US20100107949A1 - Multi-purpose icebreaker - Google Patents
Multi-purpose icebreaker Download PDFInfo
- Publication number
- US20100107949A1 US20100107949A1 US12/532,305 US53230508A US2010107949A1 US 20100107949 A1 US20100107949 A1 US 20100107949A1 US 53230508 A US53230508 A US 53230508A US 2010107949 A1 US2010107949 A1 US 2010107949A1
- Authority
- US
- United States
- Prior art keywords
- icebreaker
- vessel
- propulsion devices
- azimuth
- ice
- 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.)
- Abandoned
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/08—Ice-breakers or other vessels or floating structures for operation in ice-infested waters; Ice-breakers, or other vessels or floating structures having equipment specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
Definitions
- the present invention relates to a multi-purpose icebreaker having a front part, an aft part, main propulsion devices and steering devices.
- the conventional icebreakers are provided with shaft propellers and rudders at the stern of the vessel.
- shaft propellers were added also in the front of the vessel.
- U.S. Pat. No. 5,218,917 presents a special icebreaking ship, which has azimuth propellers at the stern of the ship.
- the special feature of this vessel is that only the aft part of the ship is optimized for braking ice and the forward part of the ship is optimized for open water conditions. The purpose of this is that normally in open water the ship is moving forward and in heavy ice conditions the ship is breaking ice by moving in the aft direction.
- An object of the present invention is to provide an improved multi-purpose icebreaker.
- the second purpose of the invention is to provide a multi-purpose icebreaker, which has improved steering characteristics and which is efficient at continuous slow speed in heavy ice conditions, especially when ice ridges may occur.
- the features of the invention are described in the characterizing part of claim 1 .
- the icebreaker according to the invention is characterized in that in the multi-purpose icebreaker at least one main propulsion device is located in the front part of the vessel and at least one steering device is located in the aft part of the vessel.
- this kind of icebreaking vessel has excellent steering characteristics.
- the vessel can easily turn to any direction.
- the icebreaking vessel can push the ice field efficiently forward and also to both sides if for example the passage has to be made wider for the ship towed.
- the icebreaking ship provided with azimuth propulsion devices at the front part of the ship is especially useful in the situations, where the ship has to move slowly in the in heavy ice conditions, and when ramming is not possible. These characteristics are also useful, when the ship has to stay at a predetermined position in a moving ice field. Such needs occur for example on the oil fields at arctic seas.
- the multi-purpose icebreaker has in the front part of vessel two main propulsion devices, which are azimuth propulsion devices, and in the aft part of the vessel the steering device comprises one or more tunnel thrusters.
- the main propulsion device in the front part of vessel comprises two azimuth propulsion devices, and that the steering device in the aft part of the vessel comprises one or more azimuth propulsion devices, which are smaller than the main propulsion devices in the front part of the ship.
- the main propulsion device in the front part of the vessel comprises two conventional shaft propulsion devices, and the steering device in the aft part of the vessel comprises one or more azimuth propulsion devices.
- the main propulsion device in the front part of the vessel comprises two conventional shaft propulsion devices, and the steering device in the aft part of the vessel comprises one or more tunnel thrusters.
- FIG. 1 presents a side view of an embodiment of the multi-purpose icebreaker according to the invention.
- FIG. 2 presents a side view of the second embodiment of the multi-purpose icebreaker according to the invention.
- FIG. 3 presents a side view of the third embodiment of the multi-purpose icebreaker according to the invention.
- FIG. 4 presents a side view of the multi-purpose icebreaker of FIG. 1 attached to a turret and operating as an offloading icebreaker on an oil field under the sea
- FIG. 5 presents a bottom view of an embodiment of the multi-purpose icebreaker according to the invention.
- FIG. 1 presents a multi-purpose icebreaker 10 being attached to another ship 11 .
- the purpose of the attachment is for example that the icebreaker 10 is towing the other ship 11 .
- the attachment may be for other reasons, as described below.
- the water 12 is described as open water, but of course because the vessel 10 is an icebreaker, there may be also solid ice or ice ridges on the surface of the water 12 .
- the multi-purpose icebreaker 10 in FIG. 1 is provided with two azimuth propulsion devices 20 at the bow of the vessel. These azimuth propulsion devices 20 provide the only propulsion thrust for the vessel 10 .
- the multi-purpose icebreaker 10 is also provided with three steering tunnel thrusters 21 at the stern of the vessel.
- An advantage of the pulling mode azimuth propulsion devices 20 at the bow of the icebreaker 10 of FIG. 1 is that it is very easy to steer the icebreaker in the heavy ice conditions.
- the icebreaker 10 can easily make turns and it can be steered for widening the breadth of the required channel to be formed in the ice.
- the propulsion devices 20 at the bow of the icebreaker 10 also give very good characteristics for the vessel when it is needed to move forward continuously at slow speed and ramming is not possible.
- the presented icebreaker 10 can push through the solid ice and ice ridges.
- the second advantage of the propulsion devices 20 at the bow of the icebreaker 10 of FIG. 1 is that the propellers in front of the vessel crush the ice blocks smaller. Then the ice blocks do not disturb the other vessel to be towed or some other equipment close the vessel, as described below.
- FIG. 2 presents the second embodiment of the multi-purpose icebreaker 10 according to the invention.
- the icebreaker 10 is also attached to another ship 11 for towing or other purpose.
- the icebreaker 10 is also provided with two azimuth propulsion devices 20 at the bow of the vessel.
- these azimuth propulsion devices 20 are not the only propulsion apparatuses of the vessel 10 , but they provide the main propulsion thrust for the icebreaker 10 .
- the difference of the icebreaker 10 of FIG. 2 compared to the icebreaker 10 of FIG. 1 is that in FIG. 2 the icebreaker 10 is provided with two smaller azimuth thrusters 22 at the stern of the vessel 10 .
- the azimuth thrusters 22 are mainly intended for improving steering in difficult circumstances and for dynamic positioning. However, they can also be used for forward thrust together with the main azimuth propulsion devices 20 at the bow of the vessel, so increasing the total forward thrust of the icebreaker 10 .
- FIG. 3 there is described the third embodiment of the multi-purpose icebreaker 10 according to the invention.
- This icebreaker 10 is provided with conventional shaft propellers 30 in front of the vessel. These shaft propellers 30 provide the main forward thrust for the vessel 10 .
- the multi-purpose icebreaker 10 is provided with three steering tunnel thrusters 21 at the bow of the vessel and with two smaller azimuth thrusters 22 at the stern of the vessel 10 .
- the small azimuth thrusters 22 at the stern of the vessel 10 are mainly intended for improving steering in difficult circumstances and for dynamic positioning. However, as described in FIG. 2 , they can also be used for increasing forward thrust together with the conventional shaft propellers 30 , which are the main propulsion devices of the icebreaker 10 .
- FIG. 4 presents the multi-purpose icebreaker 10 of FIG. 1 provided with a turret 40 for loading oil to the tanker vessel 11 attached to the icebreaker 10 .
- the turret 40 is provided with oil tubes 41 and anchor wires 42 .
- the azimuth propulsion devices 20 at the bow of the icebreaker 10 are very useful because they keep the turret 40 , oil tubes 41 and anchor wires 42 clear from ice.
- the propellers of the azimuth propulsion devices 20 also crush the large ice blocks smaller.
- FIG. 5 presents a bottom view of a multi-purpose icebreaker 10 according to the invention.
- the icebreaker 10 is provided with an inward curved towing notch 15 , two azimuth propulsion devices 20 a and 20 b at the bow of the vessel, and three steering tunnel thrusters 21 at the stern of the vessel.
- the turret 40 is located in the middle of the ice plough 16 , so that the ice plough 16 forms a protecting shelter around the turret 40 .
- FIG. 5 it can be clearly seen the protective function of the ice plough 16 .
- the azimuth propulsion devices 20 a and 20 b at the bow of the vessel 10 push the ice blocks along the sides of the ice plough 16 , so preventing the ice blocks from striking the turret 40 or the equipment, such as the oil tubes 41 and anchoring wires 42 attached to the turret 40 .
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Earth Drilling (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20070241A FI20070241L (fi) | 2007-03-23 | 2007-03-23 | Monitoiminen jäänmurtaja |
FI20070241 | 2007-03-23 | ||
PCT/FI2008/000045 WO2008116964A1 (en) | 2007-03-23 | 2008-03-20 | Multi-purpose icebreaker |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100107949A1 true US20100107949A1 (en) | 2010-05-06 |
Family
ID=37930043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/532,305 Abandoned US20100107949A1 (en) | 2007-03-23 | 2008-03-20 | Multi-purpose icebreaker |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100107949A1 (fi) |
CA (1) | CA2680509A1 (fi) |
FI (1) | FI20070241L (fi) |
NO (1) | NO20093052L (fi) |
RU (2) | RU2009139056A (fi) |
WO (1) | WO2008116964A1 (fi) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170174295A1 (en) * | 2014-05-08 | 2017-06-22 | Stena Rederi Ab | Arrangement for Ice-Breaking |
RU2655177C1 (ru) * | 2017-04-06 | 2018-05-24 | Федеральное государственное унитарное предприятие "Крыловский государственный научный центр" | Ледокольное судно (варианты) |
CN111976904A (zh) * | 2020-08-19 | 2020-11-24 | 哈尔滨工程大学 | 一种破冰船辅助破冰动力系统及破冰方法 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI125245B (fi) | 2009-03-12 | 2015-07-31 | Aker Arctic Technology Inc | Jääpeitteisissä vesissä toimiva alus tai kelluva rakenne ja sen käyttömenetelmä |
US20120285898A1 (en) * | 2010-02-03 | 2012-11-15 | Nedwed Timothy J | Dispersion of Oil Using Artificially Generated Waves |
KR100983084B1 (ko) * | 2010-02-08 | 2010-09-17 | 대우조선해양 주식회사 | 선회식 추진장치를 갖는 해양 구조물 |
US9056658B2 (en) * | 2010-03-31 | 2015-06-16 | Maersk Supply Service A/S | Icebreaking vessel |
EA022074B1 (ru) | 2010-03-31 | 2015-10-30 | Мерск Сепплай Сервис А/С | Ледокольное судно |
CA2794933C (en) * | 2010-03-31 | 2016-09-27 | Maersk Supply Service A/S | An icebreaking vessel |
DK177707B1 (da) | 2010-03-31 | 2014-03-24 | Maersk Supply Service As | Fremgangsmåde til brydning af is |
US9457880B2 (en) * | 2012-02-07 | 2016-10-04 | Rolls-Royce Ab | Propulsor arrangement for a marine vessel and a marine vessel constructed with this type of propulsor arrangement |
RU2616503C2 (ru) * | 2015-08-31 | 2017-04-17 | Федеральное государственное унитарное предприятие "Крыловский государственный научный центр" (ФГУП "Крыловский государственный научный центр") | Ледокольное судно с подруливающим устройством, выполненным с использованием штатного насоса тушения пожаров на аварийных судах |
FI128428B (fi) * | 2015-10-28 | 2020-05-15 | Ils Oy | Jäätä murtava alus |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3176645A (en) * | 1963-04-25 | 1965-04-06 | Shell Oil Co | Ship positioning apparatus |
US5218917A (en) * | 1991-03-18 | 1993-06-15 | Kvaerner Masa-Yards Oy | Icebreaking ship |
US5615630A (en) * | 1992-12-14 | 1997-04-01 | Finnyards Oy | Stern arrangement for a ship |
US5996520A (en) * | 1997-02-27 | 1999-12-07 | Kvaerner Masa-Yards Oy | Icebreaking method and icebreaker |
US20100226723A1 (en) * | 2005-04-25 | 2010-09-09 | Gary Chouest | Offshore petroleum discharge system |
US7958835B2 (en) * | 2007-01-01 | 2011-06-14 | Nagan Srinivasan | Offshore floating production, storage, and off-loading vessel for use in ice-covered and clear water applications |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6162105A (en) * | 1997-04-11 | 2000-12-19 | Den Norske Stats Oljeselskap A.S. | Two-part ship for use in oil transport in arctic waters |
-
2007
- 2007-03-23 FI FI20070241A patent/FI20070241L/fi not_active Application Discontinuation
-
2008
- 2008-03-20 WO PCT/FI2008/000045 patent/WO2008116964A1/en active Application Filing
- 2008-03-20 RU RU2009139056/11A patent/RU2009139056A/ru unknown
- 2008-03-20 US US12/532,305 patent/US20100107949A1/en not_active Abandoned
- 2008-03-20 CA CA002680509A patent/CA2680509A1/en not_active Abandoned
-
2009
- 2009-09-23 NO NO20093052A patent/NO20093052L/no not_active Application Discontinuation
-
2012
- 2012-11-16 RU RU2012148892/11A patent/RU2012148892A/ru not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3176645A (en) * | 1963-04-25 | 1965-04-06 | Shell Oil Co | Ship positioning apparatus |
US5218917A (en) * | 1991-03-18 | 1993-06-15 | Kvaerner Masa-Yards Oy | Icebreaking ship |
US5615630A (en) * | 1992-12-14 | 1997-04-01 | Finnyards Oy | Stern arrangement for a ship |
US5996520A (en) * | 1997-02-27 | 1999-12-07 | Kvaerner Masa-Yards Oy | Icebreaking method and icebreaker |
US20100226723A1 (en) * | 2005-04-25 | 2010-09-09 | Gary Chouest | Offshore petroleum discharge system |
US7958835B2 (en) * | 2007-01-01 | 2011-06-14 | Nagan Srinivasan | Offshore floating production, storage, and off-loading vessel for use in ice-covered and clear water applications |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170174295A1 (en) * | 2014-05-08 | 2017-06-22 | Stena Rederi Ab | Arrangement for Ice-Breaking |
RU2655177C1 (ru) * | 2017-04-06 | 2018-05-24 | Федеральное государственное унитарное предприятие "Крыловский государственный научный центр" | Ледокольное судно (варианты) |
CN111976904A (zh) * | 2020-08-19 | 2020-11-24 | 哈尔滨工程大学 | 一种破冰船辅助破冰动力系统及破冰方法 |
Also Published As
Publication number | Publication date |
---|---|
RU2009139056A (ru) | 2011-04-27 |
RU2012148892A (ru) | 2014-05-27 |
CA2680509A1 (en) | 2008-10-02 |
FI20070241A0 (fi) | 2007-03-23 |
FI20070241L (fi) | 2008-09-24 |
NO20093052L (no) | 2009-09-23 |
WO2008116964A1 (en) | 2008-10-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: STATOILHYDRO ASA,NORWAY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ERONEN, HARRI;REEL/FRAME:023371/0561 Effective date: 20090917 |
|
AS | Assignment |
Owner name: STATOIL ASA, NORWAY Free format text: CHANGE OF NAME;ASSIGNOR:STATOILHYDRO ASA;REEL/FRAME:031528/0807 Effective date: 20091102 |
|
AS | Assignment |
Owner name: STATOIL PETROLEUM AS, NORWAY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STATOIL ASA;REEL/FRAME:031627/0265 Effective date: 20130502 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |