A new concept of a near-contact gas seal is experimentally investigated. A simulated gas face seal for a high-speed gas turbine engine is used for the investigation. A baseline conventional contacting-type seal is compared with an identical seal that was laser surface textured (LST) to turn it into a near-contact gas seal. Results show the potential benefits of the new concept in terms of smoother running, lower friction torque, and lower face temperature at 12,000 RPM over a range of face loading.
Issue Section:
Research Papers
Keywords:
surface texture,
seals (stoppers),
gas turbines,
friction,
laser materials processing,
Seals,
Gas Seals,
Surface Texturing,
Gas Turbine Engines
Topics:
Friction,
Gas turbines,
Inspection,
Lasers,
Rotors,
Temperature,
Torque,
Stress,
Carbon,
Wear
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.Copyright © 2004
by ASME
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