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1. (WO2017153610) DUCTED PROPELLER AND ROTARY WING DEVICE

Pub. No.:    WO/2017/153610    International Application No.:    PCT/EP2017/055850
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Mar 14 00:59:59 CET 2017
IPC: B64C 11/00
F02K 1/08
Applicants: COOPER COPTER GMBH
BEYER, Ranil
Inventors: BEYER, Ranil
Title: DUCTED PROPELLER AND ROTARY WING DEVICE
Abstract:
The invention relates to a ducted propeller (100) comprising a housing (102) with an inlet opening (104) and an outlet opening (106), at least one propeller (108) which is mounted in the housing (102) in a rotatable manner about a rotational axis (R), and a drive for the propeller (108). The drive is designed to rotate the propeller (108) about the rotational axis (R) such that an air flow is generated through the housing (102) from the inlet opening (104) to the outlet opening (106) by means of the propeller (108). According to the invention, the ducted propeller (100) further has control means (116, 118) for changing the free cross-sectional surface area of the outlet opening (106).