PROBLEM TO BE SOLVED: To obtain a uniaxial two-rudder system capable of harbor maneuvering without a sacrificing fuel consumption amount during voyage.SOLUTION: In a horizontal section of a rudder, an outer rudder outline which is a non-facing side of two pieces of rudders in the rudder outline has a front edge unit e1 on an outer rudder outline in a shape of an arc or something similar to that, a rudder width from the front edge unit e1 is increased having the outer rudder outline in a shape projected in the outer direction toward the rear and reaching the maximum rudder width, the rudder width reaching the maximum rudder width is continued to a point P3 in the vicinity of a rudder rear end by varying the outer rudder outline gradually varied to a reverse curvature while gently being reduced toward the rear, the rudder width from the point P3 in the vicinity of the rudder rear end is continued to a rudder rear end P4 in a linear shape or something similar to that without being increased toward the rear, and the rudder width of the rudder rear end P4 has a finite width W.SELECTED DRAWING: Figure 5
【課題】航海中の燃料消費量が犠牲にならずに優れた港内操船ができる一軸二舵システムを得る。【解決手段】舵の水平断面において、舵輪郭のうち二枚の前記舵の非対面側である外舷舵輪郭は、外舷舵輪郭の前縁部e1が円弧状またはこれに類する形状であり、前縁部e1からの舵幅が後方に向かって外舷舵輪郭を外方向に凸となる形状で増加して最大舵幅に達し、最大舵幅に達した舵幅が後方に向かって緩やかに減少しながら外舷舵輪郭を徐々に逆の曲率へと変化させて舵後端付近の点P3まで続き、舵後端付近の点P3から舵幅が後方に向かって増大せずに外舷舵輪郭を直線状またはこれに類する形状で舵後端P4まで続き、舵後端P4の舵幅が有限幅Wを有する。【選択図】図5
UNIAXIAL TWO-RUDDER SYSTEM
一軸二舵システム
2018-05-24
Patent
Electronic Resource
Japanese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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