Device for controlling the pitch of the blades of a rotorcraft rotor
US5624232A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1995 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Oct 6, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/605
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The device comprises, in addition to the conventional non-rotating plate and rotating plate of a swashplates device, a secondary rotating plate which can move in translation with the non-rotating plate but which cannot be inclined, and, for each blade, an articulated link with two levers which are articulated together and the first of which is articulated to the secondary rotating plate. The second lever is also articulated to the pitch rod controlling the corresponding pitch lever, and it is moreover articulated to a stationary point of the rotating plate. The inclinations of the plates give rise to angular manoeuvres of the levers of each link in order to actuate the pitch rod and control the pitch of the corresponding blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.