Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1998-06-25
1999-11-30
Verdier, Christopher
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
416 90R, 416 92, 416 97R, 416 97A, 415115, F01D 518, F01D 906
Patent
active
059931566
ABSTRACT:
A turbine vane-system cooling system uses three internal cooling cavities 1, 12, 13) separated by two radial walls (9, 10). The upstream cavity (11) uses a helical ramp (30) and is fed through an intake (22) at the vane root (3). The middle cavity (12) also is fed at the vane root (3) and includes a compartmented, multi-perforated lining (40). The air is exhausted from each compartment through impact orifices and enters the succeeding compartment through slots (42) and then is finally exhausted through a vane-head orifice (21). The vane side walls opposite the downstream cavity (13) have double skins with bridging elements. The air passes through these double skins but circulates centrifugally in the upstream portion (15) of the downstream cavity (13) and enters this cavity's downstream portion (16) to be exhausted through slots (19) in the trailing edge (6). A third wall (14) divides the downstream cavity (13) into two parts (15, 16).
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Bailly Yves Maurice
Coudray Xavier Gerard Andre
Derrien Mischael Francois Louis
Fougeres jean-Michel Roger
Pellier Philippe Christian
Societe Nationale d'Etude et de Construction de Moteurs d'Aviati
Verdier Christopher
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