Propulsion system for a vessel
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United States of America Patent
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Dec 27, 2016
Grant Date -
Dec 24, 2015
app pub date -
Jan 31, 2013
filing date -
Jan 31, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a propulsion system for a vessel such as a service vessel or supply vessel. The vessel has a hull with a midship portion and a stern portion. The propulsion system comprises two propulsion units fixedly mounted to the hull on opposite sides of a centre line of the hull at the stern portion, each of the propulsion units comprising a housing carrying a propeller externally of the housing. The housing further defines an interior volume in which a drive machinery is provided for driving the propeller via a propeller shaft, the interior volume being open to the interior of the hull. A vessel comprising the propulsion system and a method of retrofitting a hull with the propulsion system are also provided.
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