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EP3871970A1 - Récipient - Google Patents

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Publication number
EP3871970A1
EP3871970A1 EP20159261.5A EP20159261A EP3871970A1 EP 3871970 A1 EP3871970 A1 EP 3871970A1 EP 20159261 A EP20159261 A EP 20159261A EP 3871970 A1 EP3871970 A1 EP 3871970A1
Authority
EP
European Patent Office
Prior art keywords
vessel
azimuth thrusters
centre plane
azimuth
thrusters
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
Application number
EP20159261.5A
Other languages
German (de)
English (en)
Other versions
EP3871970C0 (fr
EP3871970B1 (fr
Inventor
Jan Hendrik van Schaik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Damen 40 BV
Original Assignee
Damen 40 BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to ES20159261T priority Critical patent/ES2991674T3/es
Application filed by Damen 40 BV filed Critical Damen 40 BV
Priority to EP20159261.5A priority patent/EP3871970B1/fr
Priority to PCT/EP2021/054099 priority patent/WO2021170493A1/fr
Priority to AU2021226803A priority patent/AU2021226803A1/en
Priority to CN202180015832.9A priority patent/CN115135575A/zh
Priority to CA3168219A priority patent/CA3168219A1/fr
Priority to US17/904,733 priority patent/US20230070348A1/en
Publication of EP3871970A1 publication Critical patent/EP3871970A1/fr
Application granted granted Critical
Publication of EP3871970C0 publication Critical patent/EP3871970C0/fr
Publication of EP3871970B1 publication Critical patent/EP3871970B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • B63B35/66—Tugs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/38—Keels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/14—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
    • 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
    • B63H25/02—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring
    • 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
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • 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
    • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
    • 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
    • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
    • B63H2005/1256—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis with mechanical power transmission to propellers
    • 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
    • B63H25/02—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring
    • B63H2025/026—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring using multi-axis control levers, or the like, e.g. joysticks, wherein at least one degree of freedom is employed for steering, slowing down, or dynamic anchoring

Definitions

  • the present invention relates to a vessel comprising a hull including a bow and a stern and having a length-to-beam ratio which is smaller than 10:1, preferably smaller than 5:1, wherein the hull has a vertical centre plane extending in a direction from the bow to the stern.
  • Such a vessel is known, for example in the form of a tug boat of which the length-to-beam ratio is about 3:1.
  • a typical known tug boat has two azimuth thrusters for propelling and manoeuvring the tug boat, which azimuth thrusters are located at either side of the centre plane.
  • the azimuth thrusters are drivably coupled to respective diesel engines and can be operated by a helmsman, for example by means of respective joysticks.
  • An object of the invention is to provide a highly manoeuvrable vessel.
  • the vessel has at least two azimuth thrusters including respective propellers, which azimuth thrusters are located next to each other in transverse direction of the centre plane and wherein each azimuth thruster is drivably coupled to its own prime mover.
  • a row of at least four azimuth thrusters extends in transverse direction of the hull.
  • the same number of azimuth thrusters will be located at both sides of the centre plane.
  • the relatively wide beam provides the possibility to apply a plurality of azimuth thrusters at each side of the centre plane.
  • an increasing number of azimuth thrusters may have decreasing propeller diameters of the individual azimuth thrusters. Consequently, the total height of the series of azimuth thrusters can be kept relatively small.
  • relatively small azimuth thrusters also provides the opportunity to apply relatively small cooperating prime movers.
  • An advantage of relatively small azimuth thrusters and prime movers is that their response time is relatively short, which leads to improved manoeuvrability of the vessel.
  • azimuth thrusters are aligned in transverse direction of the centre plane.
  • Distances between centrelines of the propellers of each two neighbouring azimuth thrusters may be the same in order to achieve a symmetric arrangement.
  • the distance between centrelines of the propellers of the neighbouring azimuth thrusters which are located at either side of the central plane, i.e. the two azimuth thrusters which are located closest to the central plane, may be different from the distance between the centrelines of the propellers of each two neighbouring azimuth thrusters at each side of the centre plane.
  • the propellers of the at least two azimuth thrusters have different diameters.
  • the propeller of one of the at least two azimuth thrusters which is located at a larger distance from the centre plane than the other one of the at least two azimuth thrusters may have a larger diameter than the propeller of the other one of the at least two azimuth thrusters.
  • the azimuth thrusters may be located at the bow or at the stern.
  • At least one of the prime movers may be an internal combustion engine.
  • the internal combustion engine may be a diesel engine having a maximum speed above 1000 rpm.
  • Such a diesel engines may be known as a high-speed diesel engine. If the desired power per individual azimuth thruster is relatively large such that a low-speed diesel engine must be applied, it is in the spirit of the present invention preferred to apply a higher number of relatively small azimuth thrusters including high-speed diesel engines instead of applying a smaller number of relatively large azimuth thrusters including low-speed diesel engines.
  • the at least two azimuth thrusters and their prime movers may be functionally coupled to a common controller for operating the at least two azimuth thrusters simultaneously.
  • the common controller may be a joystick such that an operator can operate two joysticks, one for simultaneously controlling the at least two azimuth thrusters including their prime movers at one side of the centre plane and one for simultaneously controlling the at least two azimuth thrusters including their prime movers at the other side of the centre plane.
  • a skeg is mounted to a lower side of the hull, which skeg extends in longitudinal direction of the hull, for example from the bow to about halfway the hull.
  • the vessel has at least two skegs which may have a relatively small height, which reduces draught of the vessel, improves seakeeping behaviour and facilitates easy docking. Furthermore, at least two skegs improve course stability and manoeuvrability and allows relatively large steering forces during escorting a large vessel.
  • the skeg may be located at a horizontal position between axes of rotation of the respective propellers of the at least two azimuth thrusters as seen in a direction from the stern to the bow.
  • the maximum height of the skeg may be smaller than the diameter or 1.5 times the diameter of each of the propellers of the respective azimuth thrusters, or even smaller than 80% thereof.
  • the vessel may be a tug boat.
  • Figs. 1-3 show an embodiment of a vessel according to the invention.
  • the vessel is a tug boat 1, which has a hull 2 including a bow 3 and a stern 4.
  • a tug boat 1 is typically used as an escort tug, anchor handling tug, salvage tug, oil recovery vessel, safety stand-by vessel or as ship handling tug near offshore terminals and FPSOs (Floating Production Storage and Offloading vessels).
  • the tug boat 1 may be used for assisting large ships which are much larger than the tug boat 1.
  • the tug boat 1 may be connected to the large ship by a towing cable for towing the large ship in a specific direction or the tug boat 1 is manoeuvred against the large ship in order to be able to push it in a certain direction.
  • the hull 2 of the tug boat 1 as shown in Figs. 1-3 has a length of about 50 m and a beam of about 16 m, hence a length-to-beam ratio of about 3.
  • the hull 2 has a vertical centre plane CP which extends in a direction from the bow 3 to the stern 4, see Figs. 2 and 3 .
  • a central skeg 5 is mounted to a lower side of the hull 2. The central skeg 5 extends in longitudinal direction of the hull 2 from the bow 3 to about halfway the hull 2 at the centre plane CP.
  • the tug boat 1 is provided with a series of four azimuth thrusters 6, which are arranged in an aligned row that extends in transverse direction of the centre plane CP.
  • the azimuth thrusters 6 have respective propellers 6a which are located below the hull 2, in this case at the stern 4. In an alternative embodiment the azimuth thrusters 6 may be located at the bow 3 or elsewhere in between.
  • azimuth thruster for propelling a vessel
  • ASD azimuth-stern-drive
  • the entire propulsion unit can turn in the horizontal plane and thrust can be produced in any desired direction.
  • two azimuth thrusters 6 are located next to each other in transverse direction of the centre plane CP and the azimuth thrusters 6 are drivably coupled to respective prime movers in the form of high-speed diesel engines 7 via respective propeller shafts 8.
  • the high-speed diesel engines 7 are located within the hull 2 below a deck 9. The high-speed diesel engines 7 provide a fast response when increased thrust is desired.
  • Fig. 3 shows that the propellers 6a of the outer two azimuth thrusters 6 have larger diameters than the propellers 6a of the inner two azimuth thrusters 6.
  • the pair of azimuth thrusters 6 and their prime movers 7 at one side of the centre plane CP can be operated simultaneously by a first joystick and the pair of azimuth thrusters 6 and their prime movers 7 at the other side of the centre plane CP can be operated simultaneously by a second joystick.
  • Fig. 4 shows an alternative embodiment, which distinguishes from the embodiment as shown in Fig. 3 in that two skegs 5a, 5b are mounted to a lower side of the hull 2.
  • the skegs 5 extend in longitudinal direction of the hull 2 from the bow 3 to about halfway the hull 2 at a distance from the centre plane CP.
  • each of the skegs 5a, 5b is located at a horizontal position between axes of rotation of the propellers 6a of the neighbouring azimuth thrusters 6. Due to the application of two skegs 5a, 5b their dimensions in vertical direction are relatively small, which creates a relatively small draught.
  • the combination of at least two relatively small azimuth thrusters 6 and at least one skeg 5a, 5b at each side of the centre plane CP allows a small draught and facilitates docking, for example.
  • the height of each of the skegs 5a, 5b may vary along its longitudinal direction. The maximum height may be smaller than the diameter or 1.5 times the diameter of each of the propellers 6a.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
  • Glass Compositions (AREA)
  • Closures For Containers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Earth Drilling (AREA)
EP20159261.5A 2020-02-25 2020-02-25 Récipient Active EP3871970B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP20159261.5A EP3871970B1 (fr) 2020-02-25 2020-02-25 Récipient
ES20159261T ES2991674T3 (es) 2020-02-25 2020-02-25 Una embarcación
AU2021226803A AU2021226803A1 (en) 2020-02-25 2021-02-19 A vessel
CN202180015832.9A CN115135575A (zh) 2020-02-25 2021-02-19 船
PCT/EP2021/054099 WO2021170493A1 (fr) 2020-02-25 2021-02-19 Vaisseau
CA3168219A CA3168219A1 (fr) 2020-02-25 2021-02-19 Vaisseau
US17/904,733 US20230070348A1 (en) 2020-02-25 2021-02-19 A vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20159261.5A EP3871970B1 (fr) 2020-02-25 2020-02-25 Récipient

Publications (3)

Publication Number Publication Date
EP3871970A1 true EP3871970A1 (fr) 2021-09-01
EP3871970C0 EP3871970C0 (fr) 2024-10-09
EP3871970B1 EP3871970B1 (fr) 2024-10-09

Family

ID=69845812

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20159261.5A Active EP3871970B1 (fr) 2020-02-25 2020-02-25 Récipient

Country Status (7)

Country Link
US (1) US20230070348A1 (fr)
EP (1) EP3871970B1 (fr)
CN (1) CN115135575A (fr)
AU (1) AU2021226803A1 (fr)
CA (1) CA3168219A1 (fr)
ES (1) ES2991674T3 (fr)
WO (1) WO2021170493A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750607A (en) * 1971-06-23 1973-08-07 D Seymour Shallow-draft boat
US3934531A (en) * 1974-07-18 1976-01-27 Allen Rudolph A Ocean going cargo transport system
US4580517A (en) * 1983-03-04 1986-04-08 Gotaverken Arendal Ab Vessel having parallel hulls with 360 degree rotatable thrusters
CN103482037A (zh) * 2013-09-23 2014-01-01 浙江海洋学院 一种小型拖船
WO2016023080A1 (fr) * 2014-08-12 2016-02-18 Frozen Motion Pte Ltd Embarcation destinée à la réalisation d'opérations en surface

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR585270A (fr) * 1923-07-06 1925-02-24 Appareil de propulsion pour navires
JP5648826B2 (ja) * 2010-02-22 2015-01-07 独立行政法人海上技術安全研究所 二軸船尾双胴型船舶
JP2011235740A (ja) * 2010-05-10 2011-11-24 Kayseven Co Ltd 船舶
RU2549739C1 (ru) * 2013-11-06 2015-04-27 Федеральное государственное унитарное предприятие "Крыловский государственный научный центр" Ледокольное судно для работы преимущественно в мелководных замерзающих акваториях
EP3105115A1 (fr) * 2014-02-13 2016-12-21 Rolls-Royce Marine AS Améliorations relatives à la propulsion d'un navire avec des dispositifs de propulsion principal et secondaire
CN109334886A (zh) * 2018-09-26 2019-02-15 蚌埠市神舟机械有限公司 一种高性能全回转港作拖轮

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750607A (en) * 1971-06-23 1973-08-07 D Seymour Shallow-draft boat
US3934531A (en) * 1974-07-18 1976-01-27 Allen Rudolph A Ocean going cargo transport system
US4580517A (en) * 1983-03-04 1986-04-08 Gotaverken Arendal Ab Vessel having parallel hulls with 360 degree rotatable thrusters
CN103482037A (zh) * 2013-09-23 2014-01-01 浙江海洋学院 一种小型拖船
WO2016023080A1 (fr) * 2014-08-12 2016-02-18 Frozen Motion Pte Ltd Embarcation destinée à la réalisation d'opérations en surface

Also Published As

Publication number Publication date
EP3871970C0 (fr) 2024-10-09
US20230070348A1 (en) 2023-03-09
WO2021170493A1 (fr) 2021-09-02
CA3168219A1 (fr) 2021-09-02
AU2021226803A1 (en) 2022-09-15
CN115135575A (zh) 2022-09-30
EP3871970B1 (fr) 2024-10-09
ES2991674T3 (es) 2024-12-04

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