A device for optional activation of a vertical-axis propeller (10) to be configured on the lower surface of a marine vessel, said device comprises a vertical-axis propeller; a sliding means (31, 32, 33, 34) associated with the lower surface of the marine vessel and sliding the vertical-axis propeller; at least one slider (51) that is associated with the vertical-axis propeller and is in sliding relation with the sliding means; and at least one driving means (71, 74, 75) for driving the vertical-axis propeller in upwards and downwards in the sliding direction.
RETRACTABLE VERTICAL-AXIS PROPELLER DEVICE
EINZIEHBARE VERTIKALACHSEN-PROPELLERVORRICHTUNG
DISPOSITIF À HÉLICE À AXE VERTICAL ESCAMOTABLE
2019-02-27
Patent
Electronic Resource
English
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
RETRACTABLE PROPELLER DEVICE FOR AIRCRAFT, SPACECRAFT OR WATERCRAFT
European Patent Office | 2018
|On efficiency of vertical-axis propeller
Engineering Index Backfile | 1960
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