EP2222550B1 - A fin propulsion apparatus - Google Patents

A fin propulsion apparatus Download PDF

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Publication number
EP2222550B1
EP2222550B1 EP08860078A EP08860078A EP2222550B1 EP 2222550 B1 EP2222550 B1 EP 2222550B1 EP 08860078 A EP08860078 A EP 08860078A EP 08860078 A EP08860078 A EP 08860078A EP 2222550 B1 EP2222550 B1 EP 2222550B1
Authority
EP
European Patent Office
Prior art keywords
fin
axle
pitching
crankshaft
propulsion
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.)
Active
Application number
EP08860078A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2222550A1 (en
Inventor
Jacob Govert Vermeiden
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.)
AP Moller Maersk AS
Original Assignee
AP Moller Maersk 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
Application filed by AP Moller Maersk AS filed Critical AP Moller Maersk AS
Priority to PL08860078T priority Critical patent/PL2222550T3/pl
Publication of EP2222550A1 publication Critical patent/EP2222550A1/en
Application granted granted Critical
Publication of EP2222550B1 publication Critical patent/EP2222550B1/en
Priority to CY20121100464T priority patent/CY1112779T1/el
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
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/30—Propulsive elements directly acting on water of non-rotary type
    • B63H1/36—Propulsive elements directly acting on water of non-rotary type swinging sideways, e.g. fishtail type

Definitions

  • the present invention relates to a propulsion system for a maritime vessel wherein the employed means for propulsion includes flapping or oscillating foils or fins.
  • the present invention relates to a propulsion apparatus provided within a hull of a maritime vessel.
  • the apparatus comprising at least one transverse translating propulsion fin being fixed to a fin axle.
  • the means for driving the fin comprising a crankshaft, a pitching mechanism for rotating the fin around an axis of the fin axle, and a heave mechanism for translating the fin in a substantially transverse direction with respect to the axis of the fin axle and the vessel.
  • Propulsion systems have been used for many years especially to propel maritime vessels, and the most used propulsion system today is rotating screw propeller propulsion. Even though the rotating screw propeller propulsion system provides a very reliable and simple construction it does, however, not provide a very high efficiency under normal conditions, and therefore alternative propulsion systems have been suggested in order to overcome this disadvantage.
  • Mechanisms of the kind mentioned in the introduction have previously been suggested as an alternative to rotating screw propeller propulsion in order to gain different advantages such as increased efficiency, and reduced noise.
  • FR 1 330 218 A (BOUIGES) teaches a water bicycle propelled by means of translating fins where the translating and/or heave mechanism incl. the pitching mechanism is mounted on a single crank. The mechanism, which operates under constrained symmetry, is exposed to the environment, and further, the mechanism is partially submerged below the waterline.
  • a boat propulsion system comprising a frame oscillating a vane which has two parallel longitudinal members parallel to the axis of the boat.
  • the vanes move longitudinally and out of phase and their ends are connected by swing links.
  • the forward link has a lever which may be connected to an engine, and the aft link of the parallel longitudinal members is connected to a paddle blade by an intermediate link.
  • the intermediate link and the paddle blade may be flexible or there may be a pivot with a spring allowing the intermediate link to move through an angle.
  • WO 03/026954 A1 published April 3, 2003 (Inocean) suggests a system utilizing a sinusoidal pattern of movement for propulsion or energy recovery.
  • the system comprises a plurality of rigid hull elements arranged in a row and rotatable attached to one another for rotation about parallel axes of rotation across the longitudinal dimension of the row of hull elements.
  • the system further comprises movement devices for rotating the hull elements relative to one another or movement devices for recovery of energy as a result of rotating the hull elements relative to one another.
  • WO 2006/038808 A1 published April 13, 2006 (Clavis Biopropulsion) suggests a device comprising at least one transversely translating fin.
  • the device encompasses actuating and drive means allowing substantially free oscillating motion of the fin.
  • the device operates by means of an impulse, established by drive means, every so many cycles and spring are used to store the pulsating energy provided by the drive means.
  • the purpose of the present invention is to provide a propulsion system that is reliable and simple in its construction while at the same time, provides the option of optimizing the system to higher efficiencies than what is possible by conventional rotating screw propellers.
  • a propulsion apparatus for providing propulsion in a fluid, and especially for propulsion of a maritime vessel.
  • the propulsion system comprises at least one propulsion fin and means for driving the propulsion fin.
  • the means for driving the propulsion fin comprises a crankshaft, a pitching mechanism for rotating the propulsion fin around the axis of the fin axle, and a heave mechanism for translating the propulsion fin in a direction being substantially transverse to a longitudinal axis of the vessel, and in a substantially transverse direction with respect to the axis of the fin axle, and where the crankshaft is both driving the pitching mechanism and the heave mechanism.
  • the heave mechanism and the pitch mechanism are both articulated by means of a crankshaft being connected to the heave and the pitch mechanism by a single crank on the crankshaft, or by separate cranks having substantially the same radius and angular position with respect to the axis of rotation of the crankshaft.
  • the present invention provides a very simple construction for the combined heave and pitching mechanism, and provides on one hand the option of having a construction of relatively few separate components, and on the other hand the option of optimizing the propulsion system to operate with higher efficiencies than what is provided by a conventional propeller propulsion system, due to its relatively symmetrical pattern of movement.
  • the propulsion fin is mounted to a chariot by means of the fin axle allowing the fin axle and the fin to rotate around its axis with respect to the chariot.
  • the chariot is slid ably mounted with respect to the crankshaft so that it can oscillate in a direction to and from the crankshaft.
  • the heave mechanism connects the chariot to a crank on the crankshaft, and the pitching mechanism connects the fin axle to a crank on the crankshaft.
  • the invention is especially advantageous if both the heave mechanism and the pitching mechanism are provided by means of a common push/pull rod being connected at one end to the crank of the drive shaft, and at the other end being rigidly attached and extending substantially transverse to a fin pitching axle being rotatable connected to the chariot, so that the push/pull rod, when the crankshaft rotates, drives the chariot to oscillate to and from the crankshaft, and at the same time drives the fin pitching axle to rotate.
  • the number of separate components are reduced to only very few.
  • the heave mechanism comprises a slot in the chariot, and a crank on the crankshaft being slid able arranged in the slot
  • the pitching mechanism comprises a pitcher rod being connected at one end to the fin axle in a direction substantially transversal to the axis of the fin axle, and being attached at its other end to a crank on the cranksbaft, and where the pitcher rod is telescopic or being connected to either the fin pitching axle or the crank via a slide bushing, so that the pitcher rod compensates for varying distances between the fin axle and the crank, and so that, when the crankshaft rotates, the heave mechanism drives the chariot to oscillate to and from the crankshaft, and at the same time the pitching mechanism drives the fin pitching axle to rotate in an oscillatory manner.
  • the heave forces transferred to the fins are primarily transferred by the heave mechanism and the pitching forces are transferred by the pitching mechanism.
  • the pitching forces are very small in relation to the heave forces, this provides the possibility of a lighter construction of the pitching mechanism.
  • the fin pitching axle and the fin axle is the same, providing a very simple construction comprising relatively few separate components.
  • the pitching mechanism comprises a synchronizing link connecting the fin pitching axle to the fin axle, said synchronising link being arranged for synchronizing the rotation of the fin axle with the rotation of the fin pitching axle.
  • the push/pull rod or the pitcher rod mentioned above may be rigidly connected to the fin pitching axle, but in an advantageous embodiment the connection between the push/pull rod or the pitcher rod and the fin pitching axle comprises means for adjusting the angle between the fin pitching axle and the push/pull rod or the pitcher rod.
  • the connection between the push/pull rod or the pitcher rod and the fin pitching axle comprises means for adjusting the angle between the fin pitching axle and the push/pull rod or the pitcher rod.
  • the fin axle is parallel to the fin pitching axle.
  • the fin axle can preferably be arranged to be substantially transverse to the fin pitching axle, so that it provides the possibility to adapt the design of the drive for specific needs e.g. adapting the design to be placed in a limited space in the hull of a maritime vessel.
  • the propulsion system comprises two or more fins connected to the same fin pitching axle via a single synchronizing link, so that the number of separate components are kept to relatively few.
  • FIG 1 shows a diagrammatic side view of a ship 1 having fins 2 for providing propulsion.
  • fins are well known to be used for a propulsion system in a ship or any other maritime vessel, but also for other propulsion purposes a general description of a fin propulsion system is disclosed especially in the abstract according to US patent no. 5401196 (TRIANTAFYLLOU).
  • Figure 2 shows a diagram of the ship according to figure 1 in a top view, and where two sets of three fins 2 are arranged for providing propulsion to the ship 1.
  • the number of fins 2 and the number of sets of fins 2 may without departing from the present invention be suggested to be adapted to the propulsion needed for specific vessels, but as shown in these drawing it is preferable to arrange the fin in pairs operating in counter phase in order to cancel out transverse forces acting on the ships hull during propulsion.
  • the fins 2 are arranged so as to extend from the ship and into the water, and in the embodiment shown the fins 2 are extending from the ships 1 hull below the waterline 4 through openings 7 ( figure 3 ). In other embodiments however, not shown in these drawings, the fins 2 can alternatively extend from the ship and into the water from anywhere above the waterline 4.
  • the fins 2 are each mounted to a chariot 5 by means of an fin axle 6 that extends from the fin 2 and through the chariot 5, so that each fin 2 is allowed to rotate in the chariot 5 around its fin axle 6.
  • Each chariot 5 is slide ably mounted in the ship's hull 2 by means of a slide allowing the chariot to slide and reciprocate in a direction substantially transverse to the ship's centerline 8.
  • each chariot may accommodate a plurality of fins 2.
  • Figure 3 shows one fin 2 in detail extending from the hull of the ship 1 and into the water.
  • the fin 2 is in this preferred embodiment of the invention arranged below the waterline 4, and therefore the chariot 5 comprises a sealing plate or chariot 5 that seals the opening 7 in the hull.
  • crankshaft 9 rotating around its longitudinal axis 13, and having a crank 10 for driving both a heave drive mechanism and a pitch drive mechanism respectively.
  • the crank 10 can according to the present invention comprise a single crank or two substantially identical cranks with respect to their angular position and radius with respect to the central axis 13 of the crankshaft 9.
  • the different embodiments all further comprise a chariot 5 arranged slide ably in slides 12, and at least one fin 2.
  • the propulsion effect is according to the illustrated embodiments forcing, or propelling, the ship in a direction illustrated by the arrow or mark 17.
  • Figure 4 shows an especially simple and reliable construction of a propulsion system according to the present invention where both the reciprocation 14 of the chariot 5, and the pitching of the fin 2 is provided by means of a single push/pull rod 15 being connected at one end to the crank 10 on the crankshaft 9, and at the other end being rigidly connected to the fin axle 6
  • the push/pull rod 15 will act on the chariot 5 similar to a piston rod in a traditional combustion engine, and at the same time turn the fin 2 via its fin axle 6.
  • the heave drive mechanism and the pitch drive mechanism are both driven by the push/pull rod.
  • Figure 5 shows an alternative embodiment of the present invention where a pitching rod 18 is arranged instead of the push/pull rod according to figure 4 .
  • the pitching rod 18 is mounted to the crank 10 via a slide connection 19 allowing the pitching rod 18 to slide in the slide connection 19 when the crankshaft 9 and the crank 10 turn.
  • the pitching rod 18 only drives the pitching drive mechanism and thereby the pitching of the fin 2 via its rigid connection to the fin axle 6.
  • the heave drive mechanism is in this embodiment provided by a slot 21 being slide ably connected to the crank 10, so that when the crankshaft 9 turns, the chariot 5 reciprocates as shown by arrow 14.
  • Figure 6 to 8 all shows the same principal drive mechanism as shown in figure 5 , but in these alternative embodiments the position of the fin 2 and/or number of fins 2 can be altered without changing the design of the heave and pitch drive mechanisms. This is obtained by adding synchronizing links 22, 23 to the pitching drive mechanism, so that the pitching rod 18 being rigidly mounted to the pitching axle 20, forces the synchronizing link 22, 23 to turn the fin axle 6 and thereby the fin 2.
  • Figure 9 shows a further alternative embodiment of the present invention where the angular heave and pitch drives are the same as shown in figure 4 , but where the angle between the fin 2 and the push/pull rod 15 can be adjusted by means of a linear motor 24 e.g. a hydraulic piston being arranged between the push/pull rod 15 and a pitching rod 25 being rigidly connected to the fin axle 6.
  • a linear motor 24 e.g. a hydraulic piston being arranged between the push/pull rod 15 and a pitching rod 25 being rigidly connected to the fin axle 6.
  • a pitcher rod 25 instead of push/pull rod 15.
  • the angle between the fin or fins 2 and the pitcher rod or push pull rod can be optimized for specific purposes, and especially so that the fin or fins 2 is positioned in parallel to the motion of the chariot 5, so that no significant propulsion effect is achieved.
  • Figure 10 shows another alternative embodiment of the present invention where a gearing 26 is arranged between the fin axle 6 and the fin pitching axle 20 allowing the fin 2 to extend at an angle with respect to the fin pitching axle 20.
  • a gearing can be made in various embodiments figure 10 only discloses the gearing as a closed gearbox.
  • Figure 10 shows that the fin axle 6 is arranged transversally to the fin pitching axle 20, but it is evident that gearings can be arranged for providing other angles between the fin axle 6 and the fin pitching axle 20.
  • the direction of speed 17 is different than the one shown on the figures 4 to 9 .
  • the present invention is described with regard to its propulsion effect. It is however evident to the skilled person that any fin propulsion system, and thereby also the fin propulsion system according to this invention, could also be used for generating power. This is because, at a given flow/ship speed, the mechanism will behave as a generator below a critical crankshaft speed, and as a propeller above that critical crankshaft speed. This provides the possibility to generate power from the system.
  • heave direction may be any direction, including horizontal (such as fish) and vertical (such as dolphins) as long as it is at a substantial angle to the main intended direction of thrust, perpendicular being slightly the best.
  • the pitching axis should have a substantial angle with both mentioned directions, perpendicular being slightly the best.

Landscapes

  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Transmission Devices (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Vehicle Body Suspensions (AREA)
  • Transplanting Machines (AREA)
  • Soil Working Implements (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Earth Drilling (AREA)
  • Processing Of Meat And Fish (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • De-Stacking Of Articles (AREA)
EP08860078A 2007-12-10 2008-12-09 A fin propulsion apparatus Active EP2222550B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL08860078T PL2222550T3 (pl) 2007-12-10 2008-12-09 Płetwowe urządzenie napędowe
CY20121100464T CY1112779T1 (el) 2007-12-10 2012-05-21 Μια διαταξη προωσης με πτερυγιο

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DKPA200701756 2007-12-10
US1316907P 2007-12-12 2007-12-12
PCT/EP2008/067127 WO2009074580A1 (en) 2007-12-10 2008-12-09 A fin propulsion apparatus

Publications (2)

Publication Number Publication Date
EP2222550A1 EP2222550A1 (en) 2010-09-01
EP2222550B1 true EP2222550B1 (en) 2012-02-22

Family

ID=39682488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08860078A Active EP2222550B1 (en) 2007-12-10 2008-12-09 A fin propulsion apparatus

Country Status (16)

Country Link
US (1) US20100291814A1 (ko)
EP (1) EP2222550B1 (ko)
JP (1) JP2011506173A (ko)
KR (1) KR20100098684A (ko)
CN (1) CN101909984A (ko)
AT (1) ATE546351T1 (ko)
BR (1) BRPI0820940A2 (ko)
CY (1) CY1112779T1 (ko)
DK (1) DK2222550T3 (ko)
ES (1) ES2387654T3 (ko)
HR (1) HRP20120428T1 (ko)
PL (1) PL2222550T3 (ko)
PT (1) PT2222550E (ko)
RU (1) RU2482012C2 (ko)
UA (1) UA98185C2 (ko)
WO (1) WO2009074580A1 (ko)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013014232A1 (en) 2011-07-27 2013-01-31 A.P. Møller-Mærsk A/S Driving and guiding method for marine propulsion with fins on an endless- path
WO2013014061A1 (en) 2011-07-27 2013-01-31 A.P. Møller - Mærsk A/S Sealing for fin propulsion with endless path
US8784148B2 (en) 2012-12-14 2014-07-22 Brice Thouret Propulsion device for use with a fluid
WO2015196276A1 (en) * 2014-06-25 2015-12-30 Kassianoff Edouard Pulsed locomotor
RU2631742C1 (ru) * 2013-07-11 2017-09-26 Эдуард КАССЬЯНОФФ Колеблющийся движитель
BR112016012895B1 (pt) * 2013-12-04 2023-02-23 Martin Garthwaite Sistema de propulsão de embarcação à base de barbatana
US9676459B1 (en) * 2014-11-17 2017-06-13 Joseph D Maresh Oscillating fin propulsion apparatus
CN105882960A (zh) * 2016-03-16 2016-08-24 陈楠 旋转翼
CN107310705A (zh) * 2017-06-21 2017-11-03 桂林电子科技大学 一种仿腔棘鱼的水下机器人
EP3428055B1 (fr) 2017-07-11 2020-08-26 Aetc Sapphire Procédé et dispositif de détermination de la direction et de l'amplitude d'un effort appliqué sur une nacelle de propulsion pour bateau
FR3113643B1 (fr) 2020-08-28 2022-09-09 Francis Rey Dispositif d’entrainement en battement d’un plan porteur
RU204567U1 (ru) * 2020-09-15 2021-05-31 Виктор Васильевич Редькин Плавниковое движительно-рулевое устройство с гидрогенератором
CN113716004A (zh) * 2021-09-10 2021-11-30 哈尔滨工程大学 一种新型仿生螺旋桨
CN114439898B (zh) * 2022-01-12 2023-12-19 哈尔滨工程大学 一种波动鳍无齿系传动机构及系统
SE2251585A1 (en) * 2022-12-28 2024-06-29 Dolprop Ind Ab Drive mechanism for a fluke drive and method for installing the same

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
US3032001A (en) * 1960-08-17 1962-05-01 Gadget Of The Month Club Inc Pedally operable boat propulsion apparatus
FR1330218A (fr) 1962-05-07 1963-06-21 Dispositif de propulsion nautique
US4139171A (en) * 1976-07-16 1979-02-13 Harris Jeremy M Articulated wing ornithopter
DE2849027A1 (de) 1978-11-11 1980-05-14 Helmut Kraus Universal-flossenantrieb
SU1245501A1 (ru) * 1984-06-20 1986-07-23 Ustinov Sergej M Движительно-рулевой комплекс плавникового движител С.М.Устинова
US4887540A (en) * 1988-06-30 1989-12-19 Gongwer Calvin A Watercraft propulsion system
US5021015A (en) * 1990-02-20 1991-06-04 Wang June Chi Propulsion mechanism for a boat
US5401196A (en) 1993-11-18 1995-03-28 Massachusetts Institute Of Technology Propulsion mechanism employing flapping foils
JPH08150997A (ja) * 1994-11-29 1996-06-11 Mitsubishi Heavy Ind Ltd 水中ロボットの振動翼式推進装置
JPH11321785A (ja) * 1998-05-14 1999-11-24 Ishikawajima Harima Heavy Ind Co Ltd 揺動式推進装置
NO317623B1 (no) 2001-09-25 2004-11-22 Inocean As System for utnyttelse av sinusformet bevegelsesmonster
US6877692B2 (en) * 2003-03-05 2005-04-12 National Research Council Of Canada Oscillating foil propulsion system
DE102004004236A1 (de) 2004-01-27 2005-09-08 Kludszuweit, Alfred Antriebsgetriebe für Flossenantriebe von Schwimmkörpern
EP1814780B1 (en) 2004-10-05 2011-04-27 Clavis Holding AS Device for moving an object in relation to a fluid
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US7300324B2 (en) * 2006-03-07 2007-11-27 Hydro-Blade, Inc. Manual propulsion mechanism

Also Published As

Publication number Publication date
CY1112779T1 (el) 2016-02-10
RU2482012C2 (ru) 2013-05-20
ATE546351T1 (de) 2012-03-15
WO2009074580A1 (en) 2009-06-18
PL2222550T3 (pl) 2012-10-31
DK2222550T3 (da) 2012-06-04
HRP20120428T1 (hr) 2012-08-31
RU2010128532A (ru) 2012-01-20
CN101909984A (zh) 2010-12-08
US20100291814A1 (en) 2010-11-18
BRPI0820940A2 (pt) 2015-06-30
JP2011506173A (ja) 2011-03-03
PT2222550E (pt) 2012-05-29
ES2387654T3 (es) 2012-09-27
KR20100098684A (ko) 2010-09-08
EP2222550A1 (en) 2010-09-01
UA98185C2 (ru) 2012-04-25

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