Abradable non-metallic seal for rotating turbine engines

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

1991-07-22

1994-04-19

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Specific casing or vane material

4151734, 4151744, 415230, 427243, 427447, F03B 316

Patent

active

053040325

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: 1853923 (1928-12-01), Hoffmann
patent: 3547455 (1970-02-01), Dubnt
patent: 4460185 (1984-07-01), Grandey
patent: 4566700 (1986-01-01), Shiembob
patent: 4597582 (1986-07-01), Muller

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