PROPULSORS
Number of patents in Portfolio can not be more than 2000
United States of America
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N/A
Issued Date -
Dec 5, 2024
app pub date -
Oct 15, 2021
filing date -
Oct 15, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A propulsor for a marine vessel is described. The propulsor includes a plurality of blades extending from a rotary housing. The blades are distributed around a blade pitch circle diameter of the rotary housing. A mounting plate rotatably mounts the rotary housing to a hull of the marine vessel. A slewing bearing includes a driven ring with a driven gear that is fixed to the rotary housing and a stationary ring fixed to the mounting plate. A diameter of the slewing bearing is at least 0.4 times the blade pitch circle diameter. The propulsor includes a main electric motor with a drive shaft mechanically connected to a driving gear. The driven gear of the slewing bearing and the driving gear define a single-stage transmission gear with a transmission ratio between 5:1 and 15:1.
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