IP Library › Granted Patent US 8,900,090
Granted Patent B2
US 8,900,090 · App. 13/691,171 · Granted Dec 2, 2014

Geared architecture gas turbine engine with improved lubrication and misalignment tolerant roller bearing system

Inventor: William G. Sheridan (Southington, CT)
Assignee: United Technologies Corporation
F02C7/36F16H57/0456F16H57/0421F16H57/0479
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Quick Facts
Patent No.
US 8,900,090
App. No.
13/691,171
Granted
Dec 2, 2014
Kind
B2
Abstract

A gas turbine engine includes a structural oil baffle housing which at least partially supports a set of intermediate gears. Each of the intermediate gears is mounted to a respective flexible carrier post. A spherical joint is mounted to each flexible carrier post and the structural oil baffle housing is mounted to the spherical joint mounted to each flexible carrier post.

Claims (31)

1. A gas turbine engine, comprising:

a geared architecture with a multiple of intermediate gears; and

a structural oil baffle housing that at least partially supports said set of intermediate gears;

wherein each of said multiple of intermediate gears is mounted to a respective flexible carrier post; and

wherein said structural oil baffle housing is mounted to a spherical joint mounted to each flexible carrier post.

2. The gas turbine engine as recited in claim 1 , further comprising a rotationally fixed carrier, each of said multiple of intermediate gears mounted wherein the respective flexible carrier posts extend from said carrier.

3. The gas turbine engine as recited in claim 2 , further comprising an oil manifold defined by said carrier.

4. A gas turbine engine, comprising:

a geared architecture with a multiple of intermediate gears;

a structural oil baffle housing that at least partially supports said set of intermediate gears;

a rotationally fixed carrier, each of said multiple of intermediate gears mounted to a respective flexible carrier post which extends from said carrier; and

an oil manifold defined by said carrier;

wherein said oil manifold includes a first oil circuit and a second oil circuit; and

wherein said first oil circuit communicates with each respective flexible carrier post.

5. The gas turbine engine as recited in claim 4 , wherein said second oil circuit communicates with a multiple of oil nozzles.

6. The gas turbine engine as recited in claim 4 , further comprising a rolling element bearing mounted between said structural oil baffle housing and each of said multiple of intermediate gears.

7. The gas turbine engine as recited in claim 6 , wherein said structural oil baffle housing directs oil to said multiple of intermediate gears.

8. The gas turbine engine as recited in claim 4 , wherein said geared architecture includes a planetary gear system.

9. The gas turbine engine as recited in claim 4 , wherein said geared architecture includes a star gear system.

10. A gas turbine engine, comprising:

a carrier which defines an oil manifold with a first oil circuit and a second oil circuit;

a multiple of flexible carrier post which extends from said carrier to support a respective intermediate gear, said first oil circuit communicates with each respective flexible carrier post;

a structural oil baffle housing which at least partially supports said set of intermediate gears; and

a multiple of oil nozzles in communication with said second oil circuit.

11. The gas turbine engine as recited in claim 6 , wherein said multiple of oil nozzles are external to said structural oil baffle housing.

12. The gas turbine engine as recited in claim 11 , wherein said multiple of oil nozzles are each adjacent to a sun gear and one of said multiple of intermediate gears.

13. The gas turbine engine as recited in claim 10 , further comprising a rolling element bearing mounted between said structural oil baffle housing and each of said multiple of intermediate gears.

14. The gas turbine engine as recited in claim 13 , wherein said rolling element bearing is a ball bearing.

15. The gas turbine engine as recited in claim 13 , wherein said rolling element bearing is a roller bearing.

16. The gas turbine engine as recited in claim 1 , wherein said geared architecture includes a planetary gear system.

17. The gas turbine engine as recited in claim 1 , wherein said geared architecture includes a star gear system.

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 Nov 30, 2012
From: SHERIDAN, WILLIAM G.
To: UNITED TECHNOLOGIES CORPORATION
Reel/Frame 029387/0630 →
Continuity (1)
Related Publication 20140155213A1 · Jun 5, 2014