Abradable non-metallic seal for rotating turbine engine

Details Abradable non-metallic seal for rotating turbine engine Abradable non-metallic seal for rotating turbine engine

1993-01-19

1994-11-15

Willis, Jr., Prince

Compositions

Electrolytes for electrical devices

252 11, 252 124, 252 28, 252 58, 4151701, 4151734, 4151744, 415229, 415230, 264162, 298883, C10M12528, C10M12518

Patent

active

053645430

ABSTRACT:
A turbine engine having an interior housing and one or more annular abradable seals for the turbine blades. The abradable seal comprises a resin having fractured hollow inorganic non-metallic microspheres forming nooks, crannies and undercuts in the resin and a solid lubricant in the resin and in the nooks and crannies and undercuts formed by the fractured hollow non-metallic inorganic microspheres.

REFERENCES:
patent: 3547455 (1970-12-01), Daunt
patent: 3668184 (1972-06-01), Vogl
patent: 3932286 (1976-01-01), Pylaev et al.
patent: 4460185 (1984-07-01), Grandy
patent: 4532054 (1985-07-01), Johnson

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