Aircraft nacelle with rotary fan cowling incorporating an access hatch
US11161620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2019 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Jan 30, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D29/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An aircraft nacelle comprising an air inlet, with a single fan cowling made of a single piece which extends over all the circumference of the fan. The fan cowling is borne by the air inlet and is mounted to be rotationally mobile about the axis of the nacelle relative to the air inlet, via a link and guiding arrangement comprising a circular rail and a runner capable of sliding along the circular rail. The fan cowling comprises one or more openings closed by hatches allowing access to the interior of the nacelle. The fan cowling has little susceptibility to being deformed both in flight and on the ground during maintenance operations. Furthermore, no pylon portion is needed in the zone of the fan cowling since the latter is not attached to the pylon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.