Turbocompressor provided with an abradable coating

Details Turbocompressor provided with an abradable coating Turbocompressor provided with an abradable coating

1984-05-01

1985-08-20

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Erodable or permanently deformable

415170R, 415196, 415197, 416174, 277 96, 277 962, F16J 1516

Patent

active

045361274

ABSTRACT:
An improvement for a turbocompressor having a rotor, a stator and a casing, and an abradable coating provided between the rotor blades and the casing, or between the stator vanes and the rotor, such that the blades make initial contact with the coating to abrade the coating and produce a minimal clearance. The abradable coating is formed on a member having a first layer of carbon-fiber reinforced graphite adapted for attaching the coating member to the casing or rotor, and a second layer of graphite in the region in which the blade tips are intended to rub. The second layer may optionally contain, preferably radially oriented brush-type graphite-fiber reinforcements, or be entirely composed thereof.

REFERENCES:
patent: 2905093 (1959-09-01), Raub et al.
patent: 3053694 (1962-09-01), Daunt et al.
patent: 3092306 (1963-06-01), Eder
patent: 3547455 (1970-12-01), Daunt
patent: 3625634 (1971-12-01), Stedfeld
patent: 4149824 (1979-04-01), Adamson
patent: 4460185 (1984-07-01), Grandy

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