Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2007-03-20
2007-03-20
Verdier, Christopher (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
C415S115000
Reexamination Certificate
active
10909360
ABSTRACT:
A hollow blade includes an internal cooling passage, an open cavity located at the tip of the blade and bounded by an end wall and a rim and cooling channels that connect the said internal cooling passage to the outer face of the pressure wall. The cooling channels are inclined to the pressure wall in such a way that they emerge on the outer face of the pressure wall near the top of the said rim. A reinforcement of material is present between the rim and the end wall of the cavity along at least one portion of the pressure wall , whereby the said rim is widened at its base adjacent to the said end wall in such a way that the cooling channels emerge near the top of the rim without reducing the mechanical strength of the tip of the blade.
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Boury Jacques
Judet Maurice
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Snecma Moteurs
Verdier Christopher
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