EP 4058349 A2 20220921 - SYSTEMS, ARRANGEMENTS, STRUCTURES AND METHODS FOR AIRCRAFT

Title (en)

SYSTEMS, ARRANGEMENTS, STRUCTURES AND METHODS FOR AIRCRAFT

Title (de)

SYSTEME, ANORDNUNGEN, STRUKTUREN UND VERFAHREN FÜR FLUGZEUGE

Title (fr)

SYSTÈMES, AGENCEMENTS, STRUCTURES ET PROCÉDÉS POUR AÉRONEF

Publication

EP 4058349 A2 20220921 (EN)

Application

EP 20864295 A 20201001

Priority

GB 201914227 A 20191002
GB 201914219 A 20191002
GB 201914225 A 20191002
GB 201914224 A 20191002
GB 201914223 A 20191002
GB 201914220 A 20191002
GB 201916137 A 20191106
GB 201916139 A 20191106
GB 201916138 A 20191106
GB 201916136 A 20191106
GB 201917074 A 20191122
GB 202003500 A 20200311
GB 202003503 A 20200311
GB 202003504 A 20200311
GB 202003513 A 20200311
GB 202003496 A 20200311
GB 202003497 A 20200311
GB 202003505 A 20200311
GB 202003511 A 20200311
GB 202003498 A 20200311
GB 202003501 A 20200311
GB 202003502 A 20200311
GB 202003509 A 20200311
GB 202003512 A 20200311
GB 2020052378 W 20201001

Abstract (en)

[origin: GB2587668A] A thermal management system has a rotating hub 60 of an aircraft propulsion system with an aperture 64 suitable for facilitating airflow into a nacelle 20 to manage the temperature of components. The hub may have a duct extending through it with the aperture opening into the duct. The propulsion system preferably has propellers 12 and the hub is a propeller hub; the nacelle being part of an aircraft wing. An airflow generator (fig.6,50), such as a fan (fig.6,52) driven by the propeller drive shaft (fig.6,54), may be provided to draw air into the nacelle through the aperture. A fairing or nose cone 62 may be provided over the hub, also provided with an aperture and duct. The fairing may be 3D printed and/or cast with channels 66 formed in the fairing duct; when the fairing is rotated the channels, in the form of an axial compressor, draw air into the nacelle, increasing the pressure of the airflow. The components may be an electric motor 14 and/or power electronics. The system may provide cooling when the propellers are rotating but the aircraft is not in flight or in motion.

IPC 8 full level

B64C 13/04 (2006.01); B64C 13/50 (2006.01)

CPC (source: EP GB)

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Citation (search report)

See references of WO 2021064379A2

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

DOCDB simple family (application)

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