초록 ▼

Disclosed herein is a marine propulsion device including a lower unit comprising a laterally extending anti-cavitation plate extending from the lower unit above a propeller and including a trailing portion, together with a trim tab extending downwardly from the trailing portion of the anti-cavitatio

Disclosed herein is a marine propulsion device including a lower unit comprising a laterally extending anti-cavitation plate extending from the lower unit above a propeller and including a trailing portion, together with a trim tab extending downwardly from the trailing portion of the anti-cavitation plate aft of the propeller, and a deflector located aft of the propeller and extending from the trailing portion of the anti-cavitation plate and rearwardly of the trim tab for pressurizing the water forwardly thereof and below the anti-cavitation plate and in the region of the trim tab during forward movement of the lower unit through the water.

대표청구항 ▼

A marine propulsion device including a propulsion unit comprising means adapted to be connected to a boat hull for mounting said propulsion unit from the boat hull for steering movement relative to the boat hull, and a lower unit including a gear box normally submerged in water, a propeller shaft ro

A marine propulsion device including a propulsion unit comprising means adapted to be connected to a boat hull for mounting said propulsion unit from the boat hull for steering movement relative to the boat hull, and a lower unit including a gear box normally submerged in water, a propeller shaft rotatably mounted by said lower unit gear box and carrying a propeller, a laterally extending anti-cavitation plate extending above said propeller and including a trailing portion, a trim tab extending downwardly from said trailing portion of said anti-cavitation plate aft of said propeller, and deflector means fixedly located aft of said propeller and solely extending downwardly from said trailing portion of said anti-cavitation plate and rearwardly of said trim tab for pressurizing the water forwardly thereof and below said anti-cavitation plate and in the region of said trim tab during forward movement of said gear box through the water, said deflector means having a lowermost surface above said propeller shaft.