EP2443030B1 - Système de propulsion et de direction de bateau avec rotors totalement immergés - Google Patents

Système de propulsion et de direction de bateau avec rotors totalement immergés Download PDF

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Publication number
EP2443030B1
EP2443030B1 EP09787758.3A EP09787758A EP2443030B1 EP 2443030 B1 EP2443030 B1 EP 2443030B1 EP 09787758 A EP09787758 A EP 09787758A EP 2443030 B1 EP2443030 B1 EP 2443030B1
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EP
European Patent Office
Prior art keywords
boat
impeller
steering system
wheel
toothed
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.)
Not-in-force
Application number
EP09787758.3A
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German (de)
English (en)
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EP2443030A1 (fr
Inventor
Rodolfo Cicatelli
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Individual
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H16/00—Marine propulsion by muscle power
    • B63H16/08—Other apparatus for converting muscle power into propulsive effort
    • B63H16/18—Other apparatus for converting muscle power into propulsive effort using sliding or pivoting handle or pedal, i.e. the motive force being transmitted to a propelling means by means of a lever operated by the hand or foot of the occupant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
    • B63H11/107—Direction control of propulsive fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H2011/008—Arrangements of two or more jet units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
    • B63H2011/087—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with radial flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H16/00—Marine propulsion by muscle power
    • B63H16/08—Other apparatus for converting muscle power into propulsive effort
    • B63H16/18—Other apparatus for converting muscle power into propulsive effort using sliding or pivoting handle or pedal, i.e. the motive force being transmitted to a propelling means by means of a lever operated by the hand or foot of the occupant
    • B63H2016/185—Other apparatus for converting muscle power into propulsive effort using sliding or pivoting handle or pedal, i.e. the motive force being transmitted to a propelling means by means of a lever operated by the hand or foot of the occupant comprising means for transforming oscillating movement into rotary movement, e.g. for driving propeller shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H2023/0258—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing comprising gearings with variable gear ratio, other than reversing drives or trolling drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H23/06—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit
    • B63H2023/062—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit comprising means for simultaneously driving two or more main transmitting elements, e.g. drive shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H23/06—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit
    • B63H2023/062—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit comprising means for simultaneously driving two or more main transmitting elements, e.g. drive shafts
    • B63H2023/065—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit comprising means for simultaneously driving two or more main transmitting elements, e.g. drive shafts having means for differentially varying the speed of the main transmitting elements, e.g. of the drive shafts
    • 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
    • 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
    • B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
    • 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
    • B63H25/46—Steering or dynamic anchoring by jets or by rudders carrying jets

Definitions

  • This invention relates to a propulsion system for boat where the thrust is provided by the rotation of two rotors arranged in such a way as to be fully submerged and to remain underneath the hull lines.
  • propulsion devices are known in the nautical field, as they are designed to cause boats to move forward, such as oars, paddles, rotors driven by the upper and lower limbs, motors with submerged propellers, motors that cause the rotation of paddles, water-jet propellers, air-screw propellers as those of hovercrafts, and sails that are known to take advantage of the power of the wind.
  • propulsion devices In the field of small pleasure boats, the most common means of propulsion are oars, leg- operated rotors that are vertically semi-submerged, both internal combustion and electric outboard motors and sails.
  • thrusting and/or steering elements such as oars, propellers, rotor paddles and rudders that are external to the hull lines, so that they are often a problem when getting by shallow water and a potential risk, particularly to bathers.
  • propellers are known to be dangerous, as they may hurt bathers, entangle fishing nets or the mooring lines of other boats in ports and, at the same time, they limit the possibility of getting by shallow water or reaching shore.
  • the subject matter of this invention is a boat propulsion and steering system with fully submerged rotors that solves all the problems referred to above, allowing both the forward movement of the boat and its steering.
  • the system proves particularly suitable for being installed on small boats.
  • US2004/0002282 discloses a turbine assembly comprising a turbine housing defining an impeller cavity and including a forward opening and a rearward opening; a directional control valve positioned in the impeller cavity and having a valve opening in a sidewall thereof, an impeller positioned in the directional control valve, a cover plate with openings.
  • the present invention provides a boat propulsion and steering system as defined by the features of claim 1, comprising a pair of fully submerged rotors, a hull of a boat and means of motion generation of the fully submerged rotors.
  • the submerged rotors are each made by a propeller.
  • Each propeller comprises an horizontal impeller with reverse blading; a vertical rotation axis of adequate length to connect each horizontal impeller (2) to means suitable for transmitting the force required for the rotation of the impeller.
  • a housing for each impeller is obtained in the hull of the boat, delimited by an upper flat surface totally closed; a cylindrical lateral surface open towards the outer lower area of the boat-transom; a flat lower surface, having a center and corresponding to the bottom surface of the hull and delimited by the boat centerline and a line within the point of rotation of the vertical axis of the impeller.
  • the blades (2) of said horizontal impeller are in reverse relationship, the flat lower surface of the housing is open at the center and in a sector where the blading operates in agreement with the direction of movement of the boat, outer lateral zone, and said flat lower surface of the housing is closed in a sector (8) where the blading rotates in the direction opposite to the direction of movement, lateral zone towards the boat center line, and respectively the open and closed sectors of the flat lower surface of the housing, the open sectors of the flat lower surface of the housing and of the cylindrical lateral surface (7a) towards the outer lower area of the boat-transom, and the horizontal impeller with reverse blading (2) are configured as shown in figures 1 , 3 and 5 .
  • the levers (9) that, as previously pointed out, allow the operation of the impellers (2), may be subjected to a 180° rotation at their knee (9a) so that they may be in an advanced position towards the head or towards the stern, in relation to the reference of the person operating them and the position the latter needs to take when rowing owing to the loads on board.
  • the impellers (2) may also be driven by electric or internal combustion engines with simple controls that permit to change their rotation speed; in so doing, both the speed of the boat and its direction are affected.
  • the housings where the impellers (2) rotate are partly closed (6, 8). In these areas, the bladings tangentially accelerate the water flow and then discharge it in the open sections (7a); the central areas of the impellers (2), free and relatively under reduced pressure, accommodate and draw in the water that slides under the hull.
  • the impellers (2) allow steering the boat causing it to move ahead or to veer to the right or to the left by simply changing the speed of one or the other impeller (2) with excellent handling qualities due also to the fact that in the areas where the impeller bladings are close to leaving the free sectors (7a) in order to enter the closed ones (6, 8), the reaction thrusts on the blades are angled backwards, towards the center line of the hull.
  • the reaction thrusts on the blades are angled backwards, towards the center line of the hull.
  • a further advantage is represented by the fact that, as previously pointed out, the axes (3) of the impellers (2) are positioned vertically and extend well over the maximum water-line and, therefore, require no sealing device, with advantages that are by no means secondary.
  • the impellers are allowed to rotate by means of hand-operated or motor-driven motion generators that are independent for the two submerged impellers.
  • a few application solutions where the impellers are driven by a single motion generator and are connected with different solutions to the motion generator and among themselves are described and illustrated below.
  • the rotors with the axes of the two submerged impellers, 25 and 26, are rigidly connected to the pinions 17 and 18 that, in their turn, mesh with the wheels 19 and 20; hence, the impellers rotate in the opposite direction at the same speed; the motion may be exerted by any motor connected in a preferred point of the kinematic chain 17, 19, 20, 18; furthermore, a control for the temporary release of pinion 17 from axis 25 and pinion 18 from axis 26 is provided with a view to making the most of the thrust of one of the impellers for steering the boat.
  • Figure 13 shows the solution where the impellers are caused to rotate by muscular force preferably of the legs, for example, by means of oscillating pedals, with to-and-fro movements, where the wheels 19 and 20 alternately receive the motion through two free-wheel couplings with the projecting wheels 21 and 22 driven by the toothed belt 24 that moves with the to-and-fro movement exerted by the pedals.
  • the wheels 21 and 22, always with an alternate free-wheel coupling with the wheels 19, 20, are toothed and mesh with wheel 23 that has a dual rotation direction in order to obtain the continuous rotations of the axes 25 and 26 from the alternate motion of traction of the belt 24 working on the projecting wheel 27, rigidly connected to the gear wheel 23.
  • a change-speed gear may be obtained by replacing wheel 27 with a series of wheels of different diameter, as it happens for instance with the pinions of the back hub of a bicycle.
  • wheel 27 may be obtained having recourse to two racks tangent to the transverse diameter of wheel 27, which is a toothed wheel. Even in this case, wheel 27 may be made by a series of wheels having different diameter on the outer edges of which the racks work to obtain the speed change.
  • the impellers - rather than having areas for the outflow towards the two external sides of the transom, as shown in figure 3 - shall have a single area of central thrust with the bladings and the reverse direction of rotation, and the bottom opening of the impeller casings shall be modified, as clearly shown in figure 15 .
  • flow diverters may be used even within the impellers outflow areas with no obstruction outside the hull lines.

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  • 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)

Claims (8)

  1. Système de propulsion et de direction de bateau, comprenant une paire de turbines totalement immergées, une coque de bateau et un moyen de mouvement des turbines totalement immergées, dans lequel :
    - les turbines immergées sont chacune composées d'un propulseur (1) ;
    - chaque propulseur (1) comprend :
    o Une roue à aubes horizontale avec des aubes inversées (2) ;
    o Un axe de rotation vertical (3) d'une longueur adéquate pour connecter chaque roue à aubes horizontale (2) au moyen approprié pour transmettre la force requise pour la rotation de la roue à aubes (2) ;
    - un logement pour chaque roue à aubes (2) prévu dans la coque du bateau, délimité par
    o Une surface plane supérieure (6) totalement fermée ;
    o Une surface latérale cylindrique (7) ouverte vers la zone basse externe du tableau arrière du bateau (7a) ;
    o Une surface plane inférieure, ayant une zone centrale et correspondante à la surface de fond de la coque et délimitée par l'axe médian du bateau et par une ligne à l'intérieur du point de rotation de l'axe vertical de la roue à aubes (2)
    - les aubes (2) de ladite roue à aubes horizontale sont en relation inverse
    le système caractérisé en ce que
    - ladite surface plane inférieure du logement est totalement ouverte dans la zone centrale et dans un secteur où les aubes tournent selon la direction du mouvement du bateau, la zone latérale externe, et ladite surface plane inférieure du logement est totalement fermée dans un secteur (8) où les aubes tournent dans la direction opposée à la direction du mouvement, la zone latérale située vers l'axe médian du bateau.
  2. Système de propulsion et de direction de bateau selon la revendication 1, caractérisé en ce que le dispositif de génération de mouvement des roues à aubes comprend un levier coudé (9) pivotant en sa partie basse en (11) dans la partie interne du flanc du bateau ; une barre (10) articulée au levier (9) ; un support (12), articulé à la barre (10) pivotant par rapport à la structure du bateau au moyen d'un axe (16), qui est formé sur deux niveaux avec deux secteurs circulaires dentés décrits par des rayons différents ; le secteur denté supérieur (13) a une denture interne et est joint par des rayons d'une longueur supérieure à celui du secteur denté inférieur (14) qui a une denture externe ; chaque secteur circulaire denté s'engrène avec une couronne dentée (4-5) à embrayage à roue libre sur l'axe de rotation (3) couplé avec la roue à aubes (2) dont la direction de rotation reste constante que le levier (9) soit poussé ou tiré.
  3. Système de propulsion et de direction de bateau selon la revendication 2, caractérisé en ce que les leviers coudés (9) peuvent être assujettis à une rotation de 180° à leur articulation (9a) de manière à avoir leur poignée dans une position avancée vers l'avant du bateau ou dans une position arrière vers la poupe du bateau.
  4. Système de propulsion et de direction de bateau selon la revendication 1, caractérisé en ce qu'un seul moyen de génération de mouvement est présent et que les axes (25 et 26) des deux roues à aubes immergées sont connectés aux pignons (17 et 18) qui s'engrènent avec les roues (19 et 20), les roues à aubes tournent en sens inverse à la même vitesse et le générateur de mouvement peut fonctionner n'importe où sur la chaîne cinétique (17, 19, 20, 18) ; une régulation de la relâche temporaire du pignon (17) de l'axe (25) et du pignon (18) de l'axe (26) permet de veiller à la rotation d'une seule des deux roues à aubes et, de ce fait, de diriger le bateau.
  5. Système de propulsion et de direction de bateau selon la revendication 4, caractérisé en ce que le générateur de mouvement est un système avec des pédales oscillantes et les roues (19) et (20) reçoivent alternativement le mouvement au travers de deux roues libres couplées avec les saillies des roues (21) et (22) entrainées par la courroie dentée (24) qui reçoit le mouvement de va et vient.
  6. Système de propulsion et de direction de bateau selon les revendications 4 et 5, caractérisé en ce que les roues (21) et (22) sont dentées et s'engrènent avec la roue dentée (23) qui a un double sens de rotation de manière à obtenir les rotations continues des axes (25) et (26) à partir du mouvement alterné de la traction de la courroie (24) travaillant sur la saillie de la roue (27), connectée de façon rigide à la roue dentée (23).
  7. Système de propulsion et de direction de bateau selon la revendication 5, caractérisé en ce que la roue (27) est composée d'une série de roues ayant différents diamètres permettant le changement de vitesse.
  8. Système de propulsion et de direction de bateau selon la revendication 6, caractérisé en ce que la roue (27) est une roue dentée et est entrainée par deux supports tangents au diamètre transverse de la roue (27).
EP09787758.3A 2009-06-19 2009-06-19 Système de propulsion et de direction de bateau avec rotors totalement immergés Not-in-force EP2443030B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2009/000273 WO2010146610A1 (fr) 2009-06-19 2009-06-19 Système de propulsion et de direction de bateau avec rotors totalement immergés

Publications (2)

Publication Number Publication Date
EP2443030A1 EP2443030A1 (fr) 2012-04-25
EP2443030B1 true EP2443030B1 (fr) 2016-04-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09787758.3A Not-in-force EP2443030B1 (fr) 2009-06-19 2009-06-19 Système de propulsion et de direction de bateau avec rotors totalement immergés

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EP (1) EP2443030B1 (fr)
WO (1) WO2010146610A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2013228031B2 (en) * 2012-09-17 2018-01-04 Bruce William James Mcmullen A Manual Thrust Device Propulsion System for a Water Craft
CN113002748B (zh) * 2021-03-19 2022-06-10 江苏科技大学 排水驱动船
GB2625245A (en) * 2022-11-09 2024-06-19 Rogus Krzysztof A personal watercraft

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR672648A (fr) 1928-07-11 1930-01-04 Propulseur hydraulique pour bateaux
DE1027092B (de) 1956-06-30 1958-03-27 Krantz H Fa Schaufelrad mit Steuergehaeuse fuer den Antrieb von Schiffen
US3889623A (en) 1974-01-31 1975-06-17 Robert W Arnold Jet propulsion unit for boats
CA1226593A (fr) 1983-09-07 1987-09-08 Dunlop Olympic Limited Appareil et methode suivant a separer et a transporter des morceaux de tissu
DE3800560A1 (de) * 1988-01-12 1989-07-20 Schottel Werft Wasserstrahlantrieb fuer flachgehende schiffe
US5875627A (en) * 1995-06-07 1999-03-02 Jeswine; William W. Fluid propulsion system for accelerating and directionally controlling a fluid
US6729931B2 (en) 2002-05-23 2004-05-04 New Bright Industrial Co., Ltd. Turbine mechanism with directional control for toy watercraft

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EP2443030A1 (fr) 2012-04-25
WO2010146610A1 (fr) 2010-12-23

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