High effectiveness cooled turbine blade

US7625178B2 · kind B2 · utility

Assignee

• HONEYWELL INTERNATIONAL INC. · US

Inventors

• Mark C. Morris · Phoenix, US
• George W. Wolfmeyer · Tempe, US
• Luis Tapia · Maricopa, US
• Vivek Agarwal · Campbell, US
• Kin Poon · Tempe, US
• Jason Smoke · Phoenix, US
• William C. Baker · Phoenix, US
• Henry M. Armstrong · Phoenix, US

Key dates

• Filing date: Aug 30, 2006
• Grant date: Dec 1, 2009
• Expiry date: Oct 10, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49341
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An air-cooled turbine blade is provided having an airfoil shape defined by a convex suction side wall, a concave pressure side wall, a leading edge, a trailing edge, a root and a tip, the walls and the tip each including an interior surface that defines an interior with the root, the trailing edge including a plurality of slots formed thereon. The blade includes a suction side flow circuit formed therein comprising a forward and an aft flow circuit. The blade also includes a tip flow circuit extending along the tip interior surface to at least one of the trailing edge slots and including a first and a second opening, the first opening in flow communication with the suction side forward flow circuit outlet, and the second opening in flow communication with a cross-over hole of the suction side aft flow circuit. Methods of manufacturing the blade are also provided.