Invention Application
- Patent Title: GAS TURBINE ENGINE AIRFOIL IMPINGEMENT COOLING
- Patent Title (中): 气体涡轮发动机空气流动冷却
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Application No.: US14883060Application Date: 2015-10-14
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Publication No.: US20160032416A1Publication Date: 2016-02-04
- Inventor: Tracy A. Propheter-Hinckley , Mark F. Zelesky , Dominic J. Mongillo, Jr. , Matthew A. Devore , Steven Bruce Gautschi , Benjamin T. Fisk
- Applicant: United Technologies Corporation
- Main IPC: C21D9/00
- IPC: C21D9/00 ; B22F3/10 ; B22F3/105 ; B23K15/00 ; B22F5/04

Abstract:
A method of manufacturing an airfoil includes the steps of depositing multiple layers of powdered metal onto one another. The layers are joined to one another with reference to CAD data relating to a particular cross-section of an airfoil. The airfoil is produced with leading and trailing edges joined by spaced apart pressure and suction sides to provide an exterior airfoil surface. An exterior wall provides the exterior airfoil surface at the leading edge. An impingement wall is integrally formed with the exterior wall to provide an impingement cavity between the exterior wall and the impingement wall. Multiple impingement holes are provided in the impingement wall. The impingement holes are spaced laterally across the impingement wall.
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