发明名称 Methods and apparatus for extending gas turbine engine airfoils useful life
摘要 A method enables a gas turbine engine blade to be manufactured to include an airfoil, a platform, a shank, and a dovetail. The platform extends between the airfoil and the shank, the shank extends between the dovetail and the platform, and the dovetail includes at least one tang for securing the blade within the engine. The method comprises defining a cooling cavity in the blade that extends through the airfoil, the platform, the shank, and the dovetail, such that a portion of the cavity defined within the dovetail includes a root passage portion having a first width, and a transition portion extending between the root passage and the portion of the cavity defined within the shank, and wherein the portion of the cavity defined within the shank has a second width that is larger than the root passage first width. The blade is then coated with an environmental resistive coating.
申请公布号 US6932570(B2) 申请公布日期 2005.08.23
申请号 US20020155452 申请日期 2002.05.23
申请人 GENERAL ELECTRIC COMPANY 发明人 HEYWARD JOHN PETER;FLECKER, III CARL ANTHONY;NORRIS TIMOTHY LANE;HEFFRON TODD STEPHEN;WUSTMAN ROGER DALE
分类号 F01D5/08;F01D5/14;F01D5/18;F01D5/28;(IPC1-7):F01D5/18 主分类号 F01D5/08
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