Method of driving an aircraft undercarriage between a deployed position and a retracted position
US11104425B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2019 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Mar 13, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C25/34
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method of driving an aircraft undercarriage between a deployed position and a retracted position, the undercarriage comprising a leg (2) that is hinged to a structure of the aircraft in order to be movable between those two positions and being stabilized in the deployed position by means of a brace member (10) comprising two limbs (11, 12) that are hinged to each other, one of which is coupled to the leg and the other of which is coupled to the structure of the aircraft, the limbs being brought into an aligned position when the leg is in the deployed position. According to the invention, a rotary actuator (20) is arranged on the aircraft, which actuator comprises first and second cranks (22, 24) that are mounted to turn freely about a common axis of rotation but that have a relative angular position that can be controlled, and that are arranged to stabilize the limbs of the brace member in the substantially aligned position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.