Patent · US Expired

Wing mounting for a rotary wing aircraft

US4547127A · kind A · utility

12Cited by

16References

4Claims

0Family size

Assignee

Messerschmitt-Boelkow-Blohm Gesellschaft mit beschraenkter Haftung · DE

Inventors

Hubert Frommlet
Michael Hahn · San Francisco, US

Key dates

Filing date	Oct 24, 1983
Grant date	Oct 15, 1985
Priority date	—
Expiry date	Oct 24, 2003

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64C27/48
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A flexible blade neck of a helicopter rotor blade is bridged by a torsion gid sleeve for the blade angle adjustments. The radially outer end of the blade neck and sleeve are rigidly connected to the wing section of the blade. The radially inner end of the blade neck forms a blade root which is secure to the rotor head or hub. Additionally, the radially inner ends of the blade root and of the sleeve are interconnected by a ball and socket arrangement permitting a universal movement between the sleeve and the blade neck, thereby decoupling sleeve movements from the blade neck and vice versa.

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