公开(公告)号：US20190112940A1

公开(公告)日：2019-04-18

申请号：US15786367

申请日：2017-10-17

申请人： UNITED TECHNOLOGIES CORPORATION

发明人： William S. Pratt ,  Anand Nagaraj ,  Diane C. Kjelby

IPC分类号： F01D17/16 ,  F01D9/04

CPC分类号： F01D17/162 ,  F01D9/041 ,  F01D17/165 ,  F02C9/20 ,  F05D2220/32 ,  F05D2230/60 ,  F05D2240/12 ,  F05D2260/79

摘要： A vane arm may comprise a first end having a first surface and a second surface opposite the first surface. A vane stem aperture may be formed through the first end of the vane arm. The first surface may define a first perimeter of the vane stem aperture. The second surface may defines a second perimeter of the vane stem aperture. The second perimeter may comprise a circular or elliptical shape. A first wedge face and second wedge face may define a portion of the vane stem aperture.

公开(公告)号：US10590795B2

公开(公告)日：2020-03-17

申请号：US15786367

申请日：2017-10-17

申请人： UNITED TECHNOLOGIES CORPORATION

发明人： William S. Pratt ,  Anand Nagaraj ,  Diane C. Kjelby

IPC分类号： F01D17/16 ,  F01D9/04 ,  F02C9/20

摘要： A vane arm may comprise a first end having a first surface and a second surface opposite the first surface. A vane stem aperture may be formed through the first end of the vane arm. The first surface may define a first perimeter of the vane stem aperture. The second surface may defines a second perimeter of the vane stem aperture. The second perimeter may comprise a circular or elliptical shape. A first wedge face and second wedge face may define a portion of the vane stem aperture.

公开(公告)号：US20190264574A1

公开(公告)日：2019-08-29

申请号：US15908268

申请日：2018-02-28

申请人： United Technologies Corporation

发明人： Diane C. Kjelby ,  William S. Pratt ,  Adam Hart ,  Steven D. Roberts

IPC分类号： F01D17/16 ,  F02C3/06 ,  F04D29/56

摘要： A vane arm assembly for a gas turbine engine. The vane arm assembly includes a vane arm defining an aperture at an end thereof with an aperture wall. The vane arm assembly also includes a vane stem extending through the aperture of the vane arm. The vane arm assembly further includes a mechanical fastener retaining a position of the vane arm in the longitudinal direction of the vane stem. The vane arm assembly yet further includes an impedance ring disposed within the aperture of the vane arm and within an impedance ring groove defined by the vane stem to provide redundant position retention of the vane arm in the longitudinal direction of the vane stem.