IP Library Granted Patent US 10,526,909
Granted Patent B2
US 10,526,909 · App. 15/109,910 · Granted Jan 7, 2020

Lightweight journal support pin

Inventors: Michael E. McCune (Colchester, CT); William G. Sheridan (Southington, CT); William P. Ogden (Glastonbury, CT)
Assignee: United Technologies Corporation
F01D15/12F02C3/04F02C7/36F02C9/18F02K3/06F05D2220/323F05D2230/10F05D2230/232F05D2230/60F05D2230/90F05D2260/98F05D2300/141F05D2300/171F05D2300/2284
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Quick Facts
Patent No.
US 10,526,909
App. No.
15/109,910
Granted
Jan 7, 2020
Kind
B2
Abstract

A journal support pin to support intermediate gears for use in gas turbine engine comprises a titanium body, and an outer surface outside of the titanium body having a surface hardness that is harder than the body. A gas turbine engine and a method of forming a journal support pin to support intermediate gears for use in gas turbine engine are also disclosed.

Claims (10)

1. A method of forming a journal support pin to support intermediate gears for use in a gas turbine engine comprising:

providing a titanium body, and

enveloping an outer surface outside of said titanium body with a material having a surface hardness that is harder than said titanium body;

wherein said material is provided by a steel sleeve;

drilling pin holes through the material and into the titanium body;

inserting pins into the holes;

welding the pins to at least one of the material and the titanium body; and

wherein oil supply holes extend from a central bore in said body through said surface.

2. The method as set forth in claim 1 , comprising:

drilling oil supply holes through said material and into said titanium body to a depth of a central passage in said titanium body.

Assignments (3)
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 →
Continuity (2)
Provisional Application 61929145 · Jan 20, 2014
Related Publication 20160326902A1 · Nov 10, 2016