PROBLEM TO BE SOLVED: To suppress an occurrence of a hub eddy in a propulsion device for a vessel and the vessel.SOLUTION: A propulsion device for a vessel includes a propeller shaft supported to be freely rotated on a back unit of a hull, and a propeller 21 connected to an end unit of the propeller shaft in the axial direction. The propeller includes: a boss 32 fixed to an end unit of the propeller shaft; a plurality of propeller blades 33 fixed with a prescribed space in between on an outer periphery unit of the boss in the circumferential direction; and a guide vane 41 provided along a rotational direction A of the propeller 21 to project from a negative pressure surfaces 33a of the propeller blades on a rotational center O side in the radial direction of the propeller.SELECTED DRAWING: Figure 2
【課題】船舶の推進装置及び船舶において、ハブ渦の発生を抑制する。【解決手段】船体の後部に回転自在に支持されるプロペラシャフトと、プロペラシャフトにおける軸方向の端部で連結されるプロペラ21とを備え、プロペラは、プロペラシャフトの端部に固定されるボス32と、ボスの外周部に周方向に所定間隔を空けて固定される複数のプロペラ翼33と、プロペラの径方向における回転中心O側でプロペラ翼の負圧面33aから突出するようにプロペラ21の回転方向Aに沿って設けられるガイドベーン41とを有する。【選択図】図2
PROPULSION DEVICE FOR VESSEL AND VESSEL
船舶の推進装置及び船舶
2018-09-20
Patent
Electronic Resource
Japanese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
VESSEL PROPULSION DEVICE AND VESSEL WITH VESSEL PROPULSION DEVICE
European Patent Office | 2022
|