An electric ducted fan for an aircraft is shown. A nacelle defines a duct that houses a propulsive fan having a fan diameter DF. An electric machine is configured to drive the fan, and has an electromagnetically active length LAand an electromagnetically active diameter DAdefining an aspect ratio (LA/DA) of from 0.8 to 2. A speed reduction device is located between the electric machine and the fan, and has a reduction ratio of at least 3:1. A ratio of the electromagnetically active diameter DAto the fan diameter DF(DA/DF) is from 0.3 to 0.5.
ELECTRIC DUCTED FAN
UMMANTELTER ELEKTRISCHER LÜFTER
SOUFFLANTE ÉLECTRIQUE À CONDUIT
2022-06-08
Patent
Elektronische Ressource
Englisch