Propeller-type propulsion system for an aircraft

US11572191B1 · kind B1 · utility

Assignees

• AIRBUS OPERATIONS SAS · FR
• AIRBUS (S.A.S.) · FR

Inventors

• Jean-François ALLIAS · Toulouse, FR
• Franck Alvarez · Toulouse, FR
• Pascal Pome · Toulouse, FR
• Nicolas Jolivet · Toulouse, FR
• Rémi AMARGIER · Toulouse, FR
• Salvatore Demelas · Getafe, ES
• Norberto SIMIONATO NETO · Schweinhub, DE
• Benedikt Bammer · Schliersee, DE
• Damien Mariotto · Salon-de-Provence, FR

Key dates

• Filing date: Jul 15, 2022
• Grant date: Feb 7, 2023
• Expiry date: Jul 15, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A propeller-type propulsion system for aircraft comprising a propeller, a plurality of electric motors and a gearbox. The gearbox has an output shaft onto which the propeller is mechanically coupled, and has an input shaft onto which the plurality of electric motors is mechanically coupled, the input shaft being off-center with respect to the output shaft. All of the electric motors are mechanically coupled one after the other along the input shaft such that the electric motors are at least partially integrated into a space, on the opposite side of the gearbox from the propeller, that is left free owing to the input shaft and the output shaft being off-center with respect to one another. As a result, the diameter of the propulsion system, in a plane perpendicular to the axis of rotation of the propeller, is reduced. This improves the aerodynamics and the fuel consumption of the aircraft.