Support of propeller unit for a vessel
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United States of America Patent
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Mar 14, 2017
Grant Date -
May 17, 2012
app pub date -
May 12, 2010
filing date -
May 20, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to a rim driven propeller unit for a vessel, where a number of permanent magnets (4) are arranged round the propeller unit's rotatable rotor housing (1), comprising a number of propeller blades (3), and a number of permanent magnets round the propeller unit's external, stationary casing (2) housing the rotatable rotor housing, where the permanent magnets round parts of the rotatable rotor housing and the external, stationary casing's circumference are provided located above one another with like polarity, while other parts of the rotatable rotor housing and the external, stationary casing are provided located facing one another with opposite polarity, whereby the rotor housing and the stationary casing are repelled by and attracted to one another respectively, thereby being prevented from coming into contact with one another.
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