Patent · US Active

Partly cruciform flexbeam and method of manufacturing such a flexbeam

US9623963B2 · kind B2 · utility

0Cited by

22References

6Claims

0Family size

Assignee

AIRBUS HELICOPTERS DEUTSCHLAND GMBH · DE

Inventors

Gerald Kuntze-Fechner · Waakirchen, DE
Martin Ortner · Unterhaching, DE

Key dates

Filing date	Feb 26, 2014
Grant date	Apr 18, 2017
Priority date	—
Expiry date	Sep 22, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/4932
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A partly cruciform flexbeam (1) of a bearingless main rotor system of a helicopter with a hub drive and an airfoil blade. The partly cruciform flexbeam (1) comprises a flexbeam head (2) with a flat bearing laminate at one end, a root end (3) opposed to said flexbeam head (2) and a flexbeam body (6) between said flexbeam head (2) and said root end (3), said flexbeam body (6) being torsion soft with a substantially cruciform cross section. The invention is as well related to a method of manufacturing such a partly cruciform flexbeam (1).

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