Turbine engines

Details Turbine engines Turbine engines

1992-10-01

1994-03-22

Kwon, John T.

Rotary kinetic fluid motors or pumps

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

Between blade edge and static part

415134, 415136, F01D 520

Patent

active

052957870

ABSTRACT:
A gas turbine engine having a main casing, turbine blades and a segmented cylindrical liner surrounding the tips of the blades is provided with apparatus for compensating for different radial expansions between the blades and the liner. The apparatus comprises a shroud structure, such as a platform of an axially adjacent nozzle guide vane, and a slipper element extending radially from the shroud structure to the liner and coupling one to the other. The slipper element expands circumferentially more slowly than does the shroud structure. Thermal circumferential growth of the shroud structure causes a radial displacement of the liner segments relative to the shroud structure.

REFERENCES:
patent: 4696619 (1987-09-01), Lardellier
patent: 4804310 (1989-03-01), Fuller et al.
patent: 4863345 (1989-09-01), Thompson et al.
patent: 5100291 (1992-03-01), Glover
patent: 5137421 (1992-08-01), Hayton
patent: 5145316 (1992-09-01), Birch
patent: 5178514 (1993-01-01), Damiral
patent: 5192185 (1993-03-01), Leonard
patent: 5211534 (1993-05-01), Catlow
patent: 5228828 (1993-06-01), Damlis et al.

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