Flugzeugantriebssystem

Details

Veröffentlichungs-Nr.

EP4238870

Aktenzeichen

EP23154920

Anmeldetag

3. Februar 2023

Veröffentlichung

10. September 2025

Erteilung

10. September 2025

Rechtsraum

EP

IPC

B64D27/10B64D27/24B64D27/31B64D31/18B64D27/33B64D27/02

Abstract

An aircraft propulsion system comprises first and second engines (100, 200) and first (134) and second electrical machines coupled to the first and second engines respectively. The first electrical machine is arranged to be driven by electrical power in order to at least partially drive the first engine. The second electrical machine is arranged to be driven by the second engine to generate electrical power. An electrical network (31) allows transmission of electrical power between the electrical machines. A controller (25) is arranged to selectively reduce fuel flow to the first engine and provide electrical power from the second electrical machine to the first electrical machine to drive the first electrical machine, based on expected properties of contrails formed in an exhaust plume of the first engine and/or the second engine. The system allows the formation of contrails by the engines to be managed in order to mitigate climatewarming effects of the contrails.

Anmelder

Firma

Rolls-Royce plc

Land

🇬🇧 Großbritannien

Fachgebiete