Propulsion unit for an aquatic vehicle comprising a hydraulic fluid conditioning module and a conditioning control method
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United States of America Patent
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Mar 12, 2019
Grant Date -
Oct 26, 2017
app pub date -
Apr 25, 2017
filing date -
Apr 25, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
This propulsion unit for an aquatic vehicle consists of a mobile casing mounted in a pivot connection in relation to a hull element of the aquatic vehicle, a drive shaft of a propeller, said shaft being mounted rotatably within the mobile casing by means of at least one bearing consisting of a closed space adapted to be filled with a hydraulic fluid, an electrical machine being adapted to drive the rotary drive shaft in relation to the mobile casing, where the propulsion unit further consists of a module for conditioning the hydraulic fluid contained in the closed space of the bearing. The propulsion unit also consists of a control device to control the conditioning, the control device consisting of a temperature sensor and capable of activating the conditioning of the hydraulic fluid contained in the closed space according to the temperature measured by the temperature sensor.
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