Aircraft propeller comprising collapsible variable pitch blades
US10683081B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2017 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Jun 4, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C11/32
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Propeller for an aircraft engine comprising: a blade mounting associated with each blade, mounted so as to pivot on the hub according to an incident pitch axis; a pivoting link between each blade mounting and the root, allowing the blade to pivot relative to the blade mounting thereof according to a blade collapsing axis; associated with at least one of the blades, a member for controlling the collapsing/extension of the blade configured to pivot the root relative to the blade mounting according to the collapsing axis; and a passive device for synchronising the collapsing/extension of the blades, including a central synchronisation element mounted so as to rotate relative to the hub according to the propeller rotation axis, as well as a coupling element associated with each blade, including a first end mounted on the blade root and a second end mounted on the central synchronisation element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.