EP4331970A1 - Behälter - Google Patents

Behälter Download PDF

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Publication number
EP4331970A1
EP4331970A1 EP22192879.9A EP22192879A EP4331970A1 EP 4331970 A1 EP4331970 A1 EP 4331970A1 EP 22192879 A EP22192879 A EP 22192879A EP 4331970 A1 EP4331970 A1 EP 4331970A1
Authority
EP
European Patent Office
Prior art keywords
rotor part
vessel
rotor
hull
rotation
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.)
Pending
Application number
EP22192879.9A
Other languages
English (en)
French (fr)
Inventor
Jan Alexander Keuning
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.)
Stichting Bijlboegfonds
Original Assignee
Stichting Bijlboegfonds
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
Application filed by Stichting Bijlboegfonds filed Critical Stichting Bijlboegfonds
Priority to EP22192879.9A priority Critical patent/EP4331970A1/de
Publication of EP4331970A1 publication Critical patent/EP4331970A1/de
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/02—Marine propulsion provided directly by wind power using Magnus effect

Definitions

  • the present invention relates to a vessel, comprising a hull and a Magnus rotor which is mounted to the hull and rotatable with respect to the hull about an upwardly directed axis of rotation, wherein the Magnus rotor has a lower rotor part and an upper rotor part.
  • Such a vessel is known from FR 2 948 094 .
  • An advantage of the known vessel is that the upper rotor part can be extended and lowered with respect to the lower rotor part such that the total height of the Magnus rotor can be varied. This provides the opportunity to increase the generated propulsion force in case of a weak wind and to decrease propulsion force in case of heavy wind.
  • An object of the invention is to provide an improved vessel.
  • the vessel according to the invention which is characterized in that the upper rotor part and the lower rotor part are drivable with respect to the hull at different rotational velocities and/or in opposite rotational directions about the axis of rotation.
  • the invention provides the opportunity to control the torque on the hull caused by the Magnus rotor under operating conditions.
  • the torque caused by the lower rotor part can be compensated by a counter torque caused by the upper rotor part by means of rotating the upper rotor part in opposite direction of the lower rotor part.
  • the propulsion force generated by the lower rotor part is counteracted by a counter force generated by the upper rotor part, but the counter force may be relatively low to create a relatively high counter torque since the distance from the hull where the counter force is exerted is relatively large.
  • the upper rotor part and the lower rotor part may be drivable independently from each other.
  • the upper rotor part and the lower rotor part are moveable with respect to each other along the axis of rotation, since this provides the opportunity to control the height from the hull where a counter force generated by the upper rotor part acts, hence affecting the level of a counter torque on the hull.
  • the upper rotor part and the lower rotor part may be telescopically connected to each other.
  • the upper rotor part may have a smaller diameter than the lower rotor part.
  • an oblong lower vane and an oblong upper vane are located, which lower and upper vanes extend parallel to the axis of rotation.
  • the upper and lower vanes define a location where streamlines detach from rotor surfaces of the respective upper and lower rotor parts.
  • the lower and upper vanes may be movable in circumferential direction about the upper and lower rotor parts, respectively, in order to adapt desired locations of streamline detachments under operating conditions.
  • the Magnus rotor has one or more additional rotor parts which extend or are extendable above the upper rotor part and are drivable with respect to the upper rotor part at different rotational velocities and/or in opposite rotational directions about the axis of rotation. This provides more flexibility to control the propulsion force of the vessel.
  • Fig. 1 shows an embodiment of a vessel 1 according to the invention.
  • the vessel 1 comprises a hull 2 including a deck 3 and four Magnus rotors 4 which are mounted to the hull 2 at four corners thereof.
  • the Magnus rotors 4 are rotatable with respect to the hull 2 about respective axes of rotation 5 which extend upwardly from the hull 2. Under operating conditions the Magnus rotors 4 provide additional drive force on the vessel 1 by using the Magnus effect.
  • each of the Magnus rotors 4 has an upper rotor part 4a and a lower rotor part 4b.
  • the upper rotor part 4a has a smaller diameter than the lower rotor part 4b. They are telescopically connected to each other, such that the upper rotor part 4a is moveable with respect to the lower rotor part 4b along the axis of rotation 5. This is indicated by the double-headed arrow in Fig. 2 .
  • the upper rotor part 4a and the lower rotor part 4b are drivable with respect to the hull 2 independently from each other. They are drivable with respect to each other in opposite directions and/or at different rotational velocities about the axis of rotation. It is also conceivable that a common driving unit drives both the upper rotor part 4a and the lower rotor part 4b through a transmission.
  • Fig. 2 shows that next to the upper rotor part 4a and the lower rotor part 4b oblong upper and lower vanes 6a, 6b, respectively, are located.
  • the upper and lower vanes 6a, 6b extend substantially parallel to the axis of rotation 5 and have more or less the same lengths as the upper and lower rotor parts 4a, 4b, respectively.
  • the upper and lower vanes 6a, 6b are rotatable about the axis of rotation 5 of the Magnus rotor 4 such that an appropriate static position with respect to the hull 2 along the circumference of the Magnus rotor 4 can be selected, dependent on the actual wind direction under operating conditions.
  • the upper and lower vanes 6a, 6b are also telescopically connected to each other; this means that they extend at the same rotational position about the axis of rotation 5.
  • the upper and lower vanes 6a, 6b may be separate from each other such that they may have different rotational positions about the axis of rotation 5.
  • the location of the upper and lower vanes 6a, 6b with respect to the hull 2 is selected on the basis of the actual wind direction. This position can be adjusted automatically such that the upper and lower vanes 6a, 6b are positioned at a side of the upper and lower rotor parts 4a, 4b which is directed in substantially the same direction as the wind direction.
  • the presence of the upper and lower vanes 6a, 6b define a fixed location where streamlines become detached from the rotor surfaces of the upper and lower rotor parts 4a, 4b. This appears to minimize undesired vibrations of the Magnus rotor 4 and improve the ratio between lift and drag coefficient of the Magnus rotor 4.
  • Rotation of the lower rotor part 4b generates a propulsion force which also generates a torque on the hull 2 of the vessel 1.
  • the torque can be reduced by a counter force which is generated by the upper rotor part 4a which counter force acts on the upper rotor part 4a at a larger distance from the hull 2 than the propulsion force on the lower rotor part 4b.
  • the counter force generated by the upper rotor part 4a which is lower than the propulsion force generated by the lower rotor part 4b may create a relatively large counter torque due to the larger distance from the hull 2 where the counter force acts. Consequently, a counter torque can be generated without significantly limiting the propulsion force.
  • the Magnus rotor has one or more additional rotor parts which extend or are extendable above the upper rotor part and are drivable with respect to the upper rotor part at different rotational velocities and/or in opposite rotational directions about the axis of rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)
EP22192879.9A 2022-08-30 2022-08-30 Behälter Pending EP4331970A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22192879.9A EP4331970A1 (de) 2022-08-30 2022-08-30 Behälter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22192879.9A EP4331970A1 (de) 2022-08-30 2022-08-30 Behälter

Publications (1)

Publication Number Publication Date
EP4331970A1 true EP4331970A1 (de) 2024-03-06

Family

ID=83151618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22192879.9A Pending EP4331970A1 (de) 2022-08-30 2022-08-30 Behälter

Country Status (1)

Country Link
EP (1) EP4331970A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19952460A1 (de) * 1999-10-29 2001-05-03 Helmut Schiller Windkraftanlage
FR2948094A1 (fr) 2009-07-17 2011-01-21 Jean Louis Ligne Structure portante ou aeromotrice a effet magnus
US20130032070A1 (en) * 2010-02-15 2013-02-07 Winkler Joern Paul Vessel comprising a stowable magnus-effect rotor
CN113060266A (zh) * 2021-04-02 2021-07-02 中国船舶科学研究中心 一种船用导流式风力助推设备
CN113815827A (zh) * 2021-09-23 2021-12-21 中国船舶科学研究中心 一种风力助推转子结构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19952460A1 (de) * 1999-10-29 2001-05-03 Helmut Schiller Windkraftanlage
FR2948094A1 (fr) 2009-07-17 2011-01-21 Jean Louis Ligne Structure portante ou aeromotrice a effet magnus
US20130032070A1 (en) * 2010-02-15 2013-02-07 Winkler Joern Paul Vessel comprising a stowable magnus-effect rotor
CN113060266A (zh) * 2021-04-02 2021-07-02 中国船舶科学研究中心 一种船用导流式风力助推设备
CN113815827A (zh) * 2021-09-23 2021-12-21 中国船舶科学研究中心 一种风力助推转子结构

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