System and method for providing for collective control in an aircraft
US-9193454-B2 · Nov 24, 2015 · US
Control system and method for rotor assembly
US8979495B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8979495-B2 |
| Application number | US-95943910-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 3, 2010 |
| Priority date | Dec 21, 2009 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A rotor assembly includes a rotor shaft rotatable about a rotor axis and a plurality of rotor blades operably connected to the rotor shaft. A rotor control assembly has a plurality of substantially concentric control tubes extending through the rotor shaft. Each control tube of the plurality of control tubes is operably connected to a rotor blade of the plurality of rotor blades such that movement of one or more of the control tubes of the plurality of control tubes along the rotor axis effects a pitch change in one or more rotor blades of the plurality of rotor blades. A method of controlling pitch of a plurality of rotor blades of a rotor assembly includes locating a plurality of concentric control tubes inside of a rotor shaft of the rotor assembly capable of changing a pitch of one or more of the rotor blades.
First claim
Opening claim text (preview).
The invention claimed is: 1. A rotor assembly comprising: a rotor shaft rotatable about a rotor axis; a plurality of rotor blades operably connected to the rotor shaft; a rotor control assembly including a plurality of substantially concentric control tubes extending through the rotor shaft, each control tube of the plurality of control tubes operably connected to a rotor blade of the plurality of rotor blades such that movement of one or more of the control tubes of the plura…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B64C27/605Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8979495B2 cover?
- A rotor assembly includes a rotor shaft rotatable about a rotor axis and a plurality of rotor blades operably connected to the rotor shaft. A rotor control assembly has a plurality of substantially concentric control tubes extending through the rotor shaft. Each control tube of the plurality of control tubes is operably connected to a rotor blade of the plurality of rotor blades such that movem…
- Who is the assignee on this patent?
- D Anna Frank P, Sikorsky Aircraft Corp
- What technology area does this patent fall under?
- Primary CPC classification B64C27/605. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 17 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).