EP2443030A1 - 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

Info

Publication number
EP2443030A1
EP2443030A1 EP09787758A EP09787758A EP2443030A1 EP 2443030 A1 EP2443030 A1 EP 2443030A1 EP 09787758 A EP09787758 A EP 09787758A EP 09787758 A EP09787758 A EP 09787758A EP 2443030 A1 EP2443030 A1 EP 2443030A1
Authority
EP
European Patent Office
Prior art keywords
boat
steering system
fully submerged
fact
boat 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.)
Granted
Application number
EP09787758A
Other languages
German (de)
English (en)
Other versions
EP2443030B1 (fr
Inventor
Rodolfo Cicatelli
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2443030A1 publication Critical patent/EP2443030A1/fr
Application granted granted Critical
Publication of EP2443030B1 publication Critical patent/EP2443030B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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.
  • the system consists of a pair of propellers, which are symmetrical with respect to the boat center line, fully submerged, inside the hull lines lying within the bottom surface of the hull, or inside the surfaces if it is V-shaped, close to the transom.
  • Each propeller is made up of a horizontal impeller fulcrated on the boat by means of a vertical axis.
  • the impeller rotates in a cylindrical casing the upper flat surface of which is closed; the cylindrical lateral surface is open towards the outer lower area of the transom; the lower surface corresponding to the bottom surface of the hull is open at the center and in the sector where the blading operates in agreement with the direction of movement and, therefore, in the outer lateral area, while it is closed in the sector where the blading rotates in the direction opposite to the direction of movement and, therefore, in the lateral area towards the boat center line.
  • Each impeller is rotated by suitable means that may be both hand-operated and engine-driven.
  • Figure 1 shows an upper three-quarter axonometric view of the propulsion system installed within a boat that may be operated by means of levers
  • Figure 2 shows a partially sectioned lateral view of the propulsion system installed within a boat that may be operated by means of levers
  • Figure 3 shows a partially sectioned schematic view of the stern of a boat and of the propulsion system viewed from below
  • Figure 4 shows a partially sectioned schematic view of the stern of a boat and of the propulsion system
  • Figure 5 shows an axonometric view from below of the stern of a boat with the propulsion system installed .
  • Figure 6 shows a three-quarter view from above of the propulsion system installed on a boat that may be operated by means of two levers
  • Figure 7 shows an axonometric back view of the propulsion system operated by means of two levers
  • Figure 8 shows ah axonometric front view of the propulsion system operated by means of two levers
  • Figure 9 shows a three-quarter axonometric back view of a single rotor and the operating lever
  • Figure 10 shows a three-quarter axonometric front view of a single rotor and the operating lever
  • Figure 11 shows a schematic view of one of the rotor operating levers in its possible positions
  • Figure 12 shows a schematic view of a type of wheelwork to which the impellers are connected
  • Figure 13 shows a schematic view of an application of the force resulting from oscillating pedals to the movement of the impellers
  • Figure 14 shows a schematic view of a variant of the application referred to in figure 13
  • Figure 15 shows a partially sectioned schematic view of the stern of a boat and of the propulsion system in a variant of the one shown in figure 3.
  • the boat propulsion and steering system with fully submerged rotors referred to in this invention result to be made up by: . - a pair of propellers generally shown as (1), each one of which comprises a horizontal impeller with reverse blading (2);
  • each impeller (2) obtained in the outer hull of the boat, delimited by a totally closed upper flat surface (6); a cylindrical lateral surface (7) open (7a) towards the outer lower area of the transom; a flat lower surface corresponding to the bottom plane of the hull open at the center and in the sector where the blading operates in agreement with the direction of movement of the boat (outer lateral zone) and closed in the sector (8) where the blading rotates in the direction opposite to the direction of movement (lateral zone towards the boat center line);
  • each impeller that, in the hand-operated solution, comprise an angled lever (9) fulcrated at the bottom in (11) on the inner part of the boat side; a rod (10) hinged to the lever (9); an element (12) hinged to the rod (10) and fulcrated on an axis (16), that is shaped, on two levels, with toothed circular sectors described by different radiuses: the upper toothed circular sector (13) has inner toothing and is enclosed by radiuses of greater length than the lower toothed sector (14) that has outer toothing; each toothed circular sector meshes with a crown gear (4 and 5) with free-wheel clutch on the rotation axis (3) integral with the impeller (2) that always rotates in the same direction whether the lever (9) is moved in the direction that goes from stern to head or the other way around; the different ratio between circular sector (13, 14) and constant crown gear (4, 5) compensates for the different force exerted on the lever in the thrust (lower) and in the traction (higher) of
  • 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 preference 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 total submersion of the impellers (2) causes their functionality to be unaffected by draught or wave motion problems.
  • 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, 2O 5 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.
  • a further means of operation of wheel 27 may be obtained having recourse to two racks tangent to the transverse diameter of wheel 27, which is a toothed wheel.
  • 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.
  • flow diverters may be used even within the impellers outflow areas with no obstruction outside the hull lines.

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)

Abstract

La présente invention concerne un système de propulsion et de direction d'un bateau avec rotors totalement immergés, qui permet de déplacer vers l'avant le bateau et de le diriger. Le système se révèle particulièrement adapté à une installation sur de petits bateaux et il est essentiellement constitué d'une paire de propulseurs (1), qui sont symétriques par rapport à la ligne centrale du bateau, totalement immergés, dans les lignes de coque se trouvant au sein de la surface inférieure de la coque, ou dans les surfaces si elle est en forme de V, près du tableau.
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 true EP2443030A1 (fr) 2012-04-25
EP2443030B1 EP2443030B1 (fr) 2016-04-13

Family

ID=42104301

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

Country Status (2)

Country Link
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010146610A1 *

Also Published As

Publication number Publication date
EP2443030B1 (fr) 2016-04-13
WO2010146610A1 (fr) 2010-12-23

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