Direct drive electrically-geared turbofan
US-2024218837-A1 · Jul 4, 2024 · US
Turbine section of high bypass turbofan
US9010085B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9010085-B2 |
| Application number | US-201213599175-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 30, 2012 |
| Priority date | Aug 1, 2007 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
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A turbofan engine has an engine case and a gaspath through the engine case. A fan has a circumferential array of fan blades. The engine further has a compressor, a combustor, a gas generating turbine, and a low pressure turbine section. A speed reduction mechanism couples the low pressure turbine section to the fan. A bypass area ratio is greater than about 6.0. The low pressure turbine section airfoil count to bypass area ratio ratio is below about 170.
First claim
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What is claimed is: 1. A turbofan engine comprising: an engine case; a gaspath through the engine case; a fan having a circumferential array of fan blades; a compressor in fluid communication with the fan; a combustor in fluid communication with the compressor; a turbine in fluid communication with the combustor, the turbine having a low pressure turbine section having 3 to 6 blade stages; and a speed reduction mechanism coupling the low pressure turbine section to the…
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- What does patent US9010085B2 cover?
- A turbofan engine has an engine case and a gaspath through the engine case. A fan has a circumferential array of fan blades. The engine further has a compressor, a combustor, a gas generating turbine, and a low pressure turbine section. A speed reduction mechanism couples the low pressure turbine section to the fan. A bypass area ratio is greater than about 6.0. The low pressure turbine section…
- Who is the assignee on this patent?
- Adams Paul R, Magge Shankar S, Staubach Joseph B, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification F02C7/36. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 21 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).