High coverage shaped diffuser film hole for thin walls

Details High coverage shaped diffuser film hole for thin walls High coverage shaped diffuser film hole for thin walls

1993-10-15

1995-01-17

Look, Edward K.

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

415116, 416 97R, F01D 518

Patent

active

053821335

ABSTRACT:
A film cooling passage through the external wall of a hollow airfoil having in serial flow relation a metering section and a diffusing section, the diffusing section characterized in that it has four inward facing surfaces that define a passage having a generally rectangular cross-section and an outlet over which a hot gas stream flows in a "downstream" direction. One of the surfaces of the diffusing section is generally "downstream" of the other surfaces, and this surface defines a section of a circular cylinder.

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patent: 4705455 (1987-11-01), Sahm et al.
patent: 4738588 (1988-04-01), Field
patent: 5223320 (1993-06-01), Richardson

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