Vortex generation
US-9505485-B2 · Nov 29, 2016 · US
Flight vehicle
US2024300637A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024300637-A1 |
| Application number | US-202418669917-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 21, 2024 |
| Priority date | Nov 24, 2021 |
| Publication date | Sep 12, 2024 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A flight vehicle includes a rotor shaft projecting upward from a body; a rotor head connected to the rotor shaft; and a pair of plate structures located at the upper side of the body and extending in a front-rear direction at right and left sides of the rotor shaft. Each of the pair of plate structures includes a front end, a rear end, an inner surface facing inward in a left-right direction, and an outer surface facing outward in the left-right direction. The front ends of the pair of plate structures are located away from each other in the left-right direction. The rear ends of the pair of plate structures are located away from each other in the left-right direction. During forward flight, pressure at a side where the outer surface is located becomes lower than pressure at a side where the inner surface is located.
First claim
Opening claim text (preview).
What is claimed is: 1 . A flight vehicle comprising: a body; a rotor shaft projecting upward from the body; a rotor head connected to the rotor shaft at an upper side of the body; and a pair of plate structures located at the upper side of the body and extending in a front-rear direction at right and left sides of the rotor shaft, wherein: each of the pair of plate structures includes a front end, a rear end, an inner surface facing inward in a left-right direction, and an outer surface facing outward in the left-right direction; the front ends of the pair of plate structures are located away from each other in the left-right direction; the rear ends of the pair of plate structures are located away from each other in the left-right direction; and each of the pair of plate structures has such a shape that during forward flight, pressure at a side where the outer surface is located becomes lower than pressure at a side where the inner surface is located. 2 . The flight vehicle according to claim 1 , wherein each of the inner surfaces of the pair of plate structures diagonally extends toward an inside in the left-right direction and a rear side. 3 . The flight vehicle according to claim 1 , wherein each of the outer surfaces of the pair of plate structures diagonally extends toward an inside in the left-right direction and a rear side. 4 . The flight vehicle according to claim 1 , wherein each of the pair of plate structures has an arch shape projecting outward in the left-right direction. 5 . The flight vehicle according to claim 1 , wherein the rear ends of the pair of plate structures are located in front of a rear end of a rotation trajectory of a radially outer end of the rotor head. 6 . The flight vehicle according to claim 1 , wherein a distance between the rear ends of the pair of plate structures in the left-right direction is a value that is twice or more a maximum height of the plate structure. 7 . The flight vehicle according to claim 1 , wherein a distance between the rear ends of the pair of plate structures in the left-right direction is a value that is six times or less a maximum height of the plate structure. 8 . The flight vehicle according to claim 1 , wherein: the body includes a top portion that defines an upper opening through which the rotor shaft extends; and the top portion includes a rear portion located behind the rear ends of the plate structures.
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Frequently asked questions
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- What does patent US2024300637A1 cover?
- A flight vehicle includes a rotor shaft projecting upward from a body; a rotor head connected to the rotor shaft; and a pair of plate structures located at the upper side of the body and extending in a front-rear direction at right and left sides of the rotor shaft. Each of the pair of plate structures includes a front end, a rear end, an inner surface facing inward in a left-right direction, a…
- Who is the assignee on this patent?
- Kawasaki Heavy Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification B64C23/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Sep 12 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).