JPH0613316B2 - Counter-rotating propeller propulsion device for ships - Google Patents
Counter-rotating propeller propulsion device for shipsInfo
- Publication number
- JPH0613316B2 JPH0613316B2 JP60109000A JP10900085A JPH0613316B2 JP H0613316 B2 JPH0613316 B2 JP H0613316B2 JP 60109000 A JP60109000 A JP 60109000A JP 10900085 A JP10900085 A JP 10900085A JP H0613316 B2 JPH0613316 B2 JP H0613316B2
- Authority
- JP
- Japan
- Prior art keywords
- propeller
- propulsion device
- ships
- counter
- rotating
- 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.)
- Expired - Lifetime
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、船舶用二重反転プロペラ推進装置に関する。The present invention relates to a contra-rotating propeller propulsion device for ships.
第３図及び第４図は従来の二重反転プロペラ付船舶の船
尾部側面図及び前後プロペラの回動により発生する渦の
軌跡図を示す。FIG. 3 and FIG. 4 show a side view of the stern part of a conventional ship with a counter-rotating propeller and a locus diagram of vortices generated by the rotation of the front and rear propellers.
第３図よりボッシング３はスターンフレーム１に固着さ
れ、その内部を回転可能に外軸６が貫装されている。外
軸６の後端には前方プロペラ８が固着され、内軸７は外
軸６内を回転可能に貫装され、該内軸７の後端には後方
プロペラ９が固着されている。なお外軸６、及び内軸７
の前端は互いに反転する機構（図示しない）を経由して
主機に連結される。As shown in FIG. 3, the boshing 3 is fixed to the stern frame 1, and the outer shaft 6 is rotatably mounted inside the stern frame 1. A front propeller 8 is fixed to the rear end of the outer shaft 6, an inner shaft 7 is rotatably mounted in the outer shaft 6, and a rear propeller 9 is fixed to the rear end of the inner shaft 7. The outer shaft 6 and the inner shaft 7
The front ends of are connected to the main engine via a mechanism (not shown) that reverses each other.
また、前方プロペラ８及び後方プロペラ９は互いに反対
方向に回転する場合には、同一方向のスラストが発生す
る様に構成されている。Further, the front propeller 8 and the rear propeller 9 are configured to generate thrust in the same direction when rotating in opposite directions.
以上、従来のものの構成において、図示省略の船内に設
置された主機によって、前方プロペラ８及び後方プロペ
ラ９が夫々、互いに反対方向に回転されて船体が航走す
る場合に、それらの相互作用によって、プロペラ８、９
の後流の回転流が減少して、推進効率が向上される訳で
あるが、従来の二重反転プロペラ推進装置においては、
後方プロペラ９の直径を前方プロペラ８の直径より小さ
く構成されているため、第４図に示しているとおり、前
方プロペラ８の翼先端より発生する渦SF2が、後方プロ
ペラ９の翼先端より発生する渦SF2と干渉して、それが
交叉するＰにおいて、渦が増大（キャビテーション発生
を助長）し後方プロペラ９の翼を損傷するなどの欠点を
有している。As described above, in the configuration of the conventional one, when the main propeller 8 and the rear propeller 9 are respectively rotated in the opposite directions by the main engine installed in the ship (not shown) and the hull sails, by their interaction, Propellers 8 and 9
The rotational flow of the wake is reduced and the propulsion efficiency is improved, but in the conventional counter-rotating propeller propulsion device,
Since the diameter of the rear propeller 9 is smaller than that of the front propeller 8, the vortex SF 2 generated from the tip of the front propeller 8 is generated from the tip of the rear propeller 9 as shown in FIG. There is a drawback that the vortex increases (promotes cavitation generation) at P where it intersects with the rotating vortex SF 2 and damages the blade of the rear propeller 9.
本装置は従来のものの欠点に鑑みて発明されたものであ
り、推進効率は従来の二重反転プロペラ推進装置並みに
保持しつつ、プロペラ翼先端渦の相互干渉を防止して、
後方プロペラの損傷を防止すると共に起振力増大の防止
を図るものである。This device was invented in view of the drawbacks of the conventional ones, and while maintaining the propulsion efficiency to be equal to that of the conventional counter-rotating propeller propulsion device, preventing mutual interference of propeller blade tip vortices,
This is intended to prevent damage to the rear propeller and prevent an increase in vibration force.
このため、本発明の船舶用二重反転プロペラ推進装置
は、同一軸線上の前後に配設され、互いに反対方向に回
転する装置において、後方プロペラの直径を前方プロペ
ラの直径より大きく設定されていることを特徴としてい
る。Therefore, the contra-rotating propeller propulsion device for a ship of the present invention is arranged in front and rear on the same axis line, and in a device rotating in opposite directions, the diameter of the rear propeller is set to be larger than the diameter of the front propeller. It is characterized by that.
本発明の装置によれば、上述の構成により、前方プロペ
ラ翼先端より発生する渦と、後方プロペラ翼先端より発
生する渦との干渉が防止されて、後方プロペラのキャビ
テーション増大及びプロペラ起振力増大が防止される。According to the device of the present invention, with the above-described configuration, the interference between the vortex generated from the front propeller blade tip and the vortex generated from the rear propeller blade tip is prevented, and the cavitation increase of the rear propeller and the propeller vibrating force increase. Is prevented.
以下、図面により本発明の一実施例について説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図及び第２図は、それぞれ、本発明の一実施例とし
ての船尾部側面図及び前後プロペラの回動により発生す
る渦の軌跡図を示す。FIG. 1 and FIG. 2 show a side view of the stern and a locus diagram of vortices generated by the rotation of the front and rear propellers, respectively, as one embodiment of the present invention.
第１図により、後方プロペラ５は、前方プロペラ４に比
し、その直径がより大に構成されている。前方プロペラ
の翼端渦の軌跡により通常後方プロペラ５は前方プロペ
ラ４の１〜1.15倍の範囲に決められる。According to FIG. 1, the rear propeller 5 has a larger diameter than the front propeller 4. The trailing propeller 5 normally determines the rearward propeller 5 in a range of 1 to 1.15 times that of the forward propeller 4.
以上の構成において、船内に設置された主機（図示せ
ず）により、前方プロペラ４及び後方プロペラ５が互い
に反対方向に回転されて船体が航走している場合、それ
らの相互作用により、プロペラ４、５の後流の回転流が
減少して推進効率が向上される。一方、前方プロペラ４
の翼先端より発生する渦SF1は、第２図に示すとおり後
方プロペラ５の翼先端より発生する渦SA2と交叉されな
いため、プロペラ性能に悪影響を及ぼす相互干渉が無
く、そのため後方プロペラ５の翼面上において、キャビ
テーション発生現象が増大されることがない。さらに、
プロペラ起振力が増大されることがない。In the above configuration, when the main propeller (not shown) installed in the ship rotates the front propeller 4 and the rear propeller 5 in opposite directions and the hull is traveling, the propeller 4 and the propeller 4 interact with each other due to their interaction. The rotating flow of the wake of 5 is reduced and the propulsion efficiency is improved. On the other hand, front propeller 4
As shown in FIG. 2, the vortex SF 1 generated from the wing tip of the rear propeller 5 does not intersect with the vortex SA 2 generated from the wing tip of the rear propeller 5, so that there is no mutual interference that adversely affects the propeller performance. The phenomenon of cavitation is not increased on the blade surface. further,
The propeller vibration force is not increased.
以上詳述したように本発明の船舶用二重反転プロペラ装
置によれば、後方プロペラのキャビテーション現象によ
る、翼面の損傷およびプロペラ起振力増大を防止できる
と共に、プロペラ後流の回転流は相殺されて、推進効率
を大幅に向上できる。As described in detail above, according to the contra-rotating propeller device for a ship of the present invention, it is possible to prevent damage to the blade surface and increase in propeller vibrating force due to the cavitation phenomenon of the rear propeller, and to cancel the rotational flow behind the propeller. Therefore, the propulsion efficiency can be significantly improved.
第１図は、本発明の一実施例の船尾部側面図を示し、第
２図は前後プロペラの回動により発生する渦の軌跡図を
示す。 第３図は従来のものの船尾部側面図を示し、第４図は前
後プロペラの回動により発生する渦の軌跡図を示す。 １……スターンフレーム、２……舵、３……ボッシン
グ、４・８……前方プロペラ、５・９……後方プロペ
ラ、６……外軸、７……内軸、SF1・SF2……前方プロペ
ラ８・４の翼先端より発生する渦、SA1・SA2……後方プ
ロペラ９・５の翼先端より発生する渦FIG. 1 shows a side view of the stern part of an embodiment of the present invention, and FIG. 2 shows a trajectory diagram of vortices generated by the rotation of the front and rear propellers. FIG. 3 shows a side view of the stern part of the conventional one, and FIG. 4 shows a trajectory diagram of vortices generated by the rotation of the front and rear propellers. 1 ...... stern frame, 2 ...... rudder, 3 ...... bossing, 4.8 ...... front propeller, 5.9 ...... rear propeller, 6 ...... outer shaft, 7 ...... the shaft, SF 1 - SF 2 ... … Vortex generated from blade tip of front propeller 8.4, SA 1・ SA 2・ ・ ・ Vortex generated from blade tip of rear propeller 9.5
Claims (1)
方向に回転する船舶用二重反転プロペラ推進装置におい
て、後方プロペラの直径を前方プロペラの直径より大き
くかつ１１５％より小さく構成したことを特徴とする船
舶用二重反転プロペラ推進装置。1. In a contra-rotating propeller propulsion device for ships, which are arranged in front and rear on the same axis and rotate in mutually opposite directions, a rear propeller has a diameter larger than a front propeller and smaller than 115%. A counter-rotating propeller propulsion device for ships characterized by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60109000A JPH0613316B2 (en) | 1985-05-21 | 1985-05-21 | Counter-rotating propeller propulsion device for ships |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60109000A JPH0613316B2 (en) | 1985-05-21 | 1985-05-21 | Counter-rotating propeller propulsion device for ships |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61268593A JPS61268593A (en) | 1986-11-28 |
| JPH0613316B2 true JPH0613316B2 (en) | 1994-02-23 |
Family
ID=14499028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60109000A Expired - Lifetime JPH0613316B2 (en) | 1985-05-21 | 1985-05-21 | Counter-rotating propeller propulsion device for ships |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0613316B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101313190B1 (en) * | 2011-11-03 | 2013-09-30 | 삼성중공업 주식회사 | A ship |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6455197U (en) * | 1987-10-01 | 1989-04-05 | ||
| JP3522390B2 (en) * | 1995-05-22 | 2004-04-26 | ヤマハマリン株式会社 | Contra-rotating propeller device |
| JP3557453B2 (en) * | 1995-10-18 | 2004-08-25 | ヤマハマリン株式会社 | Contra-rotating propeller device |
| JP5675264B2 (en) | 2010-10-19 | 2015-02-25 | 三菱重工業株式会社 | Ship and propulsion device |
| CN106081032A (en) * | 2016-08-04 | 2016-11-09 | 中国船舶科学研究中心上海分部 | A kind of co-axial contra rotating propeller being applicable to single tail ship type |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59230892A (en) * | 1983-06-10 | 1984-12-25 | Sanshin Ind Co Ltd | Slow-speed impeller for ship propulsion machine |
-
1985
- 1985-05-21 JP JP60109000A patent/JPH0613316B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101313190B1 (en) * | 2011-11-03 | 2013-09-30 | 삼성중공업 주식회사 | A ship |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61268593A (en) | 1986-11-28 |
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