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1. (WO2013122913) COOLING HOLE WITH CURVED METERING SECTION

Pub. No.:    WO/2013/122913    International Application No.:    PCT/US2013/025700
Publication Date: Fri Aug 23 01:59:59 CEST 2013 International Filing Date: Wed Feb 13 00:59:59 CET 2013
IPC: F02C 7/12
F01D 25/12
F01D 5/18
Applicants: UNITED TECHNOLOGIES CORPORATION
Inventors: MONGILLO, Dominic, J.
GLEINER, Matthew, S.
Title: COOLING HOLE WITH CURVED METERING SECTION
Abstract:
A gas turbine engine component includes a cooling hole. The component includes a first wall having an inlet, a second wall having an outlet and a metering section extending downstream from the inlet and having a substantially convex first surface and a substantially concave second surface. The component also includes a diffusing section extending from the metering section to the outlet. A gas turbine engine wall includes first and second surfaces and a cooling hole extending between an inlet at the first surface and an outlet at the second surface. The cooling hole includes a metering section commencing at the inlet and a diffusing section in communication with the metering section and terminating at the outlet. The metering section includes a top portion having a first arcuate surface and a bottom portion having a second arcuate surface. The first and second arcuate surfaces have arcs extending in substantially similar directions.