Patent · US Active

System for reducing vibrations or stresses in a rotor blade system

US11091253B2 · kind B2 · utility

0Cited by

6References

5Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Andre Hausberg · Kassel, DE
Steffen Hartmann · Royal Oak, US

Key dates

Filing date	Dec 1, 2016
Grant date	Aug 17, 2021
Priority date	—
Expiry date	Jan 26, 2038

Classification

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

Abstract

In one aspect, the present disclosure provides a system for reducing vibrations or stresses in a rotor blade system. The system may include at least three rotor blades configured to be rotated about a main rotor axis, where each of the three rotor blades may be adjusted by at least one electrically-adjustable control rod of a plurality of control rods. The plurality of control rods may include a first number of control rods forming a first group, and the plurality of control rods may include a second number of control rods forming a second group. A first circuit for may activate or deactivate the first group of control rods, and a second circuit may activate or deactivate the second group of control rods.

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