Rim seal for turbine wheel

Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...

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Details

415115, 4151737, 415200, F01D 508, F01D 528

Patent

active

055035280

ABSTRACT:
A turbine wheel assembly includes a disk having a plurality of blades therearound. A ceramic ring is mounted to the housing of the turbine wheel assembly. A labyrinth rim seal mounted on the disk cooperates with the ceramic ring to seal the hot gases acting on the blades from the disk. The ceramic ring permits a tighter clearance between the labyrinth rim seal and the ceramic ring.

REFERENCES:
patent: 2988325 (1961-06-01), Dawson
patent: 3623736 (1971-11-01), Petrie
patent: 3824030 (1974-07-01), DeFeo
patent: 3963368 (1976-06-01), Emmerson
patent: 3966353 (1976-06-01), Booher, Jr. et al.
patent: 3989410 (1976-11-01), Ferrari
patent: 4425079 (1984-01-01), Speak et al.
patent: 4582467 (1986-04-01), Kisling
patent: 4768924 (1988-09-01), Carrier et al.

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