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Honeycomb Seals

Honeycomb damper seals

Honeycomb seals were initially used in the aerospace industry in air-breathing gas turbine engines as abradable stator components for high-pressure turbine stages. Later, honeycomb seals were used in cryogenic rocket engine turbopumps as a damper seal at the balance piston location. Eventually this technology was adopted by the industrial market, which primarily focused on applications in high-pressure centrifugal compressors.

Bearings Plus engineers these seals using a bulk-flow analysis tool to model the steady state and dynamic performance optimized for the specific application. Key metrics that are optimized include the required leakage and dynamic coefficients, which are evaluated in a complete rotordynamic analysis of the entire rotor-bearing system.

 

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