PROPELLER NOZZLE

摘要

FIELD: marine propellers and propeller nozzles. ^ SUBSTANCE: proposed propeller nozzle has members made in form of triangles and trapeziums which are secured near propeller. Outer longitudinal edges of nozzle components are located over taper surfaces whose bases are directed towards propeller and are parallel relative to its axis. Propeller nozzle is made in form of ferrule inside which nozzle components are located symmetrically relative to one another and to propeller; their edges extend behind propeller beyond ferrule outlet contours. ^ EFFECT: enhanced efficiency of propeller and enhanced reliability of propeller nozzles. ^ 6 cl, 4 dwg