Invention Grant
US07900458B2 Turbine airfoils with near surface cooling passages and method of making same
有权
具有近表面冷却通道的涡轮翼型及其制造方法
- Patent Title: Turbine airfoils with near surface cooling passages and method of making same
- Patent Title (中): 具有近表面冷却通道的涡轮翼型及其制造方法
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Application No.: US11807389Application Date: 2007-05-29
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Publication No.: US07900458B2Publication Date: 2011-03-08
- Inventor: Allister W. James , Anand A. Kulkarni
- Applicant: Allister W. James , Anand A. Kulkarni
- Applicant Address: US FL Orlando
- Assignee: Siemens Energy, Inc.
- Current Assignee: Siemens Energy, Inc.
- Current Assignee Address: US FL Orlando
- Main IPC: B31D3/00
- IPC: B31D3/00

Abstract:
The present invention provides near-surface cooled airfoils that can be made with near-surface cooling passages that are completely free of any leachable or otherwise sacrificial material in the recessed portion of the outer surface of the core. The turbine airfoil comprises a metallic core or substrate having an outer surface and one or a plurality of recessed portions of the outer surface; an intermediate metallic skin or foil having a back surface and a top surface, the back surface of the intermediate skin being bonded to the outer surface of the core such that the recessed portion(s) is sufficiently enclosed so as to form at least one or more near-surface cooling passages or pathways; and at least one or more metallic coatings of a high temperature-resistant metallic material deposited on a top surface of the intermediate skin.
Public/Granted literature
- US20080298975A1 Turbine airfoils with near surface cooling passages and method of making same Public/Granted day:2008-12-04
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