Ceiling fan hanger assembly
US-2024011505-A1 · Jan 11, 2024 · US
Propeller hub having a reinforced polygonal ring and turbine engine provided with such a hub
US9255583B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9255583-B2 |
| Application number | US-201013513979-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 6, 2010 |
| Priority date | Dec 7, 2009 |
| Publication date | Feb 9, 2016 |
| Grant date | Feb 9, 2016 |
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Abstract
Official abstract text for this publication.
A variable pitch blade propeller hub for a turbomachine with a longitudinal axis includes a polygonal ring supporting the blades, concentric with the longitudinal axis and including two spaced parallel annular end flanges between which are diametrically fastened, by root areas arising from the annular flanges, collars with cylindrical radial housings to receive the blades. The collars are equi-angularly distributed at the lateral periphery of the polygonal ring and separated from each other by intermediate areas with through-openings. The also includes connectors connecting the polygonal ring to a turbine rotor element of the turbomachine. The intermediate areas defined between two concentric collars and the annular end flanges include elements for reinforcing the collars that are arranged radially and/or tangentially and fastened at least to the lateral walls of two consecutive collars.
First claim
Opening claim text (preview).
The invention claimed is: 1. A variable pitch blade propeller hub for a turbomachine with a longitudinal axis, comprising: a polygonal ring supporting a plurality of blades, the polygonal ring being concentric with the longitudinal axis and including two spaced parallel annular end flanges to which are diametrically fastened by root areas arising from said annular flanges a plurality of collars, each of the collars having a cylindrical radial housing to receive one of the blades,…
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Classifications
Mechanical Engineering · mapped topic
Operations & Transport · mapped topic
- F04D29/329Primary
Mechanical Engineering · mapped topic
- B64C11/06Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US9255583B2 cover?
- A variable pitch blade propeller hub for a turbomachine with a longitudinal axis includes a polygonal ring supporting the blades, concentric with the longitudinal axis and including two spaced parallel annular end flanges between which are diametrically fastened, by root areas arising from the annular flanges, collars with cylindrical radial housings to receive the blades. The collars are equi-…
- Who is the assignee on this patent?
- Boston Eric Jacques, Bouru Michel Andre, Jablonski Laurent, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification F04D29/329. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 09 2016 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).