Gas turbine engines

Details Gas turbine engines Gas turbine engines

1987-03-20

1987-10-27

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

With diversely oriented inlet or additional inlet for...

415115, F01D 1102

Patent

active

047026707

ABSTRACT:
The cooling air from the nozzle guide vanes of a gas turbine engine is discharged from one or both platforms to discourage leakage flow between rotating and static components of the engine.
In the case of the outboard platform the cooling air is discharged towards the engine casing to flow through the clearance between the shroud of the engine casing and the shroud of the turbine blades. This arrangement reduces the leakage flow of gas from the main gas stream and assists in reducing casing temperatures.

REFERENCES:
patent: 3746462 (1973-07-01), Fukuda
patent: 3836279 (1974-09-01), Lee
patent: 3975901 (1976-08-01), Hallinger et al.
patent: 4161318 (1979-07-01), Stuart et al.
patent: 4353679 (1982-10-01), Hauser
patent: 4403917 (1983-09-01), Laffitte et al.
patent: 4447190 (1984-05-01), Campbell
patent: 4522557 (1985-06-01), Bouiller et al.

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