Turbine section of high bypass turbofan
US-2015377124-A1 · Dec 31, 2015 · US
Counter rotating low pressure turbine with splitter gear system
US9028200B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9028200-B2 |
| Application number | US-201213408229-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 29, 2012 |
| Priority date | Feb 29, 2012 |
| Publication date | May 12, 2015 |
| Grant date | May 12, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A gas turbine engine includes a shaft defining an axis of rotation. An outer turbine rotor directly drives the shaft and includes an outer set of blades. An inner turbine rotor has an inner set of blades interspersed with the outer set of blades. The inner turbine rotor is configured to rotate in an opposite direction about the axis of rotation from the outer turbine rotor. A splitter gear system couples the inner turbine rotor to the shaft and is configured to rotate the inner set of blades at a faster speed than the outer set of blades.
First claim
Opening claim text (preview).
What is claimed is: 1. A gas turbine engine comprising: a shaft defining an axis of rotation; an outer turbine rotor including an outer set of blades; an inner turbine rotor having an inner set of blades interspersed with the outer set of blades, the inner turbine rotor configured to rotate in an opposite direction about the axis of rotation from the outer turbine rotor; and a splitter gear system coupling the inner and outer turbine rotors to the shaft and configured to rot…
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9028200B2 cover?
- A gas turbine engine includes a shaft defining an axis of rotation. An outer turbine rotor directly drives the shaft and includes an outer set of blades. An inner turbine rotor has an inner set of blades interspersed with the outer set of blades. The inner turbine rotor is configured to rotate in an opposite direction about the axis of rotation from the outer turbine rotor. A splitter gear syst…
- Who is the assignee on this patent?
- Suciu Gabriel L, Merry Brian D, Mccune Michael E, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification F02C3/107. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue May 12 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).