Rotary kinetic fluid motors or pumps – With passage in blade – vane – shaft or rotary distributor...
Reexamination Certificate
2005-07-05
2005-07-05
Verdier, Christopher (Department: 3745)
Rotary kinetic fluid motors or pumps
With passage in blade, vane, shaft or rotary distributor...
C415S160000, C416S09600A
Reexamination Certificate
active
06913440
ABSTRACT:
A blade for a stator of a variable-geometry turbine, particularly for aircraft engines; the blade has an airfoil profile hinged to a structure of the stator to rotate about an axis, and having a pressure front wall and a suction rear wall; the blade also has two end walls, which are located at opposite ends of the airfoil profile, cooperate in sliding manner with the structure of the stator, and are cooled, in use, by air flowing through a number of holes; the outlets of the holes are located close to the outer edges between the end walls and the front wall to generate a tangential stream of cooling air by virtue of the pressure difference acting on the front and rear walls.
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European Search Report for EP 03 01 7855 (Aug. 10, 2004).
Ciacci Paolo Lorenzo
Coutandin Daniele
Crode Domenico Dalle
AVIO S.p.A.
Howrey Simon Arnold & White , LLP
Verdier Christopher
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