To reduce overall drag of a sailing body by eliminating the pressure near a stagnation point in a bow of a sailing body, and by obtaining a part or all of the thrust for a sailing body without increasing frictional drag.SOLUTION: An inflow opening part 11 is provided in a bow 2a of a sailing body 1, and the water W flowing-in from the inflow opening part 11 during forward sailing of the sailing body 1 is pressurized by a pressurizing mechanism or an acceleration mechanism 14 provided in a conduit 13 connected to the inflow opening part 11. This pressurized or accelerated water W is practically jetted backwards from an injection port 12b connected to the conduit 13, and provided away from the hull surface and in the hull front half part 2b. As a result, a part or all of the thrust necessary for sailing can be obtained.SELECTED DRAWING: Figure 1
【課題】航走体の船首部のよどみ点近傍の圧力を解消すると共に、船体表面における摩擦抵抗を増加することなく、航走体の推進力の一部又は全部を得て、これにより、航走体全体としての抵抗を低減する。【解決手段】航走体1の船首部2aに流入開口部11を設けて、航走体1の前進航走時において、流入開口部11から流入してくる水Wを、流入開口部11に連結する導水路13に設けた加圧又は加速機構14により加圧して、この加圧又は加速された水Wを、導水路13に連結し、かつ、船体表面から離間して船体前半部2bに設けた噴射口12bから、実質的に後方に噴射して、航走時に必要な推進力の一部又は全部を得る。【選択図】図1
THRUST GENERATION SYSTEM OF SAILING BODY, SAILING BODY, AND DRAG REDUCTION METHOD OF SAILING BODY
航走体の推進力発生システム、航走体及び航走体の抵抗低減方法
16.05.2023
Patent
Elektronische Ressource
Japanisch
SAILING BODY AND VISCOUS DRAG REDUCTION METHOD OF SAILING BODY
Europäisches Patentamt | 2023
|Europäisches Patentamt | 2017
|SAILING CONTROL METHOD FOR UNDERWATER SAILING BODY AND UNDERWATER SAILING BODY
Europäisches Patentamt | 2017
|SAILING BODY CONTROL DEVICE, SAILING BODY CONTROL METHOD AND PROGRAM FOR SAILING BODY CONTROL
Europäisches Patentamt | 2018
|SAILING BODY CONTROL SYSTEM AND SAILING BODY CONTROL METHOD
Europäisches Patentamt | 2020
|