PROPULSOR (PROPELLER)

摘要

FIELD: transport.SUBSTANCE: invention relates to marine and aircraft propulsors with propeller-type working wheels. Propeller comprises hub and blades with leading and trailing sections. Blade trailing edge is furnished with elastic inserts composed of plates or threads arranged all over the baled edge. Insert length L makes 3-10 depths of the blade at the insert attachment point.EFFECT: decreased noise to 1-10 Hz at other sufficient operating performances.2 dwg