公开(公告)号：US11143048B2

公开(公告)日：2021-10-12

申请号：US16750636

申请日：2020-01-23

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Alexander MirzaMoghadam ,  Hasham Hamzamiyan Chougule ,  Abhay Naik

IPC: F01D11/02 ,  F01D11/12 ,  F16J15/447 ,  F01D5/02 ,  F01D9/02

Abstract: A labyrinth seal for a gas turbine engine is provided. The labyrinth seal includes a stator and a rotor spaced apart from the stator. The rotor includes a first tooth at a first side having a first radial height, and a second tooth between the first tooth and a second side. The second tooth has a second radial height that is less than the first radial height. The rotor includes a third tooth between the first tooth and the second side having a third radial height that is substantially the same as the first radial height. A first clearance between a first tip of the first tooth and the stator is different than a second clearance between a second tip of the second tooth and the stator, and a third clearance between a third tip of the third tooth and the stator is substantially the same as the first clearance.

公开(公告)号：US20200157960A1

公开(公告)日：2020-05-21

申请号：US16750636

申请日：2020-01-23

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Alexander MirzaMoghadam ,  Hasham Hamzamiyan Chougule ,  Abhay Naik

IPC: F01D11/02 ,  F01D9/02 ,  F01D5/02 ,  F16J15/447 ,  F01D11/12

Abstract: A labyrinth seal for a gas turbine engine is provided. The labyrinth seal includes a stator and a rotor spaced apart from the stator. The rotor includes a first tooth at a first side having a first radial height, and a second tooth between the first tooth and a second side. The second tooth has a second radial height that is less than the first radial height. The rotor includes a third tooth between the first tooth and the second side having a third radial height that is substantially the same as the first radial height. A first clearance between a first tip of the first tooth and the stator is different than a second clearance between a second tip of the second tooth and the stator, and a third clearance between a third tip of the third tooth and the stator is substantially the same as the first clearance.