Leakage and Power Loss Test Results for Competing Turbine Engine Seals
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH GLENN RESEARCH CENTER
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Advanced brush and finger seal technologies offer reduced leakage rates over conventional labyrinth seals used in gas turbine engines. To address engine manufacturers concerns about the heat generation and power loss from these contacting seals, brush, finger, and labyrinth seals were tested in the NASA High Speed, High Temperature Turbine Seal Test Rig. Leakage and power loss test results are compared for these competing seals for operating conditions up to 922 K 1200 degrees F inlet air temperature, 517 KPa 75 psid across the seal, and surface velocities up to 366 ms 1200 fts.
- Adhesives, Seals and Binders
- Jet and Gas Turbine Engines