Invention Grant
- Patent Title: Labyrinth seal for turbine dovetail
- Patent Title (中): 涡轮燕尾形迷宫密封
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Application No.: US12168932Application Date: 2008-07-08
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Publication No.: US08210821B2Publication Date: 2012-07-03
- Inventor: Brian P. Arness , Tara Easter McGovern , John D. Wardell , Omprakash Samudrala
- Applicant: Brian P. Arness , Tara Easter McGovern , John D. Wardell , Omprakash Samudrala
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Sutherland Asbill & Brennan LLP
- Main IPC: F03B3/12
- IPC: F03B3/12

Abstract:
A labyrinth seal that may include a first leg positioned about a high-pressure side of the dovetail tab, a second leg positioned about a low-pressure side of the dovetail tab, and a labyrinth chamber positioned between the first leg and the second leg. High-pressure fluid passing through the gap about the first leg expands within the labyrinth chamber so as to limit an amount of the high-pressure fluid that passes beyond the second leg.
Public/Granted literature
- US20100007092A1 Labyrinth Seal for Turbine Dovetail Public/Granted day:2010-01-14
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