

IPC分类号： F04D29/38 ,  F04D29/54 ,  F04D29/32 ,  F02C3/04 ,  F04D29/02

CPC分类号： F04D29/388 ,  F01D5/141 ,  F01D9/04 ,  F01D9/041 ,  F02C3/04 ,  F04D29/023 ,  F04D29/325 ,  F04D29/542 ,  F05D2220/32 ,  F05D2220/36 ,  F05D2230/23 ,  F05D2240/35 ,  F05D2250/18 ,  F05D2250/181 ,  F05D2250/182 ,  F05D2250/61 ,  F05D2260/95 ,  F05D2300/501 ,  Y02T50/672 ,  Y02T50/673

摘要： An airfoil of a propulsion device having a first riblet laminate with a first adhesive layer on at least a first portion of the airfoil surface and a first riblet array sheet disposed on at least a portion of the first adhesive layer. The first riblet array sheet defines a first plurality of contiguous geometric features having rigid peaks and valleys extending in a first rib direction. The first plurality of contiguous geometric features define a total width to total height ratio W:H of about 1:1 to about 2.5:1 with a maximum total height of about 0.65 mm or less. A second riblet array laminate is also disclosed in an embodiment.

公开(公告)号：US10107302B2

公开(公告)日：2018-10-23

申请号：US14964722

申请日：2015-12-10

申请人： General Electric Company

发明人： Casey Lauren Berschback ,  Trevor Howard Wood ,  Wendy Wenling Lin ,  Lara Liou

IPC分类号： F04D29/38 ,  F02C3/04 ,  F04D29/02 ,  F04D29/32 ,  F04D29/54

摘要： An airfoil of a propulsion device having a first riblet laminate with a first adhesive layer on at least a first portion of the airfoil surface and a first riblet array sheet disposed on at least a portion of the first adhesive layer. The first riblet array sheet defines a first plurality of contiguous geometric features having rigid peaks and valleys extending in a first rib direction. The first plurality of contiguous geometric features define a total width to total height ratio W:H of about 1:1 to about 2.5:1 with a maximum total height of about 0.65 mm or less. A second riblet array laminate is also disclosed in an embodiment.