To provide a gate rudder that can reduce energy consumption during a ship voyage.SOLUTION: A gate rudder includes a pair of rudders comprising a port rudder and a starboard rudder, which are respectively disposed on both sides of a propeller at the stern of a ship. In a rear view, each rudder is formed of a first rudder part extending in the right-left direction and a second rudder part extending linearly in the vertical direction. A chord length of the second rudder part in the front-back direction is formed to be 40-100% of a diameter of the propeller. In a side view, the propeller is provided between 15-65% of the chord length from the leading edge of the second rudder part. In a side view, a rudder shaft for driving each rudder is provided at a position of 30-50% of the chord length from the leading edge of the second rudder part.SELECTED DRAWING: Figure 1
【課題】船の航海中のエネルギ消費を低減することができるゲートラダーを提供する。【解決手段】船尾のプロペラの両側に配置される左舵と右舵からなる一対の舵を備えるゲートラダーにおいて、背面視において、前記舵を左右方向に延在する第1舵部と上下方向に直線状に延在する第2舵部で形成し、前記第2舵部の前後方向の舵弦長さを前記プロペラの直径の40〜100%に形成し、側面視において、前記プロペラを第2舵部の前縁から舵弦長さの15〜65%の間に設け、側面視において、前記舵を駆動する舵軸を、前記第2舵部の前縁から舵弦長さの30〜50%の位置に設けた。【選択図】図1
GATE RUDDER PROVIDED WITH PORT RUDDER AND STARBOARD RUDDER DISPOSED ON BOTH SIDE OF PROPELLER OF SHIP
船のプロペラの両側に配置される左舵と右舵を備えるゲートラダー
2021-09-27
Patent
Electronic Resource
Japanese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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