PROBLEM TO BE SOLVED: To provide a rudder for a craft, which comprises a crab fin increasing propulsion efficiency by contributing to elimination of a hub eddy.SOLUTION: A rudder for a craft includes: a rudder blade 102 that is arranged on a coaxial core behind a pusher propeller 101; a top end plate 103 and a bottom end plate 104, which are provided at top and bottom ends of the rudder blade 102 in the state of overhanging to both starboard and port sides, respectively; and a disk-like crab fin 107 that is provided at a front edge 102h of the rudder blade 102 in the state of overhanging forward.SELECTED DRAWING: Figure 1
【課題】ハブ渦の消去に貢献して推進効率が向上するクラブフィンを備えた船舶用舵を提供する。【解決手段】推進プロペラ101の後方の同軸心上に配設する舵ブレード102と、舵ブレード102の頂端部と底端部にそれぞれ左右両舷側に張り出して設けた頂端板103および底端板104と、舵ブレード102の前縁部102hに前方へ張り出して設けられた円盤状のクラブフィン107を備える。【選択図】図1
RUDDER FOR CRAFT
船舶用舵
12.05.2016
Patent
Elektronische Ressource
Japanisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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