公开(公告)号：US11352903B2

公开(公告)日：2022-06-07

申请号：US16747065

申请日：2020-01-20

申请人： United Technologies Corporation

发明人： William S. Pratt ,  Matthew E. Bintz ,  Weston Behling ,  Kevin N. McCusker ,  Erica J. Harvie

IPC分类号： F01D25/12

摘要： A rotor stack for a gas turbine engine includes a first rotor disk with a first rotor spacer arm, the first rotor spacer arm having a first flange with an outboard flange surface and an inboard flange surface, a first hole along an axis through the first flange, the first hole having a counterbore in the outboard flange surface; a second rotor disk with a web having a second hole along the axis; a third rotor disk with a third rotor spacer arm, the third rotor spacer arm having a third flange with an outboard flange surface and an inboard flange surface, a third hole along the axis through the third flange, the third hole having a counterbore in the inboard flange surface; and a bushing with a tubular body and a flange that extends therefrom, the tubular body comprising at least one axial groove along an outer diameter thereof, the bushing extends through the first hole, the second hole and partially into the counterbore in the inboard flange surface of the third hole.

公开(公告)号：US20210222580A1

公开(公告)日：2021-07-22

申请号：US16747065

申请日：2020-01-20

申请人： United Technologies Corporation

发明人： William S. Pratt ,  Matthew E. Bintz ,  Weston Behling ,  Kevin N. McCusker ,  Erica J. Harvie

IPC分类号： F01D11/12 ,  F01D25/12 ,  F02C7/12 ,  F02C7/18

摘要： A rotor stack for a gas turbine engine includes a first rotor disk with a first rotor spacer arm, the first rotor spacer arm having a first flange with an outboard flange surface and an inboard flange surface, a first hole along an axis through the first flange, the first hole having a counterbore in the outboard flange surface; a second rotor disk with a web having a second hole along the axis; a third rotor disk with a third rotor spacer arm, the third rotor spacer arm having a third flange with an outboard flange surface and an inboard flange surface, a third hole along the axis through the third flange, the third hole having a counterbore in the inboard flange surface; and a bushing with a tubular body and a flange that extends therefrom, the tubular body comprising at least one axial groove along an outer diameter thereof, the bushing extends through the first hole, the second hole and partially into the counterbore in the inboard flange surface of the third hole.