Search International and National Patent Collections

1. (WO2017192086) DRIVING DEVICE FOR A WATERCRAFT

Pub. No.:    WO/2017/192086    International Application No.:    PCT/SE2017/050413
Publication Date: Fri Nov 10 00:59:59 CET 2017 International Filing Date: Fri Apr 28 01:59:59 CEST 2017
IPC: B63H 5/10
B63H 11/08
Applicants: MARINE JET POWER AB
Inventors: PAVLOV, Stanislav
Title: DRIVING DEVICE FOR A WATERCRAFT
Abstract:
Driving device for a watercraft, which device comprises a water flow channel (10) which is connected to the watercraft, preferably to the bottom thereof, and which has an inlet (11) and an outlet (12), a drive shaft (13, 14) which extends into said channel (10), a bearing shaft (15) coaxially arranged with the drive shaft part (14) in said channel, a first rotating impeller (21) connected to the drive shaft (13) for rotation in said channel (10) for the movement of water in either direction between the inlet (11) and the outlet (12), a second impeller (22) which is contra-rotating to the first impeller (21) and connected to the bearing shaft (15) for rotation in said channel (10) for the movement of water in said direction between the inlet (11) and the outlet (12), and that the drive shaft (13, 14) and the bearing shaft (15) are connected to each other via a planetary-like gearing (30), wherein one of said impellers (21, 22) is formed with an impeller casing (31) which is provided with an outer surface (322) and inside which, said gearing (30) is situated.