IP Library Granted Patent US 8,966,756
Granted Patent B2
US 8,966,756 · App. 13/010,174 · Granted Mar 3, 2015

Gas turbine engine stator vane assembly

Inventors: Steven J. Feigleson (Falmouth, ME); Dennis R. Tremblay (Biddeford, ME); William R. Edwards (Stratham, NH)
Assignee: United Technologies Corporation
F01D9/042F01D25/285F05D2230/60F05D2240/55
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Quick Facts
Patent No.
US 8,966,756
App. No.
13/010,174
Granted
Mar 3, 2015
Kind
B2
Abstract

A method of assembling gas turbine engine front architecture includes positioning inner and outer fairings relative to one another. Multiple vanes are arranged circumferentially between the inner and outer fairings. A liquid sealant is applied around a perimeter of the vanes to seal between the vanes and at least one of the fairings.

Claims (6)

1. A method of assembling gas turbine engine front architecture comprising the steps of:

positioning inner and outer fairings relative to one another;

arranging multiple vanes circumferentially between the inner and the outer fairings, the arranging step includes inserting the vanes into first and second slots respectively provided in the outer and inner fairings, each vane includes an airfoil having outer and inner perimeters respectively received in the first and second slots, the arranging step includes providing gaps between the outer and the inner perimeters and the outer and inner fairings at their respective first and second slots, wherein the inner perimeters are suspended relative to the inner fairing and the outer perimeters are suspended relative to the outer fairing;

applying a liquid sealant around a perimeter of each end of the vanes at the both of the respective inner and outer fairings, the applying step includes laying the liquid sealant about both the inner and outer perimeters within their respective gaps, the applying step is performed subsequent to the arranging step and the gaps are maintained during the applying step; and

bonding and supporting the ends of vanes relative to the one of the fairings with the liquid sealant, wherein there is no direct contact between the vanes and the inner and outer fairings, wherein the liquid sealant provides the only mechanical connection and support of the vanes relative to both the inner and outer fairings.

2. The method according to claim 1 , wherein the liquid sealant is silicone rubber provided in one of a thixotropic formulation or a room temperature vulcanization formulation, the liquid sealant providing a solid seal in a cured state.

Assignments (4)
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064714/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE AND REMOVE PATENT APPLICATION NUMBER 11886281 AND ADD PATENT APPLICATION NUMBER 14846874. TO CORRECT THE RECEIVING PARTY ADDRESS PREVIOUSLY RECORDED AT REEL: 054062 FRAME: 0001. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF ADDRESS. Recorded Mar 4, 2021
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 055659/0001 →
CHANGE OF NAME Recorded Sep 4, 2020
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 054062/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 20, 2011
From: FEIGLESON, STEVEN J.; TREMBLAY, DENNIS R.; EDWARDS, WILLIAM R.
To: UNITED TECHNOLOGIES CORPORATION
Reel/Frame 025668/0632 →
Continuity (1)
Related Publication 20120189438A1 · Jul 26, 2012