Composite turbine blade and method of manufacture

Patent metadata

Field	Value
Publication number	US-8944768-B2
Application number	US-201313906075-A
Country	US
Kind code	B2
Filing date	May 30, 2013
Priority date	Dec 7, 2009
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

A composite turbine blade and a method of manufacture thereof is disclosed. The composite turbine blade comprises a turbine blade portion comprising a first material and a first tip plate comprising a second material. The turbine blade portion has an exterior wall and an interior wall surrounding a hollow interior cavity, and a top surface extending from the exterior wall to the interior wall bounding an orifice that is fluidly connected to the hollow interior cavity. The first tip plate may be attached to the turbine blade along the top surface and extending from proximate the exterior wall of the turbine blade across the orifice to cover the orifice.

First claim

What is claimed is:

1. A composite turbine blade comprising:
a turbine blade portion comprising a first material, the turbine blade portion comprising an airfoil portion having a tip and a root and a platform portion attached to the airfoil portion at the root, the platform portion comprising an orifice passing therethrough; and
an insert attached within the orifice of the platform portion, the insert comprising a second material;
wherein the second material comprises a differ…

Assignees

• Gen Electric

Inventors

• Hunt Mark L
• Dimascio Paul Stephen
• Miglietti Warren Martin
• Byam Steve P
• O'Connell Matthew James

Classifications

• B23P15/04

  Operations & Transport · mapped topic

• F01D5/282

  Mechanical Engineering · mapped topic

• F01D5/147 Primary

  Mechanical Engineering · mapped topic

• F01D5/20

  Mechanical Engineering · mapped topic

• Y10T29/49337

  Cross-Sectional Technologies · mapped topic