Multiform film cooling holes

Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...

Reexamination Certificate

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Reexamination Certificate

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10991805

ABSTRACT:
A turbine wall includes a plurality of first and second film cooling holes arranged in a common row. The holes have multiple forms and alternate in the row for collectively providing film cooling performance therefrom.

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Schiele et al, “Gas Turbine Heat Transfer: Past and Future Challenges,” J. of Propulsion and Power, AIAA, vol. 16, No. 4, Jul.-Aug. 2000, pp. 583-589.

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