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US-11898497-B2 · Feb 13, 2024 · US
Oil purge system for a mid turbine frame
US8944749B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8944749-B2 |
| Application number | US-201213356701-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 24, 2012 |
| Priority date | Jan 24, 2012 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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An oil purge system for a mid turbine frame (MTF) of a gas turbine engine has an oil transfer tube surrounded by a heat shield tube. The oil transfer and heat shield tubes extend at their respective inner ends downwardly from an oil port of a bearing housing and terminate at their respective outer ends projecting outwardly from an annular wall of an outer case of the MTF. Oil leaked from the oil port is purged by pressurized air through an annular cavity formed between the oil transfer and heat shield tubes, and is discharged out of the MTF.
First claim
Opening claim text (preview).
The invention claimed is: 1. A gas turbine engine having a mid turbine frame, the mid turbine frame comprising: a bearing housing and an annular outer case connected together by a plurality of radial struts; an annular inter-turbine duct disposed radially between the annular bearing housing and the annular outer case for conducting hot gases axially through the mid turbine frame, the annular inter-turbine duct defining a plurality of radial hollow strut fairings extending theret…
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Mechanical Engineering · mapped topic
- F02C7/24Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US8944749B2 cover?
- An oil purge system for a mid turbine frame (MTF) of a gas turbine engine has an oil transfer tube surrounded by a heat shield tube. The oil transfer and heat shield tubes extend at their respective inner ends downwardly from an oil port of a bearing housing and terminate at their respective outer ends projecting outwardly from an annular wall of an outer case of the MTF. Oil leaked from the oi…
- Who is the assignee on this patent?
- Durocher Eric, Pietrobon John, Szlanta Zenon, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification F02C7/24. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).