Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 22, 2014
Patent Application Number
13122167
Date Filed
September 10, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention discloses a hub fin device for improving the efficiency of a propeller. The hub fin device can include a propeller having a hub and a plurality of propeller blades that extend radially outward from the hub. Each of the plurality of propeller blades has a trailing edge region. A fin can also be included and located in the trailing edge region of at least one of the plurality of propeller blades. The fin extends radially outward from the hub and reduces or eliminates a hub vortex that is normally present during operation of the propeller.
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