A VESSEL AND A METHOD IN A VESSEL WITH A HULL AND A PROPULSION UNIT

A VESSEL AND A METHOD IN A VESSEL WITH A HULL AND A PROPULSION UNIT

A vessel and a method in a vessel with a hull and a propulsion unit. The propulsion unit comprises a hollow strut rotatably attached to the hull of the vessel, a propeller shaft having an axial centre line and being positioned and supported in the lower portion of the strut with bearings, a propelle...

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1. Verfasser: Pellinen Petri
Format: Patent
Sprache:eng
Schlagworte:
MARINE PROPULSION OR STEERING
PERFORMING OPERATIONS
RELATED EQUIPMENT
SHIPS OR OTHER WATERBORNE VESSELS
TRANSPORTING
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creator Pellinen Petri
description A vessel and a method in a vessel with a hull and a propulsion unit. The propulsion unit comprises a hollow strut rotatably attached to the hull of the vessel, a propeller shaft having an axial centre line and being positioned and supported in the lower portion of the strut with bearings, a propeller being attached to at least one end of the propeller shaft protruding from the lower portion of the strut, and an electric motor driving the propeller shaft. An additional support arrangement is positioned at least in one end portion of the propeller shaft axially outwards from the bearings. The support arrangement comprises a first support surface formed in connection with the propeller shaft and a second support surface mating with the first support surface and being formed in connection with the lower portion of the strut. The second support surface is positioned at a predetermined distance from the first support surface so that a slot is formed between the first support surface and the second support surface facing towards each other. The being of the propeller shaft due to external loads acting on the propeller is restricted to a predetermined maximum value with the support surfaces.
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The propulsion unit comprises a hollow strut rotatably attached to the hull of the vessel, a propeller shaft having an axial centre line and being positioned and supported in the lower portion of the strut with bearings, a propeller being attached to at least one end of the propeller shaft protruding from the lower portion of the strut, and an electric motor driving the propeller shaft. An additional support arrangement is positioned at least in one end portion of the propeller shaft axially outwards from the bearings. The support arrangement comprises a first support surface formed in connection with the propeller shaft and a second support surface mating with the first support surface and being formed in connection with the lower portion of the strut. The second support surface is positioned at a predetermined distance from the first support surface so that a slot is formed between the first support surface and the second support surface facing towards each other. 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subjects MARINE PROPULSION OR STEERING
PERFORMING OPERATIONS
RELATED EQUIPMENT
SHIPS OR OTHER WATERBORNE VESSELS
TRANSPORTING
title A VESSEL AND A METHOD IN A VESSEL WITH A HULL AND A PROPULSION UNIT
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