JPH0396998U - - Google Patents
Info
- Publication number
- JPH0396998U JPH0396998U JP517090U JP517090U JPH0396998U JP H0396998 U JPH0396998 U JP H0396998U JP 517090 U JP517090 U JP 517090U JP 517090 U JP517090 U JP 517090U JP H0396998 U JPH0396998 U JP H0396998U
- Authority
- JP
- Japan
- Prior art keywords
- propeller
- stern
- ship
- reduction device
- force reduction
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
第１図は本考案の一実施例に係る舶用プロペラ
起振力低減装置をそなえた船舶の船尾部側面図、
第２図は第１図の−矢視断面矢視図、第３図
は上記本考案の実施例における作用の説明図であ
り、第４図は従来の舶用プロペラ起振力低減装置
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図は従来の装置におけ
る作用の説明図である。
１……スターンフレーム、２……船体、３……
シユーピース、４……舵、５……プロペラ、６…
…トンネルフイン、７……船尾ボツシング、８…
…プロペラ軸、９，１０，１１……フイン。
FIG. 1 is a side view of the stern of a ship equipped with a marine propeller excitation force reduction device according to an embodiment of the present invention;
Fig. 2 is a cross-sectional view taken along the - arrow in Fig. 1, Fig. 3 is an explanatory diagram of the operation of the embodiment of the present invention, and Fig. 4 is a diagram showing a conventional marine propeller vibration force reduction device. FIG. 5 is a side view of the stern portion of the ship, FIG. 5 is a sectional view taken along the - arrow in FIG. 4, and FIG. 6 is an explanatory diagram of the operation of the conventional device. 1... Stern frame, 2... Hull, 3...
Shew piece, 4... Rudder, 5... Propeller, 6...
...Tunnel fin, 7...Stern botsing, 8...
...propeller shaft, 9, 10, 11...fin.
Claims (1)
ペラ翼が上昇する舷側においてのみ、水の流れを
プロペラの回転方向と逆向きに変えられるように
、ひねりを施された複数のフインが上記プロペラ
の前方で船尾ボツシングから放射状に突出して設
けられるとともに、上記プロペラ翼が下降する舷
側においてのみ、横断面で円弧状に凹弯曲した下
面を有するトンネルフインが上記プロペラの上方
付近から前方へ向けて流線に沿うように船体表面
から突出して設けられたことを特徴とする、舶用
プロペラ起振力低減装置。 When the stern propeller rotates forward, a plurality of twisted fins are installed in front of the propeller so that the flow of water can be reversed to the direction of rotation of the propeller only on the side where the propeller blades rise. A tunnel fin is provided to protrude radially from the stern bossing, and has a lower surface concavely curved in a circular arc in cross section only on the side where the propeller blade descends, and extends along a streamline from near the top of the propeller toward the front. A marine propeller vibration force reduction device, characterized in that it is provided protruding from the surface of a ship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP517090U JPH0396998U (en) | 1990-01-24 | 1990-01-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP517090U JPH0396998U (en) | 1990-01-24 | 1990-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0396998U true JPH0396998U (en) | 1991-10-04 |
Family
ID=31508887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP517090U Pending JPH0396998U (en) | 1990-01-24 | 1990-01-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0396998U (en) |
-
1990
- 1990-01-24 JP JP517090U patent/JPH0396998U/ja active Pending
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