JPS5839587A - Stern rectifier fin - Google Patents

Stern rectifier fin

Info

Publication number
JPS5839587A
JPS5839587A JP13722681A JP13722681A JPS5839587A JP S5839587 A JPS5839587 A JP S5839587A JP 13722681 A JP13722681 A JP 13722681A JP 13722681 A JP13722681 A JP 13722681A JP S5839587 A JPS5839587 A JP S5839587A
Authority
JP
Japan
Prior art keywords
fin
stern
angle
bow
changed
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
Application number
JP13722681A
Other languages
Japanese (ja)
Other versions
JPS6347678B2 (en
Inventor
Susumu Imoto
井本　進
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Engineering and Shipbuilding Co Ltd
Mitsui Zosen KK
Original Assignee
Mitsui Engineering and Shipbuilding Co Ltd
Mitsui Zosen KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Engineering and Shipbuilding Co Ltd, Mitsui Zosen KK filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Priority to JP13722681A priority Critical patent/JPS5839587A/en
Publication of JPS5839587A publication Critical patent/JPS5839587A/en
Publication of JPS6347678B2 publication Critical patent/JPS6347678B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • B63B39/061—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water by using trimflaps, i.e. flaps mounted on the rear of a boat, e.g. speed boat

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

PURPOSE:To make the wake distribution uniform and to improve the propulsion performance by fitting a stern rectifier fin so that its angle can be changed in the bow-to-stern lengthwise direction and broadside direction and by setting the fin in the optimum direction in accordance with the changes of the draft and trim. CONSTITUTION:A fin 2 is fitted so that its angle can be changed in relation to the bow-to-stern lengthwise direction by means of a toothed wheel 5 fitted to the fitting axle 3 of the stern fin 2 and a pinion connected to a motor 7. Furthermore, the fin 2 is set at an angle for the best rectification factor by changing its inclination in the broadside direction with a torque hinge 4 through an oil hydraulic pipe line 4b. Therefore, the fin can be set in the optimum direction in accordance with the changes of the draft and trim due to the cargo and ballast conditions of the hull.

Description

【発明の詳細な説明】 本発明は船の推進効率をよくするため船尾外板上に取付
ける整流フィンに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rectifying fin installed on the stern shell of a ship to improve its propulsion efficiency.

船の航行時の船尾付近の水流を整流してこれをプロペラ
にその推進効率を高めるように導く整流フィンを第１図
のように船尾にとりつけることが従来から行われ、これ
はそれなりに効果をあげている。同図ａは船尾付近側面
図、同すは図ａのＡＡ断面図で１０は船体、１１がプロ
ペラ、１２が整流フィンである。しかし従来の整流フィ
ンは固定されたものであり、一方船は積荷やバラストの
状態によってきっ水やトリムが変化し、このため従来の
ような固定した整流フィンではそれが常にプロペラに最
適に働きうるものとはならない。それで本発明では整流
フィンの方向を船首尾方向で、また舷方向で変えられる
ようにし、きっ水、トリム等の変化に応じてこれらを最
適の方向としてこれによりウェーク分布の均一化を計り
、推進性能の向上。Conventionally, a rectifier fin has been attached to the stern of the ship as shown in Figure 1, which rectifies the water flow near the stern when the ship is sailing and guides it to the propeller to increase its propulsion efficiency, and this has some effects. I'm giving. Figure a is a side view of the vicinity of the stern, and the same is a sectional view taken along line AA in figure a, where 10 is the hull, 11 is a propeller, and 12 is a rectifying fin. However, conventional straightening fins are fixed, and on the other hand, the water flow and trim of ships change depending on the cargo and ballast conditions, so conventional fixed straightening fins can always work optimally for the propeller. It doesn't become a thing. Therefore, in the present invention, the direction of the rectifier fins can be changed in the bow and stern directions and in the ship's side direction, and these directions are set as optimal according to changes in water flow, trim, etc., thereby uniformizing the wake distribution and promoting propulsion. Improved performance.

プロペラキャビテーションおよび船体振動の減少等が実
現しつるようにした。Propeller cavitation and hull vibration were reduced, making it more stable.

体外板、２はフィン部分、３は外板１を貫通する回動し
うる軸で船外に突出すその先端でトルクヒンジ４により
フィン２を支える。軸３はその一端に歯車５がありビニ
オン６とかみ合って軸３はモーター７により回動させら
れる。８は軸３のベアリング、　　９Ｉ／′ｉ水密シー
ルである。４は軸３の先端にこれに略直角に取付けられ
たトルクヒンジの固定側、４ａはその回動軸で、フィン
２はその腕２ａによって回動軸４ａに両者の方向が一致
するようにして固定される。４ｂはトルクヒンジの油圧
系である。In the body outer plate, 2 is a fin portion, 3 is a rotatable shaft passing through the outer plate 1, and the fin 2 is supported by a torque hinge 4 at its tip that projects outboard. The shaft 3 has a gear 5 at one end that meshes with a pinion 6, and the shaft 3 is rotated by a motor 7. 8 is a bearing for shaft 3, and 9I/'i is a watertight seal. 4 is the fixed side of a torque hinge attached to the tip of the shaft 3 at a substantially right angle thereto, 4a is its rotation axis, and the fin 2 is arranged so that its direction coincides with the rotation axis 4a by its arm 2a. Fixed. 4b is the hydraulic system of the torque hinge.

本発明は例えば以上のような構造をとることにより船の
積荷の状態によってフィン２を船首尾方向で、あるいは
舷方向でその傾きをかえ、最も整流効率のよい角度に設
定できる。船の各状態に対して最も効率的なフィンの角
度設定をどのようにすべきかは、主としてまず従来の固
定ツーインの場合と同様水槽試験により求められねばな
らぬが。For example, by adopting the above-described structure, the present invention can change the inclination of the fins 2 in the bow and stern direction or in the gunwale direction depending on the cargo condition of the ship, and set the angle to provide the most efficient flow rectification. The most efficient fin angle setting for each boat condition must be determined primarily through water tank tests, as in the case of conventional fixed two-in boats.

本発明の場合はそれに加えて船の就航後これを実験的に
最も実船に合ったもあに修正しうるの−も本発明の特徴
である。In addition, the present invention is characterized by the fact that after the ship is put into service, it can be experimentally modified to best suit the actual ship.

なお軸３．軸４ａの回動装置としては以上にのべたもの
に限らず、前者に対して、はリンク機構。Note that axis 3. The rotating device for the shaft 4a is not limited to those described above, but for the former, it is a link mechanism.

後者に対してはモーター内蔵等積々のものを適用しうる
。For the latter, a variety of devices such as a built-in motor can be applied.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａ、ｂはフィンの概念の説明図、第２図は本発明
の一実施例でフィンの一部水平断面図。 第３図は同じく船首尾方向に見た図面。 １　船体外板 ２　フィン ３　船首尾方向回動軸 ４　トルクヒンジ固定側 ４ａ　舷方向回動軸 ５　歯車 ６　ビこオン ７　モーター ８　軸３用ベアリング ９　同　水密シール １０　　船体 １１　　プロペラ １２　　　　整流フィン 出願人　　三井造船株式会社 代理人　河田茂夫FIGS. 1a and 1b are explanatory views of the concept of fins, and FIG. 2 is a partial horizontal sectional view of the fins in one embodiment of the present invention. Figure 3 is also a drawing seen from the bow and aft direction. 1 Hull outer plate 2 Fin 3 Fore and aft rotation axis 4 Torque hinge fixed side 4a Broadside rotation axis 5 Gear 6 Bikoon 7 Motor 8 Bearing for shaft 3 9 Watertight seal 10 Hull 11 Propeller 12 Rectifying fin applicant Mitsui Engineering & Shipbuilding Co., Ltd. Agent Shigeo Kawada

Claims (1)

【特許請求の範囲】[Claims] 船首尾方向および舷方向でそれぞれ角度をかえられるよ
うにした船尾整流フィン。A stern rectifying fin whose angle can be changed in both the bow and stern direction and the gunwale direction.
JP13722681A 1981-08-31 1981-08-31 Stern rectifier fin Granted JPS5839587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13722681A JPS5839587A (en) 1981-08-31 1981-08-31 Stern rectifier fin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13722681A JPS5839587A (en) 1981-08-31 1981-08-31 Stern rectifier fin

Publications (2)

Publication Number Publication Date
JPS5839587A true JPS5839587A (en) 1983-03-08
JPS6347678B2 JPS6347678B2 (en) 1988-09-22

Family

ID=15193721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13722681A Granted JPS5839587A (en) 1981-08-31 1981-08-31 Stern rectifier fin

Country Status (1)

Country Link
JP (1) JPS5839587A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6239394A (en) * 1985-08-16 1987-02-20 Ishikawajima Harima Heavy Ind Co Ltd Stern flow uniformizing moving fin device
JPS63199897U (en) * 1987-06-16 1988-12-22
JPH0211491A (en) * 1988-03-01 1990-01-16 Lips Bv Flowing guide body for ship
JP2014129064A (en) * 2012-12-28 2014-07-10 National Maritime Research Institute In-wave propulsion performance improvement device and craft
JP2014530785A (en) * 2012-03-16 2014-11-20 ビーコン フィンランド リミティド オサケユイチア Retractable propulsion vessel with thruster

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6239394A (en) * 1985-08-16 1987-02-20 Ishikawajima Harima Heavy Ind Co Ltd Stern flow uniformizing moving fin device
JPS63199897U (en) * 1987-06-16 1988-12-22
JPH0211491A (en) * 1988-03-01 1990-01-16 Lips Bv Flowing guide body for ship
JP2014530785A (en) * 2012-03-16 2014-11-20 ビーコン フィンランド リミティド オサケユイチア Retractable propulsion vessel with thruster
JP2014129064A (en) * 2012-12-28 2014-07-10 National Maritime Research Institute In-wave propulsion performance improvement device and craft

Also Published As

Publication number Publication date
JPS6347678B2 (en) 1988-09-22

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