JPS6148900U

JPS6148900U -

Info

Publication number: JPS6148900U
Application number: JP13433684U
Authority: JP
Priority date: 1984-09-04
Filing date: 1984-09-04
Publication date: 1986-04-02

Description

[Brief explanation of the drawing]

第１〜３図は本考案の一実施例としての船用リ
アクシヨンフインを示すもので、第１図はそのフ
インブレードを第６図に対応させて示す断面図、
第２図は第１図の−断面図、第３図は第１図
の−断面図であり、第４〜８図は従来の船用
リアクシヨンフインを示すもので、第４図は同リ
アクシヨンフインをそなえた船舶の船尾部側面図
、第５図は第４図の−矢視断面図、第６図は
第５図の−矢視断面図、第７図は第６図の
−断面図、第８図は第６図の−断面図であ
り、第９図はリアクシヨンフインをそなえた船舶
の主機出力と船速との関係について本考案による
場合と従来による場合とを比較して示すグラフで
ある。１…船体、２…スターンフレーム、３…フイン
ボス、５…プロペラ軸、８ａ〜８ｆ…フインブレ
ード。 1 to 3 show a reaction fin for a ship as an embodiment of the present invention, and FIG. 1 is a cross-sectional view of the fin blade corresponding to FIG.
Figure 2 is a cross-sectional view of Figure 1, Figure 3 is a cross-sectional view of Figure 1, and Figures 4 to 8 show a conventional reaction fin for ships. A side view of the stern part of a ship equipped with fins, FIG. 5 is a cross-sectional view taken along the - arrow in FIG. 4, FIG. 6 is a cross-sectional view taken along the - arrow in FIG. 5, and FIG. , Fig. 8 is a cross-sectional view of Fig. 6, and Fig. 9 shows a comparison between the present invention and the conventional case regarding the relationship between the main engine output and ship speed of a ship equipped with a reaction fin. It is a graph. 1... Hull, 2... Stern frame, 3... Fin boss, 5... Propeller shaft, 8a to 8f... Fin blade.

Claims

[Scope of utility model registration request]

Consisting of a plurality of fin blades that protrude radially from a fin boss formed at the stern end so as to surround the rear end of the propeller shaft, and generate a rotational flow in the opposite direction to the rotational direction of the propeller. A reaction fin for a ship, characterized in that the front edge of the fin blade is formed to be concavely curved forward from the center of the protruding length of the fin blade toward the root in order to extend the installation length of the fin blade. .