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1. (WO2018083370) A PROPULSION UNIT

Pub. No.:    WO/2018/083370    International Application No.:    PCT/FI2016/050776
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Fri Nov 04 00:59:59 CET 2016
IPC: B63H 5/14
B63H 5/15
B63H 11/117
Applicants: ABB OY
Inventors: HANNUNIEMI, Juho
KOCK, Juho
Title: A PROPULSION UNIT
Abstract:
The propulsion unit comprises a support frame (20), a propeller (40) rotating around a shaft line (X-X), and a nozzle (60) surrounding the propeller and comprising an upstream end (61) and a downstream end (62). A support construction (50) is positioned downstream of the propeller for supporting the nozzle on an end portion (22A) of the support frame. The support construction comprises vanes (51-57) extending between the nozzle and the end portion of the support frame. The direction of each vane (51-57) is inclined in relation to a radial direction being defined by a radius extending perpendicularly from the shaft line to the nozzle.