Quick engine change assembly for outlet guide vanes

Patent metadata

Field	Value
Publication number	US-9303531-B2
Application number	US-201213652962-A
Country	US
Kind code	B2
Filing date	Oct 16, 2012
Priority date	Dec 9, 2011
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

Abstract

A quick engine change assembly, comprises a first circular frame member, a plurality of doublet supports spaced about the first circular frame member, the doublet supports being contoured along the axial direction, a flow surface defined between the plurality of doublet supports and, a plurality of cradles, each of the cradles including the doublet supports, the doublet supports from a lower portion of the cradle to the flow surface.

First claim

What is claimed is:

1. A quick engine change assembly, comprising:
a first circular frame member;
fillets extending radially outward from radially outer portions of said first circular frame member; and
a plurality of doublet supports delimited by said fillets and spaced about said first circular frame member, said doublet supports being contoured along the axial direction;
a flow surface defined between said plurality of doublet supports; and,
a plurality of cradles, each of said cradles including said doublet supports;
said doublet supports extending from a lower portion of said cradle to said flow surface; and
further comprising a platform bolted through a doublet at said cradle.

2. The quick engine change assembly of claim 1 , said first circular frame member further comprising a first ring and a second ring which define a quick engine change ring.

3. The quick engine change assembly of claim 2 wherein said first ring and said second ring are continuous.

4. The quick engine change assembly of claim 1 wherein a second circular frame member is a fan case.

5. The quick engine change assembly of claim 4 , wherein doublets radially extend between said first circular frame member and said fan case.

6. The quick engine change assembly of claim 1 wherein said first circular frame member is connected to a fan case.

7. The quick engine change assembly of claim 1 wherein said first circular frame member is a fan case.

8. The quick engine change assembly of claim 1 wherein said first circular frame member is connected to a fan hub frame.

9. The quick engine change assembly of claim 1 wherein said first circular frame member is a fan hub frame.

10. The quick engine change assembly of claim 1 further comprising a plurality of single guide vanes extending from said first circular frame member toward a fan case.

11. A quick engine change assembly, comprising:
a first circular frame member;
fillets extending radially outward from radially outer portions of said first circular frame member; and
a plurality of doublet supports delimited by said fillets and spaced about said first circular frame member, said doublet supports being contoured along the axial direction;
a flow surface defined between said plurality of doublet supports; and,
a plurality of cradles, each of said cradles including said doublet supports;
said doublet supports extending from a lower portion of said cradle to said flow surface; and
further comprising a plurality of single guide vanes extending from said first circular frame member toward a fan case, said plurality of single guide vanes each having four feet at a radially inner end and at a radially outer end.

12. The quick engine change assembly of claim 1 wherein said assembly allows disconnect and removal of a propulsor.

13. A quick engine change assembly, comprising:
a continuous circular frame having a first ring and an axially opposed second ring;
fillets extending radially outward from radially outer portions of said first ring and said second ring; and
an axially extending cradle delimited by said fillets and said radially outer portions;
said cradle having bolt apertures extending in the radial direction; and
said fillets rising toward a flow path surface disposed adjacent said cradle.

14. The quick engine change assembly of claim 13 , said circular frame being formed from a single piece of material.

15. The quick engine change assembly of claim 13 , said circular frame being formed from multiple pieces joined together.

16. The quick engine change assembly of claim 13 , said circular frame having quick engine change apertures spaced apart circumferentially.

Assignees

• Gen Electric

Inventors

• Hasting William Howard
• Tudor Courtney James

Classifications

• F01D25/246 Primary

  Fastening of diaphragms or stator-rings · CPC title

• F01D9/04

  forming ring or sector · CPC title

• F05D2240/12

  Fluid guiding means, e.g. vanes · CPC title

• F05D2300/6033

  Ceramic matrix composites [CMC] · CPC title

• Y02T50/673

  Cross-Sectional Technologies · mapped topic