초록 ▼

A device for protecting a propeller of a boat motor and for improving the efficiency and therefore the performance characteristics of the motor. The device includes a tubular shroud main body portion which includes a pair of half-sections pivotally secured to one another about a first pair of lower,

A device for protecting a propeller of a boat motor and for improving the efficiency and therefore the performance characteristics of the motor. The device includes a tubular shroud main body portion which includes a pair of half-sections pivotally secured to one another about a first pair of lower, axially aligned edges. Fastening devices are provided along a second pair of upper, axially aligned edges for clamping the half-sections about the propeller. Mounting plate assemblies are mounted on the main body portion half-sections adjacent the upper, axially aligned edges for resiliently gripping a pair of anti-cavitation plates projecting horizontally outwardly from the motor housing. The shroud main body portion is also provided with an elongated slot along the first pair of axially aligned edges for receiving a skeg projecting downwardly from the housing below the propeller. Forward and rearward grills are provided to prevent inflow of trash or other debris into the shroud. In addition, the shroud main body portion tapers axially, from forward end to rearward end to create a venturi effect as flow exits the shroud.

대표청구항 ▼

A device for protecting the propeller of a boat motor and for controlling flow in the area of the propeller wherein the boat motor includes a housing, a pair of anti-cavitation plates and a downwardly projecting skeg, the device comprising: an open-ended shroud including a main body portion having a

A device for protecting the propeller of a boat motor and for controlling flow in the area of the propeller wherein the boat motor includes a housing, a pair of anti-cavitation plates and a downwardly projecting skeg, the device comprising: an open-ended shroud including a main body portion having a pair of pivotally attached half sections adapted to enclose the propeller and further including forward and rearward ends, each end having an associated protective grill, and a pair of mounting plate assemblies located above the main body portion, each of said assemblies including upper and lower horizontally oriented plates adapted to resiliently grip one of said anti-cavitation plates.