Rotorcraft blade provided with a tiltable flap
US7578654B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2006 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jan 8, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotorcraft rotor blade (1) includes at least one tiltable trailing-edge flap (5), the flap (5) being suitable for pivoting about a virtual hinge axis (Y′) extending substantially along the span of the blade (1) and of the flap (5). The blade (1) is remarkable in that it is provided with at least one main ball joint (30) provided with an inner cage (32) together with a first pin (31) and an outer cage (33), the front portion (33′) of the outer cage (33) of the main ball joint (30) being connected to a linear actuator (10, 10′) arranged in the blade (1) and serving to pivot the flap (5), the first pin (31) of the main ball joint (30) being substantially perpendicular to the virtual hinge axis (Y′) about which the flap (5) pivots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.