Free propeller assembly structure and aircraft structure having the same
US-12077285-B2 · Sep 3, 2024 · US
Deicing device for propfan-type propeller blades
US8932016B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8932016-B2 |
| Application number | US-201013318505-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 3, 2010 |
| Priority date | May 5, 2009 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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Abstract
Official abstract text for this publication.
A deicing device for propfan-type aircraft propulsion unit blades, wherein the propulsion unit includes a turbomachine that drives in rotation at least one rotor including a plurality of blades arranged around an annular crown moving with the blades, which forms with its outer wall part of an outer envelope of the propulsion unit, the outer envelope being subjected to atmospheric conditions outside the propulsion unit, the turbomachine generating a flow of hot gases that exit via an annular vein, which is concentric with the moving annular crown, and defined for part of its surface by the inner wall of the moving annular crown. The deicing device includes: a mechanism capturing thermal energy from the annular vein, within the moving annular part; a mechanism transferring thermal energy towards the rotor blades; and a mechanism distributing the thermal energy onto at least a part of the surface of the blades.
First claim
Opening claim text (preview).
The invention claimed is: 1. A deicing device for propfan-type aircraft propulsion unit blades, wherein the propulsion unit includes a turbomachine that drives in rotation, through a transmission system, at least one rotor including a plurality of blades arranged around an annular crown moving with the blades, which forms with an outer wall of the annular crown part of an outer envelope of the propulsion unit, the outer envelope being subjected to atmospheric conditions outside the…
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Cross-Sectional Technologies · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B64C11/48Primary
Operations & Transport · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8932016B2 cover?
- A deicing device for propfan-type aircraft propulsion unit blades, wherein the propulsion unit includes a turbomachine that drives in rotation at least one rotor including a plurality of blades arranged around an annular crown moving with the blades, which forms with its outer wall part of an outer envelope of the propulsion unit, the outer envelope being subjected to atmospheric conditions out…
- Who is the assignee on this patent?
- Bulin Guillaume, Rogero Jean-Michel, Fabre Christian, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B64C11/48. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 13 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).