Flow cavity arrangement

Details Flow cavity arrangement Flow cavity arrangement

2011-01-25

2011-01-25

Kershteyn, Igor (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, C415S173700, C415S174400, C415S174500, C416S09600A

Reexamination Certificate

active

07874799

ABSTRACT:
It is known with regard to particularly cavities below high pressure turbine discs that mixing of hot gas leakage flows through an inner seal with cooling flows can diminish the effectiveness of that cooling flow when presented to other parts for cooling. By providing a path within a wall which is particularly shaped in portions it is possible to provide entrainment of a hot leakage gas flow away from entry into the cavity. Thus, the cooling flow retains a higher cooling effect and maintains its swirling nature in comparison with prior arrangements where mixing with the hot leakage flow occurred.

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