Invention Grant
- Patent Title: Cooled blade for a gas turbine
- Patent Title (中): 用于燃气轮机的冷却叶片
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Application No.: US13933548Application Date: 2013-07-02
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Publication No.: US09382804B2Publication Date: 2016-07-05
- Inventor: Helen Marie Saxer-Felici , Shailendra Naik , Martin Schnieder
- Applicant: ALSTOM Technology Ltd
- Applicant Address: CH Baden
- Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
- Current Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
- Current Assignee Address: CH Baden
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: EP12174622 20120702
- Main IPC: F01D5/18
- IPC: F01D5/18

Abstract:
A cooled blade is disclosed for a gas turbine that includes a radially extending aerofoil with a leading edge, a trailing edge, a suction side and a pressure side, and wherein a lip overhang is provided on the suction side of the trailing edge The blade also includes a plurality of radial internal flow channels connected via flow bends to form a multi-pass serpentine for a coolant flow, whereby a trailing edge ejection region is provided for cooling the trailing edge, the trailing edge ejection region comprising a trailing edge passage of the multi-pass serpentine running essentially parallel to the trailing edge and being connected over its entire length with a pressure side bleed. An optimized cooling is achieved by also determining the cooling flow from the trailing edge passage to the pressure side bleed by means of a staggered field of pins.
Public/Granted literature
- US20140037460A1 COOLED BLADE FOR A GAS TURBINE Public/Granted day:2014-02-06
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