JP2002193188A - Pod type propeller - Google Patents
Pod type propellerInfo
- Publication number
- JP2002193188A JP2002193188A JP2000394243A JP2000394243A JP2002193188A JP 2002193188 A JP2002193188 A JP 2002193188A JP 2000394243 A JP2000394243 A JP 2000394243A JP 2000394243 A JP2000394243 A JP 2000394243A JP 2002193188 A JP2002193188 A JP 2002193188A
- Authority
- JP
- Japan
- Prior art keywords
- strut
- propeller
- pod
- wake
- hull
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プロペラを備え、
該プロペラを駆動するモータを内蔵したポッドを、船尾
部船体の下部にストラットで支持するポッド型推進器に
係わる。[0001] The present invention relates to a propeller,
The present invention relates to a pod-type propulsion device in which a pod containing a motor for driving the propeller is supported by struts below a stern hull.
【０００２】[0002]
【従来の技術】例えば、図４に示すように、ポッド型推
進器１は、プロペラ２を備え、モータを内蔵したポッド
３を船尾部船体５の下部に、ストラット４によって吊持
して取付け、モータによりプロペラ２を駆動し、推進力
を得る推進器である。このポッド型推進器１は、船舶の
航行方向に対し、ストラット４の前方にプロペラ２を備
えたトラクタータイプのものと、ストラット４の後方に
プロペラ２を備えたプッシングタイプのものとがある。2. Description of the Related Art For example, as shown in FIG. 4, a pod-type propulsion device 1 is provided with a propeller 2 and a pod 3 having a built-in motor suspended from a lower part of a stern hull 5 by struts 4. This is a propulsion device that drives the propeller 2 by a motor to obtain a propulsion force. The pod-type propulsion device 1 is classified into a tractor type having a propeller 2 in front of a strut 4 and a pushing type having a propeller 2 behind a strut 4 with respect to the traveling direction of the ship.
【０００３】また、ポッド３を吊持するストラット４
は、図示していないが、船体内に設置された回転装置に
回転可能に支持されている。したがって、ストラット４
を回転装置により回転させることで、ポッド３が中心縦
軸回りに回転されるので、舵の役目も兼ねているし、１
８０度回転させて船舶を後進航行させることもできる。A strut 4 for suspending a pod 3
Are rotatably supported by a rotating device installed in the hull, not shown. Therefore, strut 4
The pod 3 is rotated around the central longitudinal axis by rotating the pod by a rotating device, so that it also serves as a rudder.
The ship can be turned backward by 80 degrees.
【０００４】なお、ストラット４は水中に半没するの
で、その平断面形状は左右対称の翼形であり、その中心
線を船舶の推進方向に向けて配置されているのが普通で
ある。このポッド型推進器は、電力駆動のため発電機を
必要とするが、ディーゼル機関による推進方式と比べ
て、機関室の配置に自由度が大きいことと、振動が極め
て小さいと云う特徴を有している。[0004] Since the strut 4 is submerged halfway into the water, its plane cross-section has a symmetrical wing shape, and its center line is generally arranged with the center line directed to the propulsion direction of the ship. This pod-type propulsion device requires a generator for electric power drive, but has the features of having a greater degree of freedom in the layout of the engine room and extremely low vibration compared to a propulsion system using a diesel engine. ing.
【０００５】しかし、トラクタータイプのものでは、プ
ロペラ２の後流がストラット４に当たるので、図５に示
すごとく、プロペラ２の回転と同じ方向に揚力Ｈが発生
することになる。この揚力Ｈは左右の舵効きをアンバラ
ンスにするし、直進するためには、絶えず当て舵を取る
必要があった。この当て舵を取ることは推進力を低下さ
せることにも繋がっている。However, in the case of the tractor type, since the wake of the propeller 2 hits the strut 4, a lift H is generated in the same direction as the rotation of the propeller 2, as shown in FIG. This lift H makes the left and right rudder effects unbalanced, and in order to go straight, it is necessary to constantly steer. Steering at this rudder also leads to reduced propulsion.
【０００６】従来、この問題の対策として、ポッド３の
下部にフィンを取り付け、ポッド３の上方でストラット
４に発生する揚力を、ポッド３の下部のフィンに発生さ
せる逆向きの揚力でキャンセリングさせる方法が知られ
ている。また、ポット型推進器１を２つ備えた２軸船に
おいては、プロペラ２の回転方向を左右逆向きとするこ
とでキャンセリングされる。Conventionally, as a countermeasure against this problem, a fin is attached to the lower part of the pod 3 and the lift generated on the strut 4 above the pod 3 is canceled by the reverse lift generated on the fin below the pod 3. Methods are known. In a two-axis ship equipped with two pot-type propulsors 1, the propeller 2 is canceled by setting the rotation direction of the propeller 2 to be opposite to the left and right.
【０００７】しかし、上記何れの場合も、推進力が低下
することは免れなかった。なお、プッシングタイプのも
のでは、プロペラ２の後流をストラット４が当たらない
ので、この問題は発生しない。However, in any of the above cases, the propulsion force was inevitably reduced. In the case of the pushing type, this problem does not occur because the strut 4 does not hit the wake of the propeller 2.
【０００８】[0008]
【発明が解決しようとする課題】本発明は、簡単な構成
でストラットに発生する揚力を小さく抑え、操舵性を良
好としたポッド型推進器を得ることを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a pod-type propulsion device which has a simple structure, suppresses the lift generated on struts, and improves steering characteristics.
【０００９】[0009]
【課題を解決するための手段】ポッド型推進器であっ
て、ポッドを支持するストラットのプロペラ後流が当た
る部分を、プロペラ後流の流れの向きに傾け、ストラッ
トの船体への取り付け側部分は、船舶の推進方向に向
け、ストラットのプロペラ後流が当たる部分とストラッ
トの船体への取り付け側部との間の部分は、上下の部分
の傾きにスムーズに切り変わる捻れた断面形状とした。Means for Solving the Problems In a pod-type propulsion device, a portion of the strut supporting the pod, which hits the wake of the propeller, is inclined in the direction of the flow of the wake of the propeller. The section between the strut's propeller wake and the side where the strut is attached to the hull in the direction of the ship's propulsion has a twisted cross-sectional shape that smoothly switches to the upper and lower parts.
【００１０】[0010]
【発明の実施の形態】以下図に沿って、本発明の実施の
形態について説明する。図１は本発明によるポッド型推
進器のストラット６を示している。本発明によるストラ
ット６は、プロペラ２の後流が当たる部分ｃと、船体５
への取り付け側部分ａと、この後流が当たる部分ｃと取
り付け側部分ａとを繋ぐ間の部分ｂとに区分されてい
る。そして、プロペラ後流が当たる部分ｃとしては、プ
ロペラ半径と同じ高さ位置に設定している。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a strut 6 of a pod-type thruster according to the invention. The strut 6 according to the present invention includes a portion c where the wake of the propeller 2 hits, and a hull 5
And a portion b between the mounting side portion a and a portion c to which the wake is applied. The portion c to which the wake of the propeller is applied is set at the same height position as the radius of the propeller.
【００１１】図２はストラット６のａ、ｂ、ｃ各部分の
断面形状を示している。図２（Ａ）はａ部分の断面形状
であり、図２（Ｃ）はｃ部分の断面形状であり、図２
（Ｂ）はｂ部分の中央高さ位置での断面形状である。ｂ
部分は中央において、図２（Ｂ）の形状となるが、ａ部
分と連なるところはａ部分の形状となっており、ｃ部分
と連なるところはｃ部分の形状となっていて、それぞれ
に中央断面形状からスムーズな捻れで連なっている。FIG. 2 shows the cross-sectional shape of each of the portions a, b, and c of the strut 6. 2A is a cross-sectional shape of a portion a, and FIG. 2C is a cross-sectional shape of a c portion.
(B) is a cross-sectional shape at the center height position of the b portion. b
The portion has the shape shown in FIG. 2 (B) at the center. The portion connected to the portion a has the shape of the portion a, and the portion connected to the portion c has the shape of the portion c. It is connected with a smooth twist from the shape.
【００１２】図３には、ストラット６にプロペラ２の後
流が当たる部分、つまり、ｃ部分のプロペラ後流中にお
ける傾きを示している。なお、図においてＸは船舶の推
進方向を示しており、Ｙはプロペラ２の回転方向を示す
矢印である。FIG. 3 shows the portion of the strut 6 where the wake of the propeller 2 hits, that is, the inclination of the portion c in the wake of the propeller. In the drawings, X indicates the direction in which the boat is propelled, and Y indicates an arrow indicating the direction in which the propeller 2 rotates.
【００１３】このように、ストラット６の、プロペラ２
の後流が当たる部分ｃを、プロペラ後流の流れの向きに
傾けたので、当該部分ｃはプロペラ後流の流れに向け
て、流れの中に在りストラット６に発生する揚力を小さ
く抑えることができる。ストラット６の船体への取り付
け側部分ａについては、プロペラ後流の影響を受けない
ので、船体５に対するストラット６の取合いを考慮し
て、船舶の推進方向Ｘに向けた配置とした。Thus, the propeller 2 of the strut 6
Is inclined in the direction of the flow of the wake of the propeller, so that the portion c is directed toward the flow of the wake of the propeller to reduce the lift generated in the strut 6 in the flow. it can. Since the portion a of the strut 6 to be attached to the hull is not affected by the wake of the propeller, the strut 6 is arranged in the propulsion direction X of the ship in consideration of the arrangement of the strut 6 with the hull 5.
【００１４】また、ストラット６のプロペラ２の後流が
当たる部分ｃとストラット６の船体５への取り付け側部
分ａとの間の部分ｂは、ａ、ｃ両者の傾きにスムーズに
切り変わる捻れた断面形状としている。つまり、ストラ
ット６は推進方向Ｘに向けた取り付け側部分ｂと、プロ
ペラ２の後流に向けて傾斜させた部分ｃとを、その間で
繋げる部分ｂで捻った形状になっている。A portion b between the portion c of the strut 6 where the propeller 2 hits the wake and the portion a of the strut 6 attached to the hull 5 is twisted so as to smoothly switch to the inclination of both a and c. It has a cross-sectional shape. That is, the strut 6 has a twisted shape at a portion b connecting the mounting side portion b in the propulsion direction X and the portion c inclined toward the wake of the propeller 2 therebetween.
【００１５】このように、ストラット６の、プロペラ２
の後流が当たる部分ｃを、プロペラ２の後流に向けて傾
斜させることにより、ストラット６に発生する揚力を小
さく抑えることができ、舵効きの左右のアンバランスを
解消し、当て舵量を減らすことができるので、１軸船に
おいてもポッド型推進器１を効果的に設備できる。ま
た、２軸船に採用しても効果的である。Thus, the propeller 2 of the strut 6
By inclining the portion c where the wake of the propeller 2 is directed toward the wake of the propeller 2, the lift generated on the strut 6 can be suppressed small, the imbalance between the left and right of the steering effect is eliminated, and the amount of steering is reduced. Since it is possible to reduce the number, the pod type propulsion device 1 can be effectively installed even in a single-axis ship. Also, it is effective to adopt it for a twin-screw ship.
【００１６】[0016]
【発明の効果】本発明は、ポッド型推進器において、ス
トラットのプロペラ後流が当たる部分をプロペラの後流
に向けて傾斜させるようにしたので、ストラットに発生
する揚力を小さく抑えることができ、舵効きの左右のア
ンバランスを解消し、当て舵量を減らすことができるよ
うになった。また、揚力の発生による推進力の低減を抑
えることができる。According to the present invention, in the pod type propulsion device, the portion of the strut where the wake of the propeller hits is inclined toward the wake of the propeller, so that the lift generated on the strut can be suppressed to a small value. The left and right imbalance of the steering effect has been eliminated, and the amount of steering has been reduced. In addition, it is possible to suppress a reduction in propulsion due to the generation of lift.
【図１】本発明によるポッド型推進器のストラットの区
分を示す図。FIG. 1 is a diagram showing strut sections of a pod-type propulsion device according to the present invention.
【図２】同上ストラットの各部分の断面図。FIG. 2 is a sectional view of each part of the strut.
【図３】同上プロペラ後流に対するストラットの傾きを
示す図。FIG. 3 is a view showing a tilt of a strut with respect to a propeller wake.
【図４】従来のポッド型推進器の概略図。FIG. 4 is a schematic view of a conventional pod type propulsion device.
【図５】同上ストラットとプロペラ後流の関係を示す
図。FIG. 5 is a diagram showing a relationship between the strut and a propeller wake.
１ ポッド型推進器 ２ プロペラ ３ ポッド ４ ストラット ５ 船尾部船体 ６ ストラット ａ ストラットの取り付け側部分 ｂ ストラット
の繋ぎ部分 ｃ ストラットのプロペラ後流が当たる部分 Ｈ 揚力 Ｘ 推進方向 Ｙ プロペラの回転方向DESCRIPTION OF SYMBOLS 1 Pod type propulsion device 2 Propeller 3 Pod 4 Strut 5 Stern hull 6 Strut a Strut attachment side b Strut joint c Strut strut propeller wake H Lift X Propulsion direction Y Propeller rotation direction
Claims (1)
流が当たる部分を、プロペラ後流の流れの向きに傾け、
ストラットの船体への取り付け側部分は、船舶の推進方
向に向け、ストラットのプロペラ後流が当たる部分とス
トラットの船体への取り付け側部分との間の部分は、上
下の部分の傾きにスムーズに切り変わる捻れた断面形状
としたことを特徴とするポッド型推進器。1. A strut supporting a pod, the portion of the strut where the propeller wake hits is tilted in the direction of the propeller wake flow,
The part of the strut that is attached to the hull faces the direction of the ship's propulsion, and the part between the strut's wake and the part that attaches the strut to the hull is smoothly cut to the upper and lower parts. Pod-type thruster characterized by its changing twisted cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000394243A JP4437252B2 (en) | 2000-12-26 | 2000-12-26 | Pod type propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000394243A JP4437252B2 (en) | 2000-12-26 | 2000-12-26 | Pod type propeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002193188A true JP2002193188A (en) | 2002-07-10 |
| JP4437252B2 JP4437252B2 (en) | 2010-03-24 |
Family
ID=18859899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000394243A Expired - Fee Related JP4437252B2 (en) | 2000-12-26 | 2000-12-26 | Pod type propeller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4437252B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101261867B1 (en) | 2011-06-24 | 2013-05-07 | 삼성중공업 주식회사 | Pod type propulsion device and ship with the same |
-
2000
- 2000-12-26 JP JP2000394243A patent/JP4437252B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101261867B1 (en) | 2011-06-24 | 2013-05-07 | 삼성중공업 주식회사 | Pod type propulsion device and ship with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4437252B2 (en) | 2010-03-24 |
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