Patent · US Active

Rotor blade with control flap

US9415868B2 · kind B2 · utility

2Cited by

9References

8Claims

0Family size

Assignee

AIRBUS HELICOPTERS DEUTSCHLAND GMBH · DE

Inventors

Rupert Pfaller · Riemerling, DE
Bernhard Enenkl · Zetel, DE

Key dates

Filing date	Feb 14, 2014
Grant date	Aug 16, 2016
Priority date	—
Expiry date	Apr 26, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T50/30
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A rotor blade (1) with an exterior shell (20) extending in a span and chord wise direction and at least one control flap (4) extending in essentially span wise direction to said exterior shell (20). Load transmission means inside said blade chamber (7) comprise piling type housings (13) respectively with one actuator (8, 9), one flap drive (10, 11) and a longitudinal girder (15). Said at least one piling type housing (13) comprises at least one upper strap (14) and at least one lower strap (14) oriented essentially in said chord direction in between said longitudinal girder (15) on the one side and the support for said at least one actuator (8, 9) on the other side, each of said upper and lower straps (14) being symmetric aligned in chord direction relative to at least two pivot bearings (35, 36). Said upper and lower straps (14) are stiff in chord direction and flexible in span wise direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.