Pre-swirl Fairing in Front of Propeller
A forward-mounted hydrodynamic energy-saving device. Composed of guide vanes
and a duct, it is installed in front of the propeller, with its axis offset above the propeller shaft.
Inside, it features four to five guide vanes that create pre-swirl flow. The duct surrounds the guide
vanes, improving the uniformity of the propeller's inflow, increasing propeller-hull efficiency, and
reducing rotational energy losses in the propeller's wake.
Fin on Propeller Hub Cap
A hydrodynamic energy saving device for marine propulsion systems that adds
small blades to the propeller cap equal to the number of propeller blades. This device eliminates
propeller wake vortexes and reduces hub vortex energy loss.
RUDDER BULB
A device that breaks up hub vortexes, restores pressure on the rudder bulb and
rudder surfaces, and reduces wake rotational energy loss.
HIGH-EFFICIENCY PROPELLER
A device customized to the shipowner's individual shipping needs, designed
using an integrated R&D platform, offers ultra-high propulsion efficiency and highly synergistic effects
with hydrodynamic energy-saving devices, resulting in significant energy savings and environmental
benefits.
