PROBLEM TO BE SOLVED: To enable a decrease in fuel consumption without spoiling marine navigation safety.SOLUTION: A ship 10 which obtains propulsive power by driving a normally-used propeller 11 with a main engine 12 is provided with an additional propeller 20 and its driving means. The additional propeller 20 is arranged at the bottom or at a bottom rise part that is a position different from an arrangement position of the normally-used propeller 11. An output of the driving means of the additional propeller 20 is 25% or less of an output of the drive means of the main engine, so that a normally-used operation state that the normally-used propeller 11 is driven to obtain propulsive power and an operation state that the additional propeller 20 is driven to obtain propulsive power can be selected.
【課題】船舶の運航安全性を損なうことなく、燃料消費低減を図ることができるようにする。【解決手段】主機12により常用プロペラ11を駆動して推進力を得る船舶10に、追加プロペラ20及びその駆動手段が設けられ、前記追加プロペラ20は、前記常用プロペラ11の配置位置とは異なる位置であって、船底又は船底立ち上がり部に配置され、かつ前記追加プロペラ20の前記駆動手段の出力は、前記主機の駆動手段の出力の25%以下であり、常用プロペラ11を駆動して推進力を得る常用運転状態と、追加プロペラ20を駆動して推進力を得る運転状態とを選択可能である。【選択図】図3
MAIN PROPELLER, SHIP EQUIPPED WITH ADDITIONAL PROPELLER, AND ITS HYBRID NAVIGATION METHOD
主プロペラ及び追加プロペラを装備する船並びにそのハイブリッド運航方法
23.07.2015
Patent
Elektronische Ressource
Japanisch
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