JPH06305487A - Rudder - Google Patents
RudderInfo
- Publication number
- JPH06305487A JPH06305487A JP9344093A JP9344093A JPH06305487A JP H06305487 A JPH06305487 A JP H06305487A JP 9344093 A JP9344093 A JP 9344093A JP 9344093 A JP9344093 A JP 9344093A JP H06305487 A JPH06305487 A JP H06305487A
- Authority
- JP
- Japan
- Prior art keywords
- propeller
- rudder
- flow
- wake
- generated
- 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
Landscapes
- Lift Valve (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、船舶の舵に関する。FIELD OF THE INVENTION The present invention relates to the rudder of a ship.
【０００２】[0002]
【従来の技術】従来、図８に示すように、船舶を推進さ
せるためのプロペラ後流は、舵軸（Ｘ，Ｙ）での流入各
とその大きさひは異なることが知られている。船舶の推
進性能を向上させるために、プロペラ後流中に置かれた
舵板を利用してプロペラの回転流を整流し、またその反
動を利用して舵に推力を発生させ舵抵抗を減少させるコ
ントラ舵や反動舵などが開発されている。2. Description of the Related Art Conventionally, as shown in FIG. 8, it is known that the wake of a propeller for propelling a ship is different from each inflow at the rudder axle (X, Y). In order to improve the propulsive performance of the ship, the rudder plate placed in the wake of the propeller is used to rectify the rotating flow of the propeller, and the reaction is used to generate thrust in the rudder to reduce rudder resistance. Contra and rudder rudders have been developed.
【０００３】[0003]
【発明が解決しようとする課題】しかし、プロペラ後流
はプロペラ軸心側に近いほど流入角が大きく変化すると
ともに、プロペラ軸心位置を境に逆方向に変化するた
め、舵板の捩じり方向をプロペラ軸心位置で変化させる
必要がある。したがって、舵板のプロペラ軸心部での加
工がむずかしくなるという問題があった。However, in the wake of the propeller, the inflow angle changes greatly toward the propeller shaft center side and changes in the opposite direction at the propeller shaft center position. It is necessary to change the direction at the propeller shaft center position. Therefore, there has been a problem that it is difficult to process the central portion of the propeller shaft of the rudder blade.
【０００４】本発明は、上記問題点を解決して、逆方向
に捩じられた舵板のプロペラ軸心部の加工を容易にでき
るとともに、推進効率を向上することができる舵を提供
することを目的とする。The present invention solves the above problems and provides a rudder which can facilitate the machining of the propeller shaft center portion of the rudder plate twisted in the opposite direction and improve the propulsion efficiency. With the goal.
【０００５】[0005]
【課題を解決するための手段】上記問題点を解決するた
めに本発明の舵は、推進用プロペラの後流中に配置され
て、舵板のプロペラ軸心部を境として上部および下部を
プロペラ後流の流入方向に向くように左右に捩じった舵
において、舵板のプロペラ軸心部に紡錘体状のバルブを
設けたものである。In order to solve the above-mentioned problems, the rudder of the present invention is arranged in the wake of a propeller for propelling, and the upper and lower parts of the propeller are bounded by the propeller shaft center of the rudder blade. In a rudder that is twisted left and right so as to face the wake inflow direction, a spindle-shaped valve is provided at the center of the propeller shaft of the rudder blade.
【０００６】また上記構成に加えて、バルブの両舷側に
翼型断面の水平フィンを設け、これら両水平フィンを、
プロペラ後流の流入角に対応して前方への推力が得られ
るように傾斜角を変化させたものである。In addition to the above construction, horizontal fins having a blade-shaped cross section are provided on both port sides of the valve, and both horizontal fins are
The tilt angle is changed so that a thrust force in the forward direction can be obtained corresponding to the inflow angle of the wake of the propeller.
【０００７】さらに、水平フィンの先端部に、それぞれ
舵板に平行な翼型断面の垂直フィンを取り付けたもので
ある。Further, vertical fins each having a wing-shaped cross section parallel to the rudder blade are attached to the tips of the horizontal fins.
【０００８】[0008]
【作用】上記構成によれば、プロペラ軸心上にバルブを
設けたので、互いに反対方向へ捻る為の段差を吸収して
不連続面をなくすことができ、加工を容易に行うことが
できる。また、舵板の捩じりによる舵抵抗の減少および
推力の発生に加えて、バルブにより、プロペラ後流を外
側に排除して、プロペラへの水の流入速度をより遅くす
るとともに、プロペラ後流に発生する自由渦のうちプロ
ペラの翼付け根部分から発生する馬蹄形渦いわゆるハブ
渦の乱れを整流することができる。したがって、伴流の
利得および均一化、舵抗力の減少により、推進効率を向
上させるとともに、プロペラによる船体振動を軽減させ
ることができる。According to the above construction, since the valve is provided on the propeller shaft center, the step for twisting in the opposite directions can be absorbed to eliminate the discontinuous surface, and the machining can be easily performed. In addition to the reduction of rudder resistance and the generation of thrust due to the twisting of the rudder blade, the valve eliminates the propeller wake to the outside to slow down the water inflow speed to the propeller and reduce the propeller wake. It is possible to rectify the turbulence of a horseshoe-shaped vortex, a so-called hub vortex, which is generated from the root portion of the propeller blade, among the free vortices generated at Therefore, it is possible to improve the propulsion efficiency and reduce the hull vibration due to the propeller by the gain and uniformization of the wake and the reduction of the steering drag force.
【０００９】また、水平フィンは、周囲に形成される循
環流により、流れに垂直な方向に発生する揚力と流れ方
向に発生する抗力との合成力に前方への推力が含まれ、
この推力により舵抗力を減少させることができる。さら
に水平フィンは、プロペラ軸心から離れるに従って流入
角が変化するプロペラ後流中で、流入角に対応して傾斜
角（捩じり角）を設定しているので、前方への推力をよ
り効率的に取り出すことができる。したがって、推進効
率をより向上させることができる。Further, in the horizontal fin, the forward force is included in the combined force of the lift generated in the direction perpendicular to the flow and the drag generated in the flow direction due to the circulation flow formed around the horizontal fin.
This thrust can reduce the steering drag force. Furthermore, the horizontal fins set the inclination angle (torsion angle) corresponding to the inflow angle in the wake of the propeller where the inflow angle changes as it moves away from the propeller shaft center, so the forward thrust is more efficient. Can be taken out. Therefore, the propulsion efficiency can be further improved.
【００１０】さらに水平フィンの先端に取り付けた垂直
フィンは、周囲に形成される循環流により、流れに垂直
な方向に発生する揚力と流れ方向に発生する抗力との合
成力に前方への推力が含まれ、この推力により舵抗力を
より減少させことができるとともに、水平フィンの先端
部で発生拡散する自由渦を減少させることができて、誘
導抵抗を減少させ、プロペラ後流の整流効果が期待でき
る。Further, the vertical fins attached to the tips of the horizontal fins have a forward thrust due to the combined force of the lift force generated in the direction perpendicular to the flow and the drag force generated in the flow direction due to the circulation flow formed around the fins. Included, this thrust can reduce the rudder drag force more, and can reduce the free vortices generated and diffused at the tips of the horizontal fins, reducing the induced resistance and expecting the rectification effect of the propeller wake. it can.
【００１１】[0011]
【実施例】以下、本発明に係る舵の第１実施例を図１〜
図３に基づいて説明する。船尾部において、推進用のプ
ロペラ１の後方に、垂直方向の舵軸２を介して舵板３が
取り付けられ、この舵板３は、プロペラ軸心Ａを境に、
上部がプロペラ後流Ｖu に向かって流入角に近づくよう
に左舷側に捩じられるとともに膨らみ部が右舷側にある
非対称翼形断面(Aero Foil) の上部舵板３ｕと、下部が
プロペラ後流Ｖd に向かって流入角に近づくように右舷
側に捩じられるとともに膨らみ部が左舷側にある非対称
翼形断面の下部舵板３ｄとで構成されている。これによ
り、プロペラ後流Ｖu ，Ｖd の整流作用をよくし、舵板
３の周囲に発生する循環流により推力を発生させて舵抵
抗を減少し、推進効率を高めるように構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a rudder according to the present invention will be described with reference to FIGS.
It will be described with reference to FIG. In the stern part, a steering plate 3 is attached to the rear of the propeller 1 for propulsion via a rudder shaft 2 in the vertical direction. The rudder plate 3 has a propeller shaft center A as a boundary.
An upper rudder plate 3u asymmetrical airfoil cross section bulge together with the upper is twisted on the port side so as to approach the inflow angle towards the propeller slipstream V u is on the starboard side (Aero Foil), bottom flow after propeller bulge with twisted on the starboard side so as to approach the inflow angle toward the V d is constituted by the lower rudder blade 3d asymmetrical airfoil section on the port side. As a result, the rectifying action of the propeller wakes V u and V d is improved, the thrust is generated by the circulating flow generated around the rudder blade 3, the rudder resistance is reduced, and the propulsion efficiency is increased. .
【００１２】この舵板３のプロペラ軸心Ａ位置には、正
面視が円形で紡錘体状のバルブ４が前端をプロペラ１側
に突出して取り付けられており、このバルブ４により、
プロペラ１への水の流入速度を遅くするとともに、プロ
ペラ後流Ｖに発生する自由渦のうち、プロペラ翼付け根
部から発生する馬蹄形渦いわゆるハブ渦の乱れを整流し
ている。At the position of the propeller shaft center A of the rudder blade 3, a spindle-shaped valve 4 having a circular shape when viewed from the front is attached with its front end protruding toward the propeller 1 side.
The flow velocity of water into the propeller 1 is slowed, and of the free vortices generated in the wake V of the propeller, turbulence of a horseshoe-shaped vortex so-called hub vortex generated from the root of the propeller blade is rectified.
【００１３】したがって、プロペラ後流Ｖu ，Ｖd の流
入角に対応して大きく捩じられた上部舵板３ｕおよび下
部舵板３ｄのプロペラ軸心Ａ位置に、バルブ４を設けた
ので、互いに反対方向へ捻る為の段差を吸収して不連続
面をなくすことができ、加工を容易に行うことができ
る。また、舵板３の捩じりによる舵抵抗の減少および推
力の発生に加えて、バルブ４により、プロペラ軸心Ａ部
分のプロペラ後流ＶA を外側に排除して、プロペラ１へ
の水の流入速度をより遅くするとともに、プロペラ後流
ＶA に発生する自由渦のうちプロペラ１の翼付け根部分
から発生する馬蹄形渦いわゆるハブ渦の乱れを整流す
る。したがって、伴流の利得および均一化、舵抗力の減
少により、推進効率を向上させるとともに、プロペラに
よる船体振動を軽減させることができる。[0013] Thus, the propeller slipstream V u, the propeller axis A position of the upper rudder blade 3u twisted correspondingly larger inflow angle of V d and the lower rudder blade 3d, is provided with the valve 4, with each other The step for twisting in the opposite direction can be absorbed to eliminate the discontinuous surface, and the processing can be easily performed. Further, in addition to the reduction of the rudder resistance and the generation of the thrust due to the twist of the rudder blade 3, the valve 4 removes the propeller wake V A at the propeller shaft center A portion to the outside, and the water to the propeller 1 is removed. In addition to slowing the inflow velocity, it rectifies the turbulence of a horseshoe-shaped vortex so-called hub vortex generated from the blade root portion of the propeller 1 among free vortices generated in the propeller wake V A. Therefore, it is possible to improve the propulsion efficiency and reduce the hull vibration due to the propeller by the gain and uniformization of the wake and the reduction of the steering drag force.
【００１４】次に図４〜図７に基づいて第２実施例を説
明する。なお、従来と同一の部材は同一符号を付し、説
明は省略する。この第２実施例は、さらに効果を高める
ため、第１実施例のバルブ４の右舷側および左舷側にそ
れぞれ水平フィン５Ｒ，５Ｌを設けるとともに、両水平
フィン５Ｒ，５Ｌの先端部に整流用の垂直フィン６Ｒ，
６Ｌを取り付けたものである。Next, a second embodiment will be described with reference to FIGS. The same members as those of the related art are designated by the same reference numerals, and the description thereof will be omitted. In the second embodiment, in order to further enhance the effect, horizontal fins 5R and 5L are provided on the starboard side and the port side of the valve 4 of the first embodiment, respectively, and the tip ends of both horizontal fins 5R and 5L are used for straightening. Vertical fin 6R,
6L is attached.
【００１５】すなわち、水平フィン５Ｒ，５Ｌは、例え
ば非対称翼形断面(Aero Foil) でバルブ４の左右舷側に
それぞれ取り付けられており、プロペラ１の回転方向が
右回転（時計回り）である場合、右舷側の水平フィン５
Ｒは、図５に示すように、基端側で膨らみ部が下面側に
位置し、基端側で前方上方から後方下方に大きい流入角
で向かい（ＶRI）かつ右舷先端で小さい流入角で流入す
るプロペラ後流ＶROに対応して、水平フィン５Ｒ，５Ｌ
を捩じってプロペラ軸心Ａに対する傾斜角（捩じり角）
をβRI〜 βROの間で変化させている。また、左舷側の
水平フィン５Ｌは、図６に示すように、膨らみ部が上面
側になるように形成されるとともに、基端側で前方下方
から後方上方に大きい流入角で向かい（ＶLI）かつ左舷
先端で小さい流入角で流入するプロペラ後流ＶLOに対応
して、水平フィン５Ｒ，５Ｌを捩じってプロペラ軸心Ａ
に対する傾斜角（捩じり角）をβLI〜 βLOの間で変化
させている。That is, the horizontal fins 5R and 5L are attached to the port side of the valve 4 with an asymmetrical airfoil section (Aero Foil), respectively, and when the propeller 1 rotates clockwise (clockwise). Horizontal fin 5 on the starboard side
As for R, as shown in FIG. 5, the bulge portion is located on the lower surface side on the base end side, and on the base end side, a large inflow angle is directed from the upper front side to the lower rear side (V RI ) and a small inflow angle is formed on the starboard tip. Horizontal fins 5R, 5L corresponding to the incoming propeller wake V RO
Twist the angle of inclination with respect to the propeller axis A (twist angle)
Is varied between β RI and β RO . As shown in FIG. 6, the horizontal fins 5L on the port side are formed so that the bulging portions are on the upper surface side, and the base end faces a large inflow angle from the lower front to the upper rear (V LI ). In addition, the propeller shaft center A is twisted by twisting the horizontal fins 5R and 5L corresponding to the propeller wake V LO flowing at a small inflow angle at the port end.
The inclination angle (twisting angle) with respect to is varied between β LI and β LO .
【００１６】したがって、プロペラ後流ＶR ，ＶL が流
入角をもって水平フィン５Ｒ，５Ｌにそれぞれ流入した
場合、プロペラ後流ＶR ，ＶL により循環流が発生して
プロペラ後流ＶR ，ＶL に垂直な方向に揚力が生じると
ともに、プロペラ後流ＶR ，ＶL と同じ方向に抗力が生
じる。そして揚力と抗力との合成力中に前向きに作用す
る推力がそれぞれ生じて、舵抗力を減少させるように働
く。[0016] Thus, after the propeller flow V R, V L is the horizontal fins 5R with an inflow angle, if that has flowed respectively into 5L, after propeller flow V R, after circulating flow is generated by the V L propeller flow V R, V A lift force is generated in a direction perpendicular to L, and a drag force is generated in the same direction as the propeller wakes V R and V L. Then, thrust that acts in the forward direction is generated in the combined force of the lift force and the drag force, and acts to reduce the rudder drag force.
【００１７】また、垂直フィン６Ｒ，６Ｌは、膨らみ部
がそれぞれ外面側に形成され、前方から左右舷側後方外
方に広がるように流入角をもって流入するプロペラ後流
ＶRS，ＶLSにより、それぞれ時計方向または反時計方向
の循環流を発生させ、これにより生じる揚力と抗力との
合成力中に、前向きに作用する推力を生じさせて舵抗力
を減少させるように構成されている。また、水平フィン
５Ｒ，５Ｌの先端部で発生拡散する自由渦を減少させ、
誘導抵抗を減少させると共にプロペラ後流ＶRS，ＶLSを
整流し、舵全体の抗力を減少させることができる。Further, the vertical fins 6R, 6L have bulges formed on the outer surface side, respectively, and are propelled by the propeller wakes V RS , V LS flowing in at an inflow angle so as to spread from the front side to the port side rearward outward, respectively. It is configured to generate a circulating flow in a clockwise or counterclockwise direction, and to generate a thrust force acting in the forward direction in the combined force of the lift force and the drag force generated thereby to reduce the rudder drag force. Also, the free vortices generated and diffused at the tips of the horizontal fins 5R and 5L are reduced,
It is possible to reduce the induced resistance and rectify the propeller wakes V RS and V LS to reduce the drag force of the entire rudder.
【００１８】上記構成によれば、バルブ４の効果に加え
て、翼型断面の水平フィン５Ｒ，５Ｌは、周囲に形成さ
れる循環流により、流れに垂直な方向に発生する揚力と
流れ方向に発生する抗力との合成力に前方への推力が含
まれて、推力を発生させることができ、しかもこの水平
フィン５Ｒ，５Ｌは、複雑に変化するプロペラ後流
Ｖ R ，ＶL の流入角の変化に対応して、先端側と基端側
の間で各部位で異なる傾斜角βR ，βL が付けられて捩
じられているので、大部分の部位で前方への推力を有効
に取り出すことができる。したがって、この推力により
舵抗力が減少させことができる。そして伴流の利得およ
び均一化、舵抗力の減少により、推進効率を向上させる
とともに、プロペラ１による船体振動を軽減させること
ができる。According to the above construction, in addition to the effect of the valve 4,
The horizontal fins 5R and 5L of the airfoil section are formed around
The circulation force generated by the
The forward force is included in the combined force with the drag force generated in the flow direction.
Can generate thrust, and this horizontal
Fins 5R and 5L are complicatedly changing wakes of the propeller
V R, VLCorresponding to the change of the inflow angle of
Different tilt angle β in each part betweenR, ΒLIs attached and twisted
Since it is twisted, the forward thrust is effective in most parts
Can be taken out. Therefore, this thrust
The rudder drag can be reduced. And the gain of the wake and
To improve propulsion efficiency
In addition, reduce the hull vibration caused by the propeller 1.
You can
【００１９】さらに、垂直フィン６Ｒ，６Ｌにより、前
向きに作用する推力が生じて舵抗力を減少させるととも
に、水平フィン５Ｒ，５Ｌの先端部で発生拡散する自由
渦を減少させ、誘導抵抗を減少させると共にプロペラ後
流ＶRS，ＶLSを整流し、舵全体の抗力を減少させること
ができる。Further, the vertical fins 6R, 6L generate a thrust acting in a forward direction to reduce the rudder drag force, and reduce free vortices generated and diffused at the tips of the horizontal fins 5R, 5L to reduce the induced resistance. At the same time, the propeller wakes V RS and V LS can be rectified to reduce the drag force of the entire rudder.
【００２０】[0020]
【発明の効果】以上に述べたごとく本発明の第１の構成
によれば、プロペラ軸心上にバルブを設けたので、互い
に反対方向へ捻る為の段差を吸収して不連続面をなくす
ことができ、加工を容易に行うことができる。また、舵
板の捩じりによる舵の抵抗の減少および推力の発生に加
えて、バルブにより、プロペラ後流を外側に排除して、
プロペラへの水の流入速度をより遅くするとともに、プ
ロペラ後流に発生する自由渦のうちプロペラの翼付け根
部分から発生する馬蹄形渦いわゆるハブ渦の乱れを整流
する。したがって、伴流の利得および均一化、舵抗力の
減少により、推進効率を向上させるとともに、プロペラ
による船体振動を軽減させることができる。As described above, according to the first configuration of the present invention, since the valve is provided on the propeller shaft center, the step for twisting in opposite directions is absorbed and the discontinuous surface is eliminated. And can be easily processed. In addition to reducing the resistance of the rudder and the generation of thrust by twisting the rudder blade, the valve eliminates the propeller wake to the outside
The flow velocity of water into the propeller is made slower, and the turbulence of a horseshoe-shaped vortex, that is, a hub vortex generated from the root portion of the propeller blade among the free vortex generated in the wake of the propeller is rectified. Therefore, it is possible to improve the propulsion efficiency and reduce the hull vibration due to the propeller by the gain and uniformization of the wake and the reduction of the steering drag force.
【００２１】また、水平フィンは、周囲に形成される循
環流により、流れに垂直な方向に発生する揚力と流れ方
向に発生する抗力との合成力に前方への推力が含まれ、
この推力により舵抗力を減少させることができる。さら
に水平フィンは、プロペラ軸心から離れるに従って流入
角が変化するプロペラ後流中で、流入角に対応して傾斜
角（捩じり角）を設定しているので、前方への推力をよ
り効率的に取り出すことができる。したがって、推進効
率をより向上させることができる。Further, in the horizontal fin, the forward thrust is included in the combined force of the lift force generated in the direction perpendicular to the flow and the drag force generated in the flow direction due to the circulation flow formed around the horizontal fin,
This thrust can reduce the steering drag force. Furthermore, the horizontal fins set the inclination angle (torsion angle) corresponding to the inflow angle in the wake of the propeller where the inflow angle changes as it moves away from the propeller shaft center, so the forward thrust is more efficient. Can be taken out. Therefore, the propulsion efficiency can be further improved.
【００２２】水平フィンの先端に取り付けた垂直フィン
は、周囲に形成される循環流により、流れに垂直な方向
に発生する揚力と流れ方向に発生する抗力との合成力に
前方への推力が含まれ、この推力により舵抗力をより減
少させことができるとともに、水平フィンの先端部で発
生拡散する自由渦を減少させることができて、誘導抵抗
を減少させ、プロペラ後流の整流効果が期待できる。The vertical fins attached to the ends of the horizontal fins include forward thrust in the combined force of the lift force generated in the direction perpendicular to the flow and the drag force generated in the flow direction due to the circulating flow formed around the horizontal fins. With this thrust, the rudder drag force can be further reduced, and the free vortices generated and diffused at the tips of the horizontal fins can be reduced, the induced resistance can be reduced, and the rectifying effect of the propeller wake can be expected. .
【図１】本発明に係る舵の第１実施例を示す背面図であ
る。FIG. 1 is a rear view showing a first embodiment of a rudder according to the present invention.
【図２】同舵の側面図である。FIG. 2 is a side view of the rudder.
【図３】図２に示すＩ−Ｉ断面図である。3 is a cross-sectional view taken along the line I-I shown in FIG.
【図４】本発明に係る舵の第２実施例を示す背面図であ
る。FIG. 4 is a rear view showing a second embodiment of the rudder according to the present invention.
【図５】同舵の左側面図（右舷側）である。FIG. 5 is a left side view (starboard side) of the rudder.
【図６】同舵の右側面図（左舷側）である。FIG. 6 is a right side view (port side) of the rudder.
【図７】図５に示すII−II断面図である。7 is a sectional view taken along line II-II shown in FIG.
【図８】プロペラ後流の流入方向を示す説明図である。FIG. 8 is an explanatory diagram showing an inflow direction of a propeller wake.
１ プロペラ ２ 舵軸 ３ 舵板 ３ｕ 上部舵板 ３ｄ 下部舵板 ４ バルブ ５Ｒ 右舷水平フィン ５Ｌ 左舷水平フィン Ａ プロペラ軸心 Ｖ プロペラ後流 1 Propeller 2 Rudder Axis 3 Rudder Plate 3u Upper Rudder Plate 3d Lower Rudder Plate 4 Valve 5R Starboard Horizontal Fin 5L Portside Horizontal Fin A Propeller Axis V Propeller Wake
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年６月２５日[Submission date] June 25, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００２[Name of item to be corrected] 0002
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００２】[0002]
【従来の技術】従来、図８に示すように、船舶を推進さ
せるためのプロペラ後流は、舵軸（Ｙ，Ｚ）での流入角
とその大きさは異なることが知られている。船舶の推進
性能を向上させるために、プロペラ後流中に置かれた舵
板を利用してプロペラの回転流を整流し、またその反動
を利用して舵に推力を発生させ舵抵抗を減少させるコン
トラ舵や反動舵などが開発されている。2. Description of the Related Art Conventionally, as shown in FIG. 8, it has been known that a propeller wake for propelling a ship is different in inflow angle at the rudder shaft (Y, Z) and its size. In order to improve the propulsive performance of the ship, the rudder plate placed in the wake of the propeller is used to rectify the rotating flow of the propeller, and the reaction is used to generate thrust in the rudder to reduce rudder resistance. Contra and rudder rudders have been developed.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図６[Name of item to be corrected] Figure 6
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図６】 [Figure 6]
Claims (3)
舵板のプロペラ軸心部を境として上部および下部をプロ
ペラ後流の流入方向に向くように左右に捩じった舵にお
いて、舵板のプロペラ軸心部に紡錘体状のバルブを設け
たことを特徴とする舵。1. Arranged downstream of a propeller for propelling,
In a rudder in which the upper and lower parts of the rudder blade are twisted left and right so as to face the inflow direction of the propeller wake, a spindle-shaped valve is provided in the rudder blade propeller shaft central part. Rudder characterized by.
を設け、これら両水平フィンを、プロペラ後流の流入角
に対応して前方への推力が得られるように傾斜角を変化
させたことを特徴とする請求項１記載の舵。2. Horizontal fins having an airfoil cross section are provided on both sides of the valve, and the inclination angles of these horizontal fins are changed so that a forward thrust force can be obtained corresponding to the inflow angle of the propeller wake. The rudder according to claim 1, wherein:
平行な翼型断面の垂直フィンを取り付けたことを特徴と
する請求項２記載の舵。3. The rudder according to claim 2, wherein vertical fins each having a wing-shaped cross section parallel to the rudder blade are attached to the tips of the horizontal fins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9344093A JPH06305487A (en) | 1993-04-21 | 1993-04-21 | Rudder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9344093A JPH06305487A (en) | 1993-04-21 | 1993-04-21 | Rudder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06305487A true JPH06305487A (en) | 1994-11-01 |
Family
ID=14082392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9344093A Pending JPH06305487A (en) | 1993-04-21 | 1993-04-21 | Rudder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06305487A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090182A1 (en) * | 2001-05-09 | 2002-11-14 | Japan Hamworthy & Co., Ltd. | Twin rudder system for large ship |
| WO2006112787A1 (en) * | 2005-04-20 | 2006-10-26 | Rolls-Royce Aktiebolag | A propulsion and steering arrangement for a ship |
| JP2008120370A (en) * | 2006-11-13 | 2008-05-29 | Becker Marine Systems Gmbh & Co Kg | Rudder for ships |
| EP2060484A1 (en) | 2007-11-13 | 2009-05-20 | becker marine systems GmbH & Co. KG | Rudder for ships |
| JP2009120190A (en) * | 2007-11-13 | 2009-06-04 | Becker Marine Systems Gmbh & Co Kg | Rudder assembly for ship with high speed with cavitation reducing twisted rudder, in particular, whole balancing rudder |
| KR100901391B1 (en) * | 2009-03-04 | 2009-06-05 | 대우조선해양 주식회사 | Ship's rudder comprising asymmetric streamlined profile of leading edge and rudder node |
| EP2110311A2 (en) | 2008-04-18 | 2009-10-21 | Mitsubishi Heavy Industries, Ltd. | Finned rudder |
| JP2010042796A (en) * | 2008-08-13 | 2010-02-25 | Becker Marine Systems Gmbh & Co Kg | Device for arranging rudder for high-speed ship composed of cavitation reducing, twisted, in particular, balanced rudder |
| JP2013256215A (en) * | 2012-06-13 | 2013-12-26 | Sumitomo Heavy Industries Marine & Engineering Co Ltd | Method of manufacturing rudder with rudder bulb |
| JP2017165376A (en) * | 2016-03-18 | 2017-09-21 | ジャパンマリンユナイテッド株式会社 | Rudder structure and manufacturing method of ship |
| JP2017171151A (en) * | 2016-03-24 | 2017-09-28 | ジャパンマリンユナイテッド株式会社 | Ship rudder |
| CN114954872A (en) * | 2022-06-29 | 2022-08-30 | 中国人民解放军海军工程大学 | Twisted rudder for noise reduction and efficiency enhancement of underwater vehicle and design method thereof |
-
1993
- 1993-04-21 JP JP9344093A patent/JPH06305487A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6886485B2 (en) | 2001-05-09 | 2005-05-03 | Japan Hamworthy & Co., Ltd. | Twin-rudder system for large ship |
| WO2002090182A1 (en) * | 2001-05-09 | 2002-11-14 | Japan Hamworthy & Co., Ltd. | Twin rudder system for large ship |
| US7661379B2 (en) | 2005-04-20 | 2010-02-16 | Rolls-Royce Aktiebolag | Propulsion and steering arrangement for a ship |
| WO2006112787A1 (en) * | 2005-04-20 | 2006-10-26 | Rolls-Royce Aktiebolag | A propulsion and steering arrangement for a ship |
| KR101326621B1 (en) * | 2005-04-20 | 2013-11-08 | 롤스 로이스 아베 | A propulsion and steering arrangement for a ship |
| JP2008120370A (en) * | 2006-11-13 | 2008-05-29 | Becker Marine Systems Gmbh & Co Kg | Rudder for ships |
| JP4571658B2 (en) * | 2006-11-13 | 2010-10-27 | ベッカー・マリン・システムズ・ゲゼルシャフト・ミト・べシュレンクテル・ハフツング・ウント・コンパニー・コマンディトゲゼルシャフト | Ship rudder |
| KR101466991B1 (en) * | 2007-11-13 | 2014-12-01 | 베커 마린 시스템즈 게엠베하 운트 콤파니 카게 | Rudder arrangement for ships with higher speeds with a cavitation reducing twisted rudder, in particular with a full-balanced rudder |
| JP2009120190A (en) * | 2007-11-13 | 2009-06-04 | Becker Marine Systems Gmbh & Co Kg | Rudder assembly for ship with high speed with cavitation reducing twisted rudder, in particular, whole balancing rudder |
| JP2009120191A (en) * | 2007-11-13 | 2009-06-04 | Becker Marine Systems Gmbh & Co Kg | Rudder for high-speed ship consisting of cavitation reducing torsion, in particular, balancing rudder |
| EP2060484A1 (en) | 2007-11-13 | 2009-05-20 | becker marine systems GmbH & Co. KG | Rudder for ships |
| US7802531B2 (en) | 2007-11-13 | 2010-09-28 | Becker Marine Systems Gmbh & Co. Kg | Rudder for ships |
| JP2009120170A (en) * | 2007-11-13 | 2009-06-04 | Becker Marine Systems Gmbh & Co Kg | Rudder for ships |
| EP2110311A2 (en) | 2008-04-18 | 2009-10-21 | Mitsubishi Heavy Industries, Ltd. | Finned rudder |
| JP2009255835A (en) * | 2008-04-18 | 2009-11-05 | Mitsubishi Heavy Ind Ltd | Finned rudder |
| EP2110311A3 (en) * | 2008-04-18 | 2011-10-05 | Mitsubishi Heavy Industries, Ltd. | Finned rudder |
| JP2010042796A (en) * | 2008-08-13 | 2010-02-25 | Becker Marine Systems Gmbh & Co Kg | Device for arranging rudder for high-speed ship composed of cavitation reducing, twisted, in particular, balanced rudder |
| KR100901391B1 (en) * | 2009-03-04 | 2009-06-05 | 대우조선해양 주식회사 | Ship's rudder comprising asymmetric streamlined profile of leading edge and rudder node |
| JP2013256215A (en) * | 2012-06-13 | 2013-12-26 | Sumitomo Heavy Industries Marine & Engineering Co Ltd | Method of manufacturing rudder with rudder bulb |
| JP2017165376A (en) * | 2016-03-18 | 2017-09-21 | ジャパンマリンユナイテッド株式会社 | Rudder structure and manufacturing method of ship |
| CN107200115A (en) * | 2016-03-18 | 2017-09-26 | 日本日联海洋株式会社 | Rudder constructs the preparation method with ship |
| JP2017171151A (en) * | 2016-03-24 | 2017-09-28 | ジャパンマリンユナイテッド株式会社 | Ship rudder |
| CN114954872A (en) * | 2022-06-29 | 2022-08-30 | 中国人民解放军海军工程大学 | Twisted rudder for noise reduction and efficiency enhancement of underwater vehicle and design method thereof |
| CN114954872B (en) * | 2022-06-29 | 2024-06-11 | 中国人民解放军海军工程大学 | Twisted rudder for noise reduction and synergy of underwater vehicle and design method thereof |
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