To provide a stern addition, a stern shape, and a vessel with better energy conservation effect.SOLUTION: A stern addition 30 attached in front of a propeller attached to a stern of a vessel includes: a duct 31 forming a partial circular shape with a principal unit provided on a top unit of a propeller shaft 21 of the propeller; a plurality of pillars 32 attaching a duct 31 to the stern; and a fin 33 to be attached to at least to the stern provided on a bottom unit of the propeller shaft 21, and an angle of torsion of the fin 33 to the propeller shaft 21 is set to be greater than the angle of torsion of the pillars 32.SELECTED DRAWING: Figure 2
【課題】より省エネ効果の高い船尾用付加物、船尾形状、及び船舶を提供すること。【解決手段】船体の船尾に取り付けたプロペラの前方に取り付けられる船尾用付加物30であって、プロペラのプロペラ軸21の上部に主要部を設けた部分円形状を成すダクト31と、ダクト31を船尾に取り付ける複数の支柱32と、少なくともプロペラ軸21の下部に設けた船尾に取り付けるフィン33とを備え、プロペラ軸21に対するフィン33のねじり角を支柱32のねじり角よりも大きく設定した。【選択図】図2
STERN ADDITION, STERN SHAPE HAVING STERN ADDITION, AND VESSEL
船尾用付加物、船尾用付加物を有した船尾形状、及び船舶
2021-01-21
Patent
Electronic Resource
Japanese