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Frangible airfoil for gas turbine engine

一种翼型件、翼弦的技术，应用在易碎翼型件领域，能够解决效率低、昂贵等问题

Active Publication Date: 2019-07-05
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this approach is generally expensive
Additionally, this approach can result in a larger, heavier, less efficient fan case

Method used

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  • Frangible airfoil for gas turbine engine
  • Frangible airfoil for gas turbine engine
  • Frangible airfoil for gas turbine engine

Examples

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Embodiment Construction

[0055] Reference will now be made in detail to embodiments of the invention, one or more examples of which are illustrated in the accompanying drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.

[0056] As used herein, the terms "first," "second," and "third" may be used interchangeably to distinguish one element from another, and are not intended to denote the position or importance of individual elements .

[0057] The ter...

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PUM

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Abstract

The invention relates to a frangible airfoil for a gas turbine engine. An airfoil defining a chordwise dimension, a spanwise dimension, a leading edge, a trailing edge, a root, and a tip, is generallyprovided. The airfoil includes a first material substrate defining a pressure side and a suction side. The first material substrate defines a plurality of discrete volumes extended from at least oneof the pressure side or the suction side into the first material substrate. The plurality of discrete volumes is arranged at least partially along the chordwise dimension and a second material substrate different from the first material substrate is defined at least partially within the volume.

Description

technical field [0001] This topic concerns frangible airfoils for gas turbine engines. Background technique [0002] Gas turbine engines, such as turbofans, generally include a fan case surrounding a fan assembly. The fan case is generally constructed to withstand impact to the fan blades due to adverse engine conditions leading to failure modes such as foreign object damage, hard friction due to excessive or extreme imbalance or fan rotor oscillation, or fan blade release . However, such airfoil configurations generally increase the weight of the fan case, thereby increasing the weight of the engine and aircraft and reducing performance and efficiency. [0003] Known fan cases generally include a frangible structure, such as honeycomb or trench fill material, configured to mitigate load transfer to and through the fan case. However, this approach is generally expensive. Additionally, this approach can result in a larger, heavier, less efficient fan case. Still further,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/02F04D29/38
CPCF04D29/023F04D29/324F04D29/384F05D2220/36F01D5/282F01D5/284F05D2300/6033F05D2300/6032F01D5/147Y02T50/60F05D2250/184F05D2220/32F05D2250/12F05D2240/30F05D2260/311F05D2250/14
Inventor D.W.克拉尔
Owner GENERAL ELECTRIC CO