Variable displacement turbine liner

Details Variable displacement turbine liner Variable displacement turbine liner

2006-06-06

2009-12-01

Verdier, Christopher (Department: 3745)

Rotary kinetic fluid motors or pumps

With control means responsive to non-cyclic condition...

Casing, runner, or shaft position or extent of motion...

C415S173100, C415S173200

Reexamination Certificate

active

07625169

ABSTRACT:
A turbine stage of a gas turbine engine is surrounded by a ring of liner segments. The liner segments can be moved radially in unison towards and away from the tips or fins of blades, by rotation of a connected unison ring, so as to avoid blade fin rub. Alternatively, the segments can be moved in a common direction by bodily movement of the connected unison ring so as to avoid blade fin rub during off axis rotation of the turbine stage.

REFERENCES:
patent: 4330234 (1982-05-01), Colley
patent: 5035573 (1991-07-01), Tseng et al.
patent: 5049033 (1991-09-01), Corsmeier et al.
patent: 5096375 (1992-03-01), Ciokailo
patent: 5104287 (1992-04-01), Ciokajlo
patent: 7079957 (2006-07-01), Finnigan et al.
patent: 1 341 834 (1973-12-01), None
patent: 2 108 591 (1983-05-01), None

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