Patent · US Active

System for changing the pitch of the contra-rotating propellers of a turboshaft engine

US10119409B2 · kind B2 · utility

4Cited by

3References

11Claims

0Family size

Assignee

SAFRAN AIRCRAFT ENGINES · FR

Inventors

Gilles Alain Charier · Montereau-Fault-Yonne, FR
Wouter Balk · Weesp, NL

Key dates

Filing date	Mar 29, 2012
Grant date	Nov 6, 2018
Priority date	—
Expiry date	Mar 9, 2036

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T50/60
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A system, including: a linear actuator axially arranged in a first propeller and rotatably secured thereto, a first linking mechanism connecting a rod of the linear actuator to a second propeller to change a setting of blades thereof, and including an intermediate bearing between the propellers, which is capable of transmitting translation of the rod of the linear actuator and disconnecting a rotatable link to the first propeller to make it possible to change the setting of the blades of the second propeller rotated in an opposite direction to the first propeller, and a second linking mechanism combined with blades of the first propeller to change a setting thereof.

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