Invention Grant
- Patent Title: Labyrinth seal with variable tooth heights
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Application No.: US16750636Application Date: 2020-01-23
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Publication No.: US11143048B2Publication Date: 2021-10-12
- Inventor: Alexander MirzaMoghadam , Hasham Hamzamiyan Chougule , Abhay Naik
- Applicant: HONEYWELL INTERNATIONAL INC.
- Applicant Address: US NJ Morris Plains
- Assignee: HONEYWELL INTERNATIONAL INC.
- Current Assignee: HONEYWELL INTERNATIONAL INC.
- Current Assignee Address: US NJ Morris Plains
- Agency: Lorenz & Kopf, LLP
- Main IPC: F01D11/02
- 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.
Public/Granted literature
- US20200157960A1 LABYRINTH SEAL WITH VARIABLE TOOTH HEIGHTS Public/Granted day:2020-05-21
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