JPS6238800U - - Google Patents
Info
- Publication number
- JPS6238800U JPS6238800U JP13239085U JP13239085U JPS6238800U JP S6238800 U JPS6238800 U JP S6238800U JP 13239085 U JP13239085 U JP 13239085U JP 13239085 U JP13239085 U JP 13239085U JP S6238800 U JPS6238800 U JP S6238800U
- Authority
- JP
- Japan
- Prior art keywords
- propeller
- upper duct
- ship
- propeller shaft
- contra
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sliding-Contact Bearings (AREA)
Description
図面のうち第1図〜第7図は本考案の実施例を
示すもので、第1図は船舶のプロペラ周辺の構造
を示す部分斜視図、第2図は要部側面図、第3図
は第2図―線断面図、第4図は第3図―
線断面図、第5図は第3図―線断面図、第6
図はプロペラへ流入する水流の流速分布を示す図
、第7図はコントラフイン付き上部ダクトを設け
た場合と設けない場合についての制動馬力と船速
との関係を示す線図、第8図は従来の略円筒状の
ダクトの底部の長さと所要推進馬力との関係を示
す線図、第9図はコントラフイン付き上部ダクト
を設けない場合の第6図相当図である。
1……プロペラ、C……プロペラ軸軸心、2…
…上部ダクト、3a,3b……コントラフイン、
4……船尾ボス部、5……スターンフレーム。
Among the drawings, Figs. 1 to 7 show an embodiment of the present invention, in which Fig. 1 is a partial perspective view showing the structure around the propeller of a ship, Fig. 2 is a side view of the main part, and Fig. 3 is a partial perspective view showing the structure around the propeller of a ship. Figure 2 - Line sectional view, Figure 4 is Figure 3 -
Line sectional view, Figure 5 is Figure 3 - Line sectional view, Figure 6
The figure shows the flow velocity distribution of water flowing into the propeller, Figure 7 is a diagram showing the relationship between braking horsepower and ship speed with and without an upper duct with contrafin installed, and Figure 8 is a diagram showing the relationship between braking horsepower and ship speed. FIG. 9, a diagram showing the relationship between the length of the bottom of a conventional substantially cylindrical duct and the required propulsion horsepower, is a diagram corresponding to FIG. 6 when the upper duct with a contrafin is not provided. 1...Propeller, C...Propeller shaft center, 2...
...Upper duct, 3a, 3b...Contrafin,
4... Stern boss section, 5... Stern frame.
Claims (1)
む水平面よりも上方に、プロペラ軸方向からの正
面視にて円弧状且つプロペラ軸軸心を含む面での
断面が翼形の上部ダクトを設け、この上部ダクト
の頂部の前部をスターンフレームに固着し、上記
上部ダクトの左右両端部を夫々コントラフインを
介して船尾ボス部に固着し、上記各コントラフイ
ンはプロペラへ流入する水流をプロペラ回転方向
と逆方向へ向けるような翼形断面に形成したこと
を特徴とする船舶のコントラフイン付き上部ダク
ト。 An upper duct is provided in front of the ship's propeller and above the horizontal plane containing the propeller shaft center, and is arc-shaped when viewed from the front from the propeller shaft direction and has an airfoil-shaped cross section in a plane containing the propeller shaft center. The front part of the top of the upper duct is fixed to the stern frame, and both left and right ends of the upper duct are fixed to the stern boss part through contra fins, and each of the contra fins directs the water flow into the propeller in the direction of propeller rotation. An upper duct with a contrafin for a ship, characterized in that it is formed with an airfoil cross section that points in opposite directions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985132390U JPH0450238Y2 (en) | 1985-08-28 | 1985-08-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985132390U JPH0450238Y2 (en) | 1985-08-28 | 1985-08-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6238800U true JPS6238800U (en) | 1987-03-07 |
JPH0450238Y2 JPH0450238Y2 (en) | 1992-11-26 |
Family
ID=31031730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1985132390U Expired JPH0450238Y2 (en) | 1985-08-28 | 1985-08-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0450238Y2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02104231A (en) * | 1988-10-13 | 1990-04-17 | Kaiyo Kogyo Kk | Method for culturing |
JP2008137462A (en) * | 2006-11-30 | 2008-06-19 | Ihi Marine United Inc | Duct device for ship |
JP2008308023A (en) * | 2007-06-14 | 2008-12-25 | Sumitomo Heavy Industries Marine & Engineering Co Ltd | Ship duct and ship |
WO2010073319A1 (en) * | 2008-12-24 | 2010-07-01 | 住友重機械マリンエンジニアリング株式会社 | Duct for ship and ship |
EP2492185A1 (en) * | 2011-02-25 | 2012-08-29 | Becker Marine Systems GmbH & Co. KG | Pre-nozzle for a drive system of a water vehicle for improving energy efficiency |
WO2016158725A1 (en) * | 2015-03-31 | 2016-10-06 | 三井造船株式会社 | Vessel |
WO2019027126A1 (en) * | 2017-08-04 | 2019-02-07 | 필드지 주식회사 | Duct-type ship energy reducing device |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4939269B2 (en) * | 2007-03-28 | 2012-05-23 | 三井造船株式会社 | Stern horizontal duct and ship |
JP5901512B2 (en) * | 2012-12-27 | 2016-04-13 | 三菱重工業株式会社 | Duct device and ship using the same |
JP6021678B2 (en) * | 2013-02-15 | 2016-11-09 | 三菱重工業株式会社 | Duct device and ship using the same |
JP6241905B2 (en) * | 2015-08-31 | 2017-12-06 | 国立研究開発法人 海上・港湾・航空技術研究所 | Stern shape with stern duct and ship |
JP2018020584A (en) * | 2016-08-01 | 2018-02-08 | 三井造船株式会社 | Marine vessel |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54115893A (en) * | 1978-02-27 | 1979-09-08 | Hitachi Zosen Corp | Ship |
JPS56166999U (en) * | 1980-05-14 | 1981-12-10 |
-
1985
- 1985-08-28 JP JP1985132390U patent/JPH0450238Y2/ja not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54115893A (en) * | 1978-02-27 | 1979-09-08 | Hitachi Zosen Corp | Ship |
JPS56166999U (en) * | 1980-05-14 | 1981-12-10 |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02104231A (en) * | 1988-10-13 | 1990-04-17 | Kaiyo Kogyo Kk | Method for culturing |
JP2008137462A (en) * | 2006-11-30 | 2008-06-19 | Ihi Marine United Inc | Duct device for ship |
JP2008308023A (en) * | 2007-06-14 | 2008-12-25 | Sumitomo Heavy Industries Marine & Engineering Co Ltd | Ship duct and ship |
WO2010073319A1 (en) * | 2008-12-24 | 2010-07-01 | 住友重機械マリンエンジニアリング株式会社 | Duct for ship and ship |
CN102186721A (en) * | 2008-12-24 | 2011-09-14 | 住友重机械海洋工程株式会社 | Duct for ship and ship \ |
KR101429416B1 (en) * | 2008-12-24 | 2014-08-25 | 스미도모쥬기가이 마린 엔지니어링 가부시키가이샤 | Duct for ship and ship |
EP2597030A3 (en) * | 2011-02-25 | 2013-08-07 | Becker Marine Systems GmbH & Co. KG | Pre-nozzle for a propulsion system of a water vehicle for improving energy efficiency |
EP2597029A3 (en) * | 2011-02-25 | 2013-07-10 | Becker Marine Systems GmbH & Co. KG | Pre-nozzle for a drive system of a water vehicle for improving energy efficiency |
CN102673760A (en) * | 2011-02-25 | 2012-09-19 | 贝克船舶***有限及两合公司 | Pre-nozzle for a drive system of a water vehicle for improving energy efficiency |
EP2492185A1 (en) * | 2011-02-25 | 2012-08-29 | Becker Marine Systems GmbH & Co. KG | Pre-nozzle for a drive system of a water vehicle for improving energy efficiency |
CN104648642A (en) * | 2011-02-25 | 2015-05-27 | 贝克船舶***有限及两合公司 | Pre-nozzle for a drive system of a watercraft to improve the energy efficiency |
CN104648641A (en) * | 2011-02-25 | 2015-05-27 | 贝克船舶***有限及两合公司 | Pre-nozzle for a drive system of a watercraft to improve the energy efficiency |
WO2016158725A1 (en) * | 2015-03-31 | 2016-10-06 | 三井造船株式会社 | Vessel |
JP2016193625A (en) * | 2015-03-31 | 2016-11-17 | 三井造船株式会社 | Marine vessel |
KR20180026363A (en) * | 2015-03-31 | 2018-03-12 | 미쯔이 죠센 가부시키가이샤 | Vessel |
WO2019027126A1 (en) * | 2017-08-04 | 2019-02-07 | 필드지 주식회사 | Duct-type ship energy reducing device |
Also Published As
Publication number | Publication date |
---|---|
JPH0450238Y2 (en) | 1992-11-26 |
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