Transpiration clearance control turbine

Details Transpiration clearance control turbine Transpiration clearance control turbine

2006-11-15

2010-06-22

Look, Edward (Department: 3745)

Rotary kinetic fluid motors or pumps

With diversely oriented inlet or additional inlet for...

C415S126000, C415S175000

Reexamination Certificate

active

07740443

ABSTRACT:
A row of turbine blades is surrounded by a turbine shroud. The shroud is supported by a turbine case having a pair of radially outwardly extending rails. The rails are perforate for channeling therethrough control air to control thermal radial movement of the case, and in turn radial position of the shroud supported therefrom.

REFERENCES:
patent: 4023731 (1977-05-01), Patterson
patent: 4553901 (1985-11-01), Laurello
patent: 5205115 (1993-04-01), Plemmons et al.
patent: 5205708 (1993-04-01), Plemmons et al.
patent: 5281085 (1994-01-01), Lenahan et al.
General Electric Company, “CF6-80C2 Engine Airflow FADEC Control,” on sale and in public us in USA for more than one year before Sep. 1, 2006; two pages.
General Electric Company, “GE90-115B Engine Airflow,” Jun. 2006; three pages.

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