Device for separating foreign particles out of the cooling...

Details Device for separating foreign particles out of the cooling... Device for separating foreign particles out of the cooling...

2006-11-21

2006-11-21

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

C415S121200

Reexamination Certificate

active

07137777

ABSTRACT:
A device separates foreign particles from cooling air fed to turbine rotor blades. The cooling air is fed directly or indirectly via stationary nozzle units to an annular space between wall parts of a turbine stator and rotating wheel disk as a cooling-air stream in the circumferential direction. The annular space communicates with ducts, arranged in the disk, for feeding the cooling air into the blades. A diverter unit is provided inside the annular space or so as to delimit the annular space on one side, so cooling air emerging from the nozzle units, before entering the ducts, is diverted on one side and foreign particles are centrifugally thrown into a radially outer part of the annular space and separated therefrom with a barrier-air fraction. The diverter unit has a surface region on which the stream impinges so it can be diverted radially outward through an angle greater than 90°.

REFERENCES:
patent: 3356340 (1967-12-01), Bobo
patent: 6196791 (2001-03-01), Tomita et al.
patent: 6413044 (2002-07-01), Roeloffs et al.
patent: 0 690 202 (1996-01-01), None
patent: 1 174 589 (2002-01-01), None

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