WO2017183150A1 - Ship propulsion device - Google Patents
Ship propulsion device Download PDFInfo
- Publication number
- WO2017183150A1 WO2017183150A1 PCT/JP2016/062615 JP2016062615W WO2017183150A1 WO 2017183150 A1 WO2017183150 A1 WO 2017183150A1 JP 2016062615 W JP2016062615 W JP 2016062615W WO 2017183150 A1 WO2017183150 A1 WO 2017183150A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- propeller
- rudder
- ship
- diameter
- appendage
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/06—Steering by rudders
- B63H25/38—Rudders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/28—Other means for improving propeller efficiency
Definitions
- the present invention relates to a ship propulsion device.
- Patent Document 1 describes a ship propulsion performance improving device including a valve and a pair of left and right fins at a position on the propeller axis of the front edge of a rudder disposed behind the propeller.
- Patent Document 2 describes a twin-skeg ship with two shafts and two rudder provided with a valve and a fin on the rudder behind the left and right propellers.
- valves and fins can be arranged behind the propeller with the rudder as a support, regardless of the application or type, as long as the vessel has a rudder installed behind the propeller.
- a similar addition can be installed on the rudder of a ship such as an icebreaker or an ice-resistant ship.
- the present invention intends to provide a marine vessel propulsion device that can improve propeller propulsion efficiency in a marine vessel in which a propeller and a rudder are spaced apart.
- an appendage for reducing a hub vortex of the propeller is installed at a height position of the propeller at a front edge of the rudder disposed behind the propeller, and the front edge of the rudder and the blade center of the propeller are installed.
- the distance between the propeller and the propeller is 30% or more and 60% or less, and the distance between the front end of the appendage and the rear end of the propeller is 50 mm or more and 300 mm or less.
- the appendage has a circular cross section in a direction orthogonal to the central axis extending in the hull direction, and a spindle-shaped shape whose diameter decreases toward the rear end side at the rear part. It is preferable to have.
- the additional material has a maximum diameter of 10% to 40% with respect to the propeller diameter, and a length in a hull direction of 40% to 70% with respect to the propeller diameter. % Or less is preferable.
- the ship propulsion device of the present invention can be applied to an icebreaker or an ice-resistant ship.
- the marine vessel propulsion apparatus of the present invention it is possible to achieve an excellent effect that the propeller propulsion efficiency in a marine vessel in which the propeller and the rudder are spaced apart can be improved.
- FIG. 1 shows an example of a form of a ship propulsion device according to the embodiment of the present invention.
- a propeller 2 is installed at the stern of a ship 1 that is an icebreaker or an ice-resistant ship, and a rudder 3 is disposed behind the propeller 2.
- a rudder 3 is disposed behind the propeller 2.
- an appendage 4 for reducing a hub vortex caused by the propeller 2 is installed at a height position of the propeller 2.
- the propeller 2 and the rudder 3 are arranged apart from each other as compared with a general ship.
- the appendage 4 for reducing the hub vortex generated in the propeller 2 is arranged so as to largely protrude from the front edge of the rudder 3 toward the propeller 2.
- the appendage 4 is an object having a circular cross section in a direction orthogonal to the central axis extending in the hull direction, and the rear portion is configured in a spindle shape whose diameter decreases toward the rear end side. ing.
- the position of the central axis is set to coincide with the axis of the propeller 2.
- the arrangement of the rudder 3 and the appendage 4 with respect to the propeller 2 will be described.
- the rudder 3 is disposed behind the propeller 2 as described above, and the distance L1 between the front edge of the rudder 3 and the blade center of the propeller 2 is set to be as large as about 44% of the diameter D of the propeller 2. Yes.
- the length of the appendage 4 in the hull direction is about 56% of the diameter D of the propeller 2, and the diameter is set to about 25% of the diameter D of the propeller 2.
- the appendage 4 having such dimensions protrudes from the front edge of the rudder 3 toward the vicinity of the rear end of the propeller 2, and the distance L2 between the rear end of the propeller 2 and the front end of the appendage 4 is as small as about 100 mm. It has become.
- the appendage 4 is disposed at a position near the propeller 2 behind the propeller 2 to effectively reduce the hub vortex of the propeller 2. ing.
- the distance L1 is preferably set to 30% to 60% of the diameter D of the propeller 2, and more preferably 40% to 50%.
- the distance L2 between the front end of the appendage 4 and the rear end of the propeller 2 is too wide, the hub vortex cannot be sufficiently suppressed, and ice may be caught between the propeller 2 and the appendage 4. Therefore, it is desirable that the distance L2 is small enough that the additive 4 and the propeller 2 do not interfere with each other. Therefore, the distance L2 is preferably set to about 50 mm or more and 300 mm or less.
- the diameter of the appendage 4 is preferably 10% or more and 40% or less with respect to the diameter D of the propeller 2 at the maximum position near the front end. Preferably they are 20% or more and 30% or less. Further, the length of the appendage 4 in the hull direction is preferably 40% or more and 70% or less, more preferably 50% or more and 60% or less with respect to the diameter D of the propeller 2.
- the additional 4 having the diameter set to about 25% of the diameter D of the propeller 2 and the length set to about 56% of the diameter D of the propeller 2 is disposed behind the propeller 2 (from the blade center of the propeller 2,
- the horsepower of the propeller 2 It has become clear from the model test by the applicant of the present application that is reduced by about 2 to 3% in plain water and about 1% in ice water.
- FIG. 1 illustrates the case where the appendage 4 protrudes greatly toward the front propeller 2, but on the contrary, as shown in FIG. 3, the boss cap of the propeller 6 has the rear appendage. You may make it protrude largely toward 7.
- FIG. 1 illustrates the case where the appendage 4 protrudes greatly toward the front propeller 2, but on the contrary, as shown in FIG. 3, the boss cap of the propeller 6 has the rear appendage. You may make it protrude largely toward 7.
- the distance L1 between the blade center of the propeller 6 and the front edge of the rudder 3 is set to be large as in the case shown in FIG. 1, but the direction of the propeller 6 is opposite to that shown in FIG. Is extended toward the appendage 7 so that the distance L2 between the rear end of the propeller 6 and the front end of the appendage 7 is reduced.
- the appendage 4 for reducing the hub vortex of the propeller 2 is installed at the height position of the propeller 2 at the front edge of the rudder 3 disposed behind the propeller 2.
- the distance L1 between the front edge of the rudder 3 and the blade center of the propeller 2 is not less than 30% and not more than 60% of the diameter D of the propeller 2, and the distance L2 between the front end of the appendage 4 and the rear end of the propeller 2 is Since the diameter D is not less than 50 mm and not more than 300 mm, the hub vortex generated in the propeller 2 can be effectively reduced even in the ship 1 in which the propeller 2 and the rudder 3 are spaced apart.
- the appendage 4 has a circular cross section in a direction perpendicular to the central axis extending in the hull direction, and has a spindle shape whose diameter decreases toward the rear end side at the rear part. It is preferable that the hub vortex generated in the propeller 2 can be reduced more effectively.
- the appendage 4 has a maximum diameter of 10% to 40% with respect to the diameter D of the propeller 2 and a length in the hull direction of 40% to 70% with respect to the diameter D of the propeller 2. % Or less, and in this way, the hub vortex generated in the propeller 2 can be particularly effectively reduced.
- the propeller propulsion efficiency in the ship in which the propeller and the rudder are spaced apart can be improved.
- the marine vessel propulsion apparatus of the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the scope of the present invention.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Lubricants (AREA)
- Wind Motors (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Prevention Of Electric Corrosion (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
また、図1には付加物4が前方のプロペラ2に向かって大きく突出する場合を例示しているが、これとは逆に、図3に示す如く、プロペラ6のボスキャップが後方の付加物7に向かって大きく突出するようにしても良い。図3に示した例では、プロペラ6の翼中心と舵3の前縁との距離L1は図1に示した場合と同様に大きく設定されているが、図1とは逆にプロペラ6の方を付加物7に向かって伸ばすことで、プロペラ6後端と付加物7の前端との距離L2を小さくしている。 In addition, as an additive to be installed on the front edge of the
Further, FIG. 1 illustrates the case where the
2 プロペラ
3 舵
4 付加物
5 付加物
6 プロペラ
7 付加物
D 径
L1 距離
L2 距離 1 Ship (Icebreaker or Ice-resistant Ship)
2
Claims (4)
- プロペラの後方に配した舵の前縁における前記プロペラの高さ位置に、前記プロペラのハブ渦を低減するための付加物が設置され、前記舵の前縁と前記プロペラの翼中心との距離は前記プロペラの径の30%以上60%以下であり、前記付加物の前端と前記プロペラの後端との距離は50mm以上300mm以下である船舶の推進装置。 At the height position of the propeller at the front edge of the rudder arranged behind the propeller, an appendage for reducing the hub vortex of the propeller is installed, and the distance between the front edge of the rudder and the blade center of the propeller is A propulsion device for a ship that is 30% to 60% of the diameter of the propeller, and a distance between a front end of the appendage and a rear end of the propeller is 50 mm to 300 mm.
- 前記付加物は、船体方向に延びる中心軸と直交する方向に円形の断面を有し、その後部には後端側に向かって径が小さくなる紡錘形の形状を有してなる、請求項1に記載の船舶の推進装置。 The appendix has a circular cross section in a direction orthogonal to a central axis extending in a hull direction, and has a spindle-shaped shape with a diameter decreasing toward a rear end side at a rear part thereof. The ship propulsion device described.
- 前記付加物は、最大径が前記プロペラの径に対して10%以上40%以下であり、船体方向の長さが前記プロペラの径に対して40%以上70%以下である、請求項2に記載の船舶の推進装置。 The maximum size of the adduct is 10% or more and 40% or less with respect to the diameter of the propeller, and the length in the hull direction is 40% or more and 70% or less with respect to the diameter of the propeller. The ship propulsion device described.
- 砕氷船又は耐氷船に適用した、請求項1~3のいずれか一項に記載の船舶の推進装置。 The ship propulsion device according to any one of claims 1 to 3, which is applied to an icebreaker or an ice-resistant ship.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2016/062615 WO2017183150A1 (en) | 2016-04-21 | 2016-04-21 | Ship propulsion device |
KR1020187033113A KR102229272B1 (en) | 2016-04-21 | 2016-04-21 | Ship's propulsion device |
EP16899422.6A EP3446960A4 (en) | 2016-04-21 | 2016-04-21 | Ship propulsion device |
JP2018512716A JP6793186B2 (en) | 2016-04-21 | 2016-04-21 | Ship propulsion device |
CN201680084793.7A CN109070985B (en) | 2016-04-21 | 2016-04-21 | Propulsion device for ship |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2016/062615 WO2017183150A1 (en) | 2016-04-21 | 2016-04-21 | Ship propulsion device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017183150A1 true WO2017183150A1 (en) | 2017-10-26 |
Family
ID=60116655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/062615 WO2017183150A1 (en) | 2016-04-21 | 2016-04-21 | Ship propulsion device |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3446960A4 (en) |
JP (1) | JP6793186B2 (en) |
KR (1) | KR102229272B1 (en) |
CN (1) | CN109070985B (en) |
WO (1) | WO2017183150A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7131445B2 (en) | 2019-03-18 | 2022-09-06 | 株式会社デンソー | valve timing adjuster |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61275096A (en) * | 1985-05-29 | 1986-12-05 | Ishikawajima Harima Heavy Ind Co Ltd | Stern structure |
JP2005007922A (en) * | 2003-06-16 | 2005-01-13 | Sumitomo Heavy Industries Marine & Engineering Co Ltd | Ship |
JP2008536761A (en) * | 2005-04-20 | 2008-09-11 | ロールスロイス アクティエボラグ | Propulsion and steering arrangements for ships |
JP2013256215A (en) * | 2012-06-13 | 2013-12-26 | Sumitomo Heavy Industries Marine & Engineering Co Ltd | Method of manufacturing rudder with rudder bulb |
JP2015120487A (en) * | 2013-12-25 | 2015-07-02 | 三菱重工業株式会社 | Hub eddy suppressing device and ship |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO302515B1 (en) * | 1995-09-29 | 1998-03-16 | Waertsilae Nsd Norway As | Progress and control unit for a vessel |
JP3004238B2 (en) | 1997-11-06 | 2000-01-31 | 川崎重工業株式会社 | Ship propulsion performance improvement device |
JP4301748B2 (en) * | 2001-06-29 | 2009-07-22 | 三菱重工業株式会社 | Ship propulsion device |
SE531482C2 (en) * | 2005-04-20 | 2009-04-21 | Rolls Royce Ab | Arrangements for propulsion and steering of a ship |
NL2001693C2 (en) * | 2008-06-17 | 2009-12-18 | Marifin Beheer B V | Assembly from a rudder and a screw. |
ES2548060T3 (en) * | 2008-09-12 | 2015-10-13 | Wärtsilä Netherlands B.V. | Propulsion and steering arrangement |
KR101291119B1 (en) * | 2011-05-26 | 2013-08-01 | 삼성중공업 주식회사 | Propulsion device of ship, and ship having the same |
JP2015074434A (en) * | 2013-10-11 | 2015-04-20 | ナカシマプロペラ株式会社 | Propulsion unit |
JP6046652B2 (en) | 2014-03-04 | 2016-12-21 | 三井造船株式会社 | Ship |
CN104443333A (en) * | 2014-11-28 | 2015-03-25 | 中国船舶重工集团公司第七○二研究所 | Rudder ball type contra-rotating propeller |
-
2016
- 2016-04-21 JP JP2018512716A patent/JP6793186B2/en active Active
- 2016-04-21 CN CN201680084793.7A patent/CN109070985B/en active Active
- 2016-04-21 EP EP16899422.6A patent/EP3446960A4/en not_active Ceased
- 2016-04-21 WO PCT/JP2016/062615 patent/WO2017183150A1/en active Application Filing
- 2016-04-21 KR KR1020187033113A patent/KR102229272B1/en active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61275096A (en) * | 1985-05-29 | 1986-12-05 | Ishikawajima Harima Heavy Ind Co Ltd | Stern structure |
JP2005007922A (en) * | 2003-06-16 | 2005-01-13 | Sumitomo Heavy Industries Marine & Engineering Co Ltd | Ship |
JP2008536761A (en) * | 2005-04-20 | 2008-09-11 | ロールスロイス アクティエボラグ | Propulsion and steering arrangements for ships |
JP2013256215A (en) * | 2012-06-13 | 2013-12-26 | Sumitomo Heavy Industries Marine & Engineering Co Ltd | Method of manufacturing rudder with rudder bulb |
JP2015120487A (en) * | 2013-12-25 | 2015-07-02 | 三菱重工業株式会社 | Hub eddy suppressing device and ship |
Non-Patent Citations (1)
Title |
---|
See also references of EP3446960A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR20180135469A (en) | 2018-12-20 |
CN109070985B (en) | 2021-01-19 |
JP6793186B2 (en) | 2020-12-02 |
KR102229272B1 (en) | 2021-03-19 |
EP3446960A1 (en) | 2019-02-27 |
CN109070985A (en) | 2018-12-21 |
EP3446960A4 (en) | 2019-11-06 |
JPWO2017183150A1 (en) | 2019-03-28 |
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