SHIP PROPULSION UNIT
SHIP PROPULSION UNIT
- Neue Suche nach: OKADA YUDAI
- Neue Suche nach: FUJII KEITA
- Neue Suche nach: HIMEI KOHEI
- Neue Suche nach: TAKEDA ATSUSHI
- Neue Suche nach: SUGIHARA AKIMITSU
- Neue Suche nach: OKADA YUDAI
- Neue Suche nach: FUJII KEITA
- Neue Suche nach: HIMEI KOHEI
- Neue Suche nach: TAKEDA ATSUSHI
- Neue Suche nach: SUGIHARA AKIMITSU
To provide a ship propulsion unit with a bent flow channel, capable of miniaturizing a propulsion unit and capable of suppressing thrust decrease by suppressing water backflow and vortex generation in a bent flow channel and by having such a configuration as to smoothen the water flow in the flow channel.SOLUTION: A ship propulsion unit 1 to obtain thrust of a ship S comprises: an impeller 6 provided on the upstream side of a roughly U-shaped flow channel 4, and sucking up water from an inlet port 9 by rotation to generate a water flow in the flow channel 4; an impeller shaft 5 extending in the prescribed direction in the flow channel 4 and rotationally driving the impeller 6; a shaft part 40 placed on the downstream side of the impeller 6 and rotatably supporting the impeller 5 in the flow channel 4; and multiple rib parts 50 provided in the flow channel 4 and supporting the shaft part 40 in the flow channel 4. The multiple ribs 50 guide the water flow to the downstream side of the flow channel 4 in the extending direction of the flow channel 4 while rectifying, where the shape of at lest one rib is different from the shapes of the other ribs.SELECTED DRAWING: Figure 1
【課題】曲がった流路を備える船舶用推進器において、推進器の小型化を図るとともに曲がった流路において水の逆流や渦の発生を抑えて、流路内の水の流れをスムーズにする構造を有することで、推力の低下を抑えることができる船舶用推進器を提供する。【解決手段】船舶Ｓの推進力を得る船舶用推進器１であって、略Ｕ字形状の流路４の上流側に設けられ、回転することで吸込口９から水を吸い込み流路４に水流を発生させるインペラ６と、流路４内において所定方向に延出され、インペラ６を回転駆動するためのインペラ軸５と、インペラ６の下流側に配置され、流路４内においてインペラ軸５を回転自在に支持する軸部４０と、流路４内に配置され、軸部４０を流路４内に支持する複数のリブ５０と、を備え、複数のリブ５０は、少なくとも一つのリブの形状が他のリブの形状と異なるとともに、水流を流路４の延出方向に沿って整流しながら流路４の下流側に案内する。【選択図】図１
Dokumentinformationen
SHIP PROPULSION UNIT
船舶用推進器
2023-03-24
Patent
Elektronische Ressource
Japanisch
| IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |