Patent Number: 8,814,500

Title: Turbine airfoil with shaped film cooling hole

Abstract: A film cooling hole for a turbine airfoil, the film hole having a metering inlet section followed by a diffusion section that has two sidewalls with a sinusoidal shape and with the upstream and downstream walls forming zero diffusion so that a thin slot is formed on the film hole opening. The film hole can be straight or curved in a direction of the film injection.

Inventors: Liang; George (Palm City, FL)

Assignee: Florida Turbine Technologies, Inc.

International Classification: F01D 5/08 (20060101)

Expiration Date: 8/26/12018