JPH0299091U - - Google Patents
Info
- Publication number
- JPH0299091U JPH0299091U JP728889U JP728889U JPH0299091U JP H0299091 U JPH0299091 U JP H0299091U JP 728889 U JP728889 U JP 728889U JP 728889 U JP728889 U JP 728889U JP H0299091 U JPH0299091 U JP H0299091U
- Authority
- JP
- Japan
- Prior art keywords
- propeller
- fins
- reaction
- fin
- ship
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010523 cascade reaction Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims 2
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Description
第１図は本考案の一実施例としての舶用タンデ
ムリアクシヨンフインの部分側断面図であり、第
２図はプロペラの中心より先端に向かつてプロペ
ラ半径の７０％の半径をもつ円周上におけるプロ
ペラ翼の前縁と後方フインの後縁との間の長手方
向距離とプロペラの直径Ｄｐとの比／Ｄｐ（
横軸）とタンデムリアクシヨンフインの推進効率
η（縦軸）との関係を示すグラフであり、第３〜
５図は従来の舶用タンデムリアクシヨンフインを
示すもので、第３図は右舷側からみた船尾側面図
、第４図は第３図の―矢視断面図、第５図は
第３図の―矢視断面図である。
１……船体、２……スターンフレーム、３……
船底、４……プロペラ軸、５……プロペラ、６…
…ボス、７……後方フイン、８……前方フイン。
Fig. 1 is a partial side sectional view of a marine tandem reaction fin as an embodiment of the present invention, and Fig. 2 is a partial side sectional view of a marine tandem reaction fin as an embodiment of the present invention. The ratio of the longitudinal distance between the leading edge of the propeller blade and the trailing edge of the aft fin to the propeller diameter Dp/Dp(
This is a graph showing the relationship between the propulsion efficiency η (vertical axis) of the tandem reaction fin and the propulsion efficiency η (vertical axis) of the tandem reaction fin.
Figure 5 shows a conventional marine tandem reaction fin, Figure 3 is a stern side view seen from the starboard side, Figure 4 is a sectional view taken in the direction of the arrow in Figure 3, and Figure 5 is a cross-sectional view of Figure 3. It is an arrow sectional view. 1...hull, 2...stern frame, 3...
Ship bottom, 4... Propeller shaft, 5... Propeller, 6...
...Boss, 7... Back Finn, 8... Front Finn.
Claims (1)
方で同プロペラのプロペラ軸を囲んで設けられた
ボスから放射状に突出するリアクシヨンフインと
しての複数の後方フインをそなえるとともに、同
後方フインの前方で船体から上記プロペラ軸に対
して放射状に突出するリアクシヨンフインとして
の複数の前方フインをそなえ、上記プロペラの中
心より先端に向かつてプロペラ半径の７０％の半
径をもつ円周上におけるプロペラ翼の前縁と上記
後方フインの後縁との長手方向距離が、上記プロ
ペラの直径の１５〜３０％に設定されたことを特
徴とする、舶用タンデムリアクシヨンフイン。 A ship is equipped with a plurality of rear fins as reaction fins that protrude radially from a boss provided in front of a screw propeller at the stern surrounding the propeller shaft of the propeller, and in front of the rear fins, a plurality of rear fins are provided from the ship's hull. It has a plurality of front fins as reaction fins that protrude radially with respect to the propeller shaft, and the leading edge of the propeller blade on the circumference having a radius of 70% of the propeller radius from the center of the propeller toward the tip. A tandem reaction fin for ships, characterized in that a longitudinal distance between the rear fin and the trailing edge is set to 15 to 30% of the diameter of the propeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP728889U JPH0299091U (en) | 1989-01-25 | 1989-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP728889U JPH0299091U (en) | 1989-01-25 | 1989-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0299091U true JPH0299091U (en) | 1990-08-07 |
Family
ID=31212174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP728889U Pending JPH0299091U (en) | 1989-01-25 | 1989-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0299091U (en) |
-
1989
- 1989-01-25 JP JP728889U patent/JPH0299091U/ja active Pending
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