| 摘要 |
PURPOSE: A hub cavitation producer using a propeller-auxiliary pin is provided to reduce hub cavitation, to prevent corrosion of a steering wheel, and to prolong the life. CONSTITUTION: In forming a marine propeller(P), an auxiliary pin is installed to the hub(20) connection between vanes(10,10') of the propeller and spiral flow is formed small. Therefore, corrosion of a steering wheel is prevented. The rake of the auxiliary pin has a 15-degree difference in the rake between the rakes of the propeller vanes. The life of the steering wheel is prolonged by reducing occurrence of hub cavitation and the cost of repairing for maintenance of the propeller is reduced.
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