Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1992-01-30
1993-03-16
Look, Edward L.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
415115, F01D 518
Patent
active
051939800
ABSTRACT:
A hollow turbine blade equipped with a cooling system comprises a pair of internal partitions connected to the intrados and extrados walls of the blade and dividing the interior of the blade into at least one internal cavity extending from the root end to the tip end of the blade, a median partition connected to the two internal partitions to divide the cavity defined between the two internal partitions into two half-cavities, the median partition leaving an aperture at or near one end of the blade to establish communication between the two half-cavities, air inlet holes opening into the half-cavity on the intrados side of the median partition at or near the other end of the blade, air flow disturbing regions disposed on at least part of the internal face of the intrados wall opposite the median partition, and air outlet holes provided in the extrados wall opposite the median partition. Preferably each half-cavity is divided into two passages by half-partitions extending between the median partition and the intrados and extrados walls from root to tip of the blade.
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Patent Abstracts of Japan, vol. 7, No. 133 (M-221) (1278), Jun. 10, 1983, & JP-A-58-48702, Mar. 22, 1983, S. Kobayashi, "Air Cooled Vane in Gas Turbine".
Kaincz Christian
Mazeaud Georges
Miraucourt Carmen
Mortgat Didier M.
Look Edward L.
Societe Nationale d'Etude et de Construction de Moteurs d'Aviati
Verdier Christopher
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