Patent · US Active

Rotorcraft with a stabilizer wing

US11485487B2 · kind B2 · utility

0Cited by

5References

18Claims

0Family size

Assignee

AIRBUS HELICOPTERS DEUTSCHLAND GMBH · DE

Inventors

Martin Embacher · Augsburg, DE
Tobias RIES · Blankenburg, DE
Christian Eckert · Augsburg, DE
Thomas KNEISCH · Gernsbach, DE

Key dates

Filing date	Feb 27, 2020
Grant date	Nov 1, 2022
Priority date	—
Expiry date	May 13, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T50/10
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A rotorcraft, and, more particularly, to a rotorcraft with a fuselage having a center line, at least one main rotor that generates vortices during operation, and a stabilizer wing, whereby the stabilizer wing has a planform that reduces the unsteady aerodynamic loads caused by the wake of the at least one main rotor. In particular, the stabilizer wing may be provided with a left wing tip, a right wing tip, a quarter chord line with a non-zero curvature, such that an interaction between the vortices generated by the at least one main rotor and the quarter chord line is spread out over time, a leading edge that is arc-shaped, and a trailing edge that is arc-shaped.

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