EP2987719A1 - Gefäß mit einer Antriebseinheit - Google Patents

Gefäß mit einer Antriebseinheit Download PDF

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Publication number
EP2987719A1
EP2987719A1 EP14181977.1A EP14181977A EP2987719A1 EP 2987719 A1 EP2987719 A1 EP 2987719A1 EP 14181977 A EP14181977 A EP 14181977A EP 2987719 A1 EP2987719 A1 EP 2987719A1
Authority
EP
European Patent Office
Prior art keywords
propeller
propulsion unit
nozzle
vessel
orientation
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
EP14181977.1A
Other languages
English (en)
French (fr)
Other versions
EP2987719B1 (de
Inventor
Steinar Aasebo
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.)
Kongsberg Maritime AS
Original Assignee
Rolls Royce Marine AS
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 ES14181977.1T priority Critical patent/ES2627849T3/es
Application filed by Rolls Royce Marine AS filed Critical Rolls Royce Marine AS
Priority to EP14181977.1A priority patent/EP2987719B1/de
Priority to DK14181977.1T priority patent/DK2987719T3/en
Priority to PCT/EP2015/069257 priority patent/WO2016026962A1/en
Priority to KR1020177007863A priority patent/KR20170047302A/ko
Priority to JP2017510497A priority patent/JP2017525613A/ja
Priority to CN201580045245.9A priority patent/CN106715260A/zh
Publication of EP2987719A1 publication Critical patent/EP2987719A1/de
Priority to HK16110058.0A priority patent/HK1221946A1/zh
Application granted granted Critical
Publication of EP2987719B1 publication Critical patent/EP2987719B1/de
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
    • 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
    • B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
    • 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
    • B63H1/16—Propellers having a shrouding ring attached to blades
    • B63H2001/165—Hubless propellers, e.g. peripherally driven shrouds with blades projecting from the shrouds' inside surfaces

Definitions

  • the present invention relates to a propulsion unit for being mounted on a submerged portion of the hull of a waterborne vessel, the propulsion unit comprising a propeller nozzle for being pivotally mounted to the hull, a propeller rotatably arranged inside the nozzle, a drive means for driving the propeller, and a deployment mechanism for controlling the orientation of the propeller nozzle.
  • the present invention further a vessel comprising such propulsion unit.
  • Waterborne vessels are often operated in both shallow and deeper waters, such as oceans, coastal waters and rivers.
  • a propeller is most often used for providing thrust enabling the vessel to move.
  • the size of the propeller is related to the obtainable thrust and large propellers may be needed to provide the necessary trust.
  • Using large propellers may result in the propeller extending below the lowest point of the hull making the propeller the lowermost point of the vessel.
  • the propeller thus determines the draught of the vessel making the propeller vulnerable to impact. This is usually not a problem when vessels are operated in sufficient water depth, but when a vessel is operated close to land, or across a shallow water area, a need may arises for minimizing the draught of the vessel.
  • US 5,397, 255 disclosed a propeller mounted on a retractable rod.
  • Other existing solutions involve changing the diameter of the propeller by folding the propeller as disclosed in US 4,565,531 .
  • a propulsion unit for being mounted on a submerged portion of the hull of a waterborne vessel, the propulsion unit comprising a propeller nozzle for being pivotally mounted to the hull, a propeller rotatably arranged inside the nozzle, a drive means for driving the propeller, and a deployment mechanism for controlling the orientation of the propeller nozzle, wherein the propeller nozzle is pivotally around a nozzle pivoting axis intersecting the propeller nozzle, between a deployed orientation wherein the propeller is arranged in a substantially upright position suitable for providing thrust for moving the vessel and a retracted orientation wherein the propeller is arranged in a tilted or substantially horizontal position to reduce a draught of the vessel.
  • an improved propulsion unit in particular a more efficient propulsion unit in which a relatively large propeller diameter may be utilized, while at the same time accommodating for low water depths.
  • the propulsion unit is in particular suited for vessels operating in both deep as well as in shallow water. During normal operation, the propulsion unit is flipped down. This allows for much larger propeller diameter than for conventional propulsion unit.
  • the propeller and propeller nozzle may be turned to reduce the draught of the vessel and due to the particulars of the invention the turning radius of the propeller and propeller nozzle becomes as little as possible, helping to reduce the spaced needed to accommodate the propulsion unit.
  • the nozzle pivoting axis may extending in a direction perpendicular to a direction of an axis of rotation of the propeller. Also, the nozzle pivoting axis may extends in a direction substantially transversal to a direction of sailing of the waterborne vessel.
  • the nozzle pivoting axis may be offset from the axis of rotation of the propeller.
  • attachment points for the propeller nozzle may be arranged closer to the hull of the vessel compared to a propulsion unit wherein the pivoting axis is coincident with an axis of rotation of the propeller. Having attachment points closer to the hull results in a better transmission of forces between the propulsion unit the hull.
  • the dimensions of the supporting structures may be reduced, which may improve the hydrodynamic characteristics of the hull and reduces drag.
  • reducing the dimension of the supporting structure may reduce draught of the vessel when the propeller nozzle is in the retracted orientation.
  • the offset rotating axis enables the use of larger propellers, which may be advantageous.
  • pivoting axis may intersect the axis of rotation of the propeller.
  • the propeller may be rim-driven and in this embodiment the drive means may be a permanent magnet motor.
  • the principles of a rim driven propeller utilizing permanent magnets have previously been disclosed international application, publication number WO 2010/13480 A2 by the applicant.
  • stationary permanent magnets may be provided in the propeller nozzle and the propeller may be mounted in a propeller housing provided with permanent magnets and rotatably arranged inside the propeller nozzle.
  • a bearing for the propeller housing is provided.
  • the propeller nozzle may be adapted to be attached to supporting structures extending from the submerged portion of the hull.
  • the propeller may be mounted on a rotatable propeller shaft supported by a supporting structure extending inside the propeller nozzle and the drive means may be a motor arranged to rotate the propeller shaft.
  • the propulsion unit may be adapted to be pivotally mounted to the submerged portion of the hull about a substantial vertical azimuth axis thereby providing an azimuth thruster functionality.
  • a direction of thrust from the propulsion unit may be directed in other directions than otherwise provided by the propeller, which may be used for enhanced steering of the vessel.
  • the invention further relates to a waterborne vessel, such as an offshore supply vessel or an mobile offshore drilling unit, comprising one or more of the above described propulsion unit.
  • a waterborne vessel such as an offshore supply vessel or an mobile offshore drilling unit, comprising one or more of the above described propulsion unit.
  • Fig. 1 shows two propulsions unit mounted on a submerged portion of a hull 2 in an aft section of a vessel 1.
  • Each propulsion unit comprises a pivotally mounted propeller nozzle 13 and a rotatable propeller 14 arranged inside the nozzle.
  • a deployment mechanism 15 is provided for pivoting the propeller nozzle and the propeller about a nozzle pivoting axis 17 between a deployed orientation and a retracted orientation.
  • the propeller in the deployed orientation shown in Fig. 2a the propeller is arranged in a substantially upright position suitable for providing thrust for moving the vessel as and in the retracted orientation shown in Fig. 2b the propeller is arranged in a tilted or substantially horizontal position to reduce a draught D of the vessel.
  • the propulsion unit further comprises drive means 16 for driving the propeller as will be further described below.
  • the propulsion units 10 are shown to be mounted between a central supporting structure 30 and side supporting structures 31 extending from the hull 2.
  • the propulsion unit may also be mounted to on a hull in a number of other ways without departing from the scope of the invention.
  • Nozzle protrusions 131 extends from the propeller nozzle 13 and provide attachment points for attachment with the supporting structures.
  • the propeller nozzle is mounted using the necessary bearings to provide the pivotal motion.
  • the deployment mechanism 15 provided for moving the propeller nozzle is shown in further detail in Fig. 4b .
  • the deployment mechanism shown comprises a pivoting arm 151 mounted on the nozzle protrusion 131 that in turn is connected to a linear actuator, such as a hydraulic cylinder 152.
  • a linear actuator such as a hydraulic cylinder 152.
  • a piston 153 of the hydraulic cylinder is moved forward or backwards, dependent on the operation of an associated hydraulic pump, the movement of the piston is transferred to the pivoting arm 151 that facilitates the movement of the propeller nozzle 13 and propeller 14.
  • the propeller nozzle and the propeller is turned about the nozzle pivoting axis 17 that intersecting the propeller nozzle.
  • the pivoting axis extends in a direction perpendicular to a direction of an axis of rotation 142 of the propeller.
  • the direction of the axis of rotation of the propeller 142 which may also be denoted the thrust direction of the propeller, gradually shifts.
  • the nozzle pivoting axis may also extends in a direction substantially transversal to a direction of sailing of the waterborne vessel.
  • Figure 2a and 2b shows how movement of the propeller nozzle from the deployed orientation in Fig. 2a to the retracted orientation in Fig. 2b reduces the draught, D of a vessel comprising one or more propulsion units according to the invention.
  • the lower most point of the propeller nozzle is decisive to the draught of the vessel, where as in Fig. 2b the previous lower most point of the propeller nozzle is now above the lover most point of the vessel and the draught, D is hereby reduced.
  • Fig. 4a and 4b illustrates how the pivoting axis 17 may be offset from the axis of rotation 142 of the propeller by an offset-distance, r.
  • the dimensioning moment of the present propulsion unit may be no more than 1/10.
  • the offset-distance, r may be less than or equal to half the maximum diameter of said propeller.
  • the offset-distance, r may be in the range of 0 to 1.5 meter.
  • the support arrangement for the propulsion unit must be dimensioned with respect to the moment of the propeller nozzle and propeller about the pivoting axis and a small offset-distance, r ensures that the moment is correspondingly low.
  • the pivoting axis 17 is located relatively close to the hull the forces required to pivot the propeller nozzle and propeller is relatively low compared to traditional retractable azimuth thrusters and by being attached to the hull at two points the propulsion unit provides a stiff and strong structure.
  • the arrangement of the attachment points of the propeller nozzle and the direction of the pivoting axis 17 enables the propeller nozzle and propeller to be substantially flush with the shape and angels of the hull in the retracted orientation.
  • the propeller may be rim-driven by a permanent magnet motor.
  • the propulsion unit 10 is shown to comprise stationary permanent magnets 163 arranged along an inner circumference of the propeller nozzle and the propeller 14 is mounted in a propeller housing 161 rotatable arranged inside the propeller nozzle.
  • An outer circumference of the propeller housing is provided with rotating permanent magnets 162, and together the stationary and the rotating permanent magnets provide a bearing for the propeller housing able to absorb both axial and radial loads.
  • the propeller nozzle constitutes a stator 164 comprising windings for providing a rotating magnetic field adapted to rotate the propeller housing comprising permanent magnets thereby constituting a rotor.
  • the propeller housing may be rotated and a permanent magnet motor for driving the propeller is provided.
  • a structure for supporting a propeller shaft is provided inside the propeller nozzle.
  • the propeller shaft is arranged in a centre of the nozzle and the supporting structure extends from the circumference of the propeller nozzle towards the centre to support the propeller shaft.
  • the propeller shaft may be supported at several points along the propeller shaft.
  • the propeller is mounted on the propeller shaft and the drive means is a motor arranged to rotate the propeller shaft.
  • Figure 3a and 3b show how power lines 165 for supplying power to the drive means 16, such as a permanent magnet motor.
  • the power lines are routed from the interior of the hull to the propulsion unit via attachment point of the propeller nozzle protrusions.
  • the power for driving the propeller must be supplied in manner adapted to allow pivoting of the propeller nozzle.
  • Several options are available such as hydraulic, pneumatic as well as electrical drives, where hoses or wiring may be adapted to allow pivoting of the propulsion unit.
  • propulsion units according to embodiments of the invention are shown to be arranged in the rear part of a vessel as a main source of propulsion.
  • propulsion units according to the invention may also be used for providing thrust elsewhere, such as a bow thruster to reduce turning radius or ease berth by providing a transversal trust force.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Actuator (AREA)
  • Toys (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP14181977.1A 2014-08-22 2014-08-22 Gefäß mit einer Antriebseinheit Active EP2987719B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP14181977.1A EP2987719B1 (de) 2014-08-22 2014-08-22 Gefäß mit einer Antriebseinheit
DK14181977.1T DK2987719T3 (en) 2014-08-22 2014-08-22 Vessel comprising a propulsion unit
ES14181977.1T ES2627849T3 (es) 2014-08-22 2014-08-22 Un buque que comprende una unidad de propulsión
KR1020177007863A KR20170047302A (ko) 2014-08-22 2015-08-21 추진 유닛을 포함하는 선박
PCT/EP2015/069257 WO2016026962A1 (en) 2014-08-22 2015-08-21 A vessel comprising a propulsion unit
JP2017510497A JP2017525613A (ja) 2014-08-22 2015-08-21 推進装置を含む船
CN201580045245.9A CN106715260A (zh) 2014-08-22 2015-08-21 包括推进单元的船舶
HK16110058.0A HK1221946A1 (zh) 2014-08-22 2016-08-23 包括推進器單元的船

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14181977.1A EP2987719B1 (de) 2014-08-22 2014-08-22 Gefäß mit einer Antriebseinheit

Publications (2)

Publication Number Publication Date
EP2987719A1 true EP2987719A1 (de) 2016-02-24
EP2987719B1 EP2987719B1 (de) 2017-03-15

Family

ID=51390026

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14181977.1A Active EP2987719B1 (de) 2014-08-22 2014-08-22 Gefäß mit einer Antriebseinheit

Country Status (8)

Country Link
EP (1) EP2987719B1 (de)
JP (1) JP2017525613A (de)
KR (1) KR20170047302A (de)
CN (1) CN106715260A (de)
DK (1) DK2987719T3 (de)
ES (1) ES2627849T3 (de)
HK (1) HK1221946A1 (de)
WO (1) WO2016026962A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107521648B (zh) * 2017-09-12 2023-06-13 怡喆工程设备（上海）有限公司 折叠式全回转侧推装置
KR101994067B1 (ko) * 2019-01-28 2019-06-27 이재동 선박용 추진장치
KR102507441B1 (ko) * 2022-11-16 2023-03-09 주식회사 한국수산해양공학연구소 수중 오염물질의 샘플링 기능이 구비된 수중 드론

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2014929A (en) * 1978-02-27 1979-09-05 Schottel Nederland Bv A vessel with tilting swivelling propeller and a swivelling propeller unit for such a vessel
US4565531A (en) 1984-02-24 1986-01-21 Exxon Research And Engineering Co. Ship propulsion system
US5397255A (en) 1993-03-01 1995-03-14 Schottel-Werft Josef Becker Gmbh & Co., Kg Boat propulsion unit with a propulsion propeller arranged under the boat's bottom
WO1998030440A1 (en) * 1997-01-09 1998-07-16 Ulstein Propeller As Steering and/or propulsion device for a vessel
WO2010013480A1 (en) 2008-08-01 2010-02-04 Yamaha Hatsudoki Kabushiki Kaisha Scooter type vehicle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4827484A (de) * 1971-08-11 1973-04-11
JPS5443800U (de) * 1977-08-31 1979-03-26
DE2928929C2 (de) * 1979-07-18 1982-03-25 Hans 5439 Winnen Trippel Antrieb für schwimmfähige Fahrzeuge, insbesondere Amphibienfahrzeuge
JPH1081299A (ja) * 1996-09-11 1998-03-31 Kawasaki Heavy Ind Ltd 舶用旋回式スラスタ
CN101193793B (zh) * 2005-06-02 2010-09-22 仕弗扣航海系统研究开发有限公司 用于船舶的副驱动装置
KR100983084B1 (ko) * 2010-02-08 2010-09-17 대우조선해양 주식회사 선회식 추진장치를 갖는 해양 구조물
JP5844617B2 (ja) * 2011-11-08 2016-01-20 ヤマハ発動機株式会社 船舶推進装置
JP5872255B2 (ja) * 2011-11-08 2016-03-01 ヤマハ発動機株式会社 船舶推進装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2014929A (en) * 1978-02-27 1979-09-05 Schottel Nederland Bv A vessel with tilting swivelling propeller and a swivelling propeller unit for such a vessel
US4565531A (en) 1984-02-24 1986-01-21 Exxon Research And Engineering Co. Ship propulsion system
US5397255A (en) 1993-03-01 1995-03-14 Schottel-Werft Josef Becker Gmbh & Co., Kg Boat propulsion unit with a propulsion propeller arranged under the boat's bottom
WO1998030440A1 (en) * 1997-01-09 1998-07-16 Ulstein Propeller As Steering and/or propulsion device for a vessel
WO2010013480A1 (en) 2008-08-01 2010-02-04 Yamaha Hatsudoki Kabushiki Kaisha Scooter type vehicle

Also Published As

Publication number Publication date
KR20170047302A (ko) 2017-05-04
CN106715260A (zh) 2017-05-24
EP2987719B1 (de) 2017-03-15
DK2987719T3 (en) 2017-05-22
ES2627849T3 (es) 2017-07-31
WO2016026962A1 (en) 2016-02-25
HK1221946A1 (zh) 2017-06-16
JP2017525613A (ja) 2017-09-07

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