High-Efficiency Ship Propeller Based on Electric Direct Drive without Shaft Rim

Abstract

The ship propeller is a key component of a ship, a device for energy conversion, and a device for converting the energy emitted by the main engine into ship power. The most popular types of shaft-driven propellers derived from propeller propellers are currently on the market, including ducted propellers, pod propellers, and flat-rotating propellers. This type of propeller has many disadvantages of the shaft-driven propeller (system). These shortcomings have caused most of the existing small and medium-sized ships to have problems such as low transportation efficiency, high operation and maintenance costs, noise pollution, and lubricant leakage pollution. Therefore, the shaftless rim electric direct drive has gradually become an important development direction in the field of high-end marine propulsion equipment.