Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Vane or deflector
Reexamination Certificate
2007-03-28
2010-12-28
Look, Edward (Department: 3745)
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Vane or deflector
C415S209400
Reexamination Certificate
active
07857584
ABSTRACT:
The invention relates to a novel reworking of a geometric shape of a stator vane in order locally to reduce the stress levels. It proposes a novel type of stator section in which a local reworking of the geometry of the vanes has been performed, this reworking making it possible to reduce the level of stress in the brazed joint connecting the vane to its outer shroud without entailing further aerodynamic engineering. To do that, the invention consists in a progressive and localized increase in the radius at the trailing edge combined with a progressive increase in the thickness of the vane.
REFERENCES:
patent: 2110679 (1938-03-01), Robinson
patent: 5474419 (1995-12-01), Reluzco et al.
patent: 6543998 (2003-04-01), Scharl
patent: 1 200 070 (1965-09-01), None
patent: 199 41 133 C 1 (2000-12-01), None
patent: 1 555 390 (2005-07-01), None
patent: WO 2005/116404 (2005-12-01), None
Aynes Claire Jacqueline
Boutteville Evelyne Ginette
Niclot Thierry Jean Maurice
Look Edward
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
SNECMA
White Dwayne J
LandOfFree
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