The vortex fin is called PBCF (Propeller Boss Cap Fins) in foreign countries.
The original technology originated from the ship owner's own energy-saving needs, with 2% to 5% energy-saving effect.
Propeller boss cap fins is attached with small fins on the boss cap,
The number of fins is same as that of the propeller blades.
Propeller boss cap fins mainly recovers the energy loss of propeller hub vortex in propeller down stream.
The geometry shape of Propeller boss cap fins is very simple,
And propeller boss cap fins can be installed behind the propeller easily as original boss cap,which rotates together with the propeller.
Propeller boss cap fins can save fuel consumption by 2%~5% as operating at the same speed.
Low investment, short recycling cost cycle.
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