WO2004058565A1 - Systeme de propulsion pour navires - Google Patents

Systeme de propulsion pour navires Download PDF

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Publication number
WO2004058565A1
WO2004058565A1 PCT/IB2003/005452 IB0305452W WO2004058565A1 WO 2004058565 A1 WO2004058565 A1 WO 2004058565A1 IB 0305452 W IB0305452 W IB 0305452W WO 2004058565 A1 WO2004058565 A1 WO 2004058565A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
propulsion system
steam
propeller
hull
Prior art date
Application number
PCT/IB2003/005452
Other languages
English (en)
Inventor
Alberto Spagnolo
Original Assignee
Alberto Spagnolo
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 claimed from ITRM20020654 external-priority patent/ITRM20020654A1/it
Priority claimed from IT000064A external-priority patent/ITRM20030064A1/it
Application filed by Alberto Spagnolo filed Critical Alberto Spagnolo
Priority to AU2003280189A priority Critical patent/AU2003280189A1/en
Publication of WO2004058565A1 publication Critical patent/WO2004058565A1/fr

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
    • B63H11/12—Marine propulsion by water jets the propulsive medium being steam or other gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/12—Marine propulsion by water jets the propulsive medium being steam or other gas
    • B63H11/14—Marine propulsion by water jets the propulsive medium being steam or other gas the gas being produced by combustion
    • 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
    • B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
    • B63G8/08—Propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
    • B63G8/14—Control of attitude or depth
    • B63G8/16—Control of attitude or depth by direct use of propellers or jets

Definitions

  • the present invention relates to the field of atercraft of any size that sail with part of the hull always below the waterline even under minimum loading.
  • propellers located at the stern and driven by one or more power units installed inside the vessel and connected to the propellers by gear systems and propeller shafts which are almost always very long.
  • the abovementioned propellers are used, the effect of the thrust of which is combined with that of a variable-inclination rudder.
  • the inventor of the present innovation has devised a revolutionary propulsion system for watercraft of the type described above in ' which neither the abovementioned long propeller shafts nor the rudder assembly as currently conceived are required. It will be obvious that the costs of building a vessel are significantly reduced by doing without such basic components, and that there is less maintenance required.
  • the propulsion system of the invention comprises one or more basically cylindrical pipes that run all or part of the way through the vessel below the waterline parallel to the longitudinal axis of the craft (with the longitudinal axes of the said pipes coplanar with each other if there are more than one of these) .
  • a propeller propulsion unit of known type mounted coaxially inside each pipe is a propeller propulsion unit of known type connected to a power unit capable of turning it in either direction, depending on which way it is operated.
  • each with- a propeller operating them so that they are both turning in the same direction of rotation will cause the vessel to advance in a straight line backwards or forwards, while operating them in such .a way that one is turning in the opposite direction of rotation to the other will turn the vessel about a point, changing its course or moving it as required in the course of manoeuvres.
  • the inventor also proposes equipping the system as described above with a plant which, by injecting steam into the said pipes in the appropriate direction, can also propel a craft, for example for moving at cruise speeds, allowing the propellers described above to be disengaged.
  • the subject of the present invention is therefore a propulsion system for watercraft as described in the accompanying Claim 1.
  • FIG. 1 a diagrammatic longitudinal section through a submersible in which the propulsion system of the invention is installed, comprising one pipe and one propulsion unit only;
  • Figure 2 a section on a horizontal plane below the waterline through the hull of a craft with two parallel pipes and two propulsion units;
  • Figure 3 a longitudinal section of part of the hull seen in Figure 2, taken through one of the said pipes;
  • Figure 4 the same section as in Figure 1, in a case in which the craft is provided with a steam generation plant, and the steam is injected by a ring of nozzles into each of the said pipes.
  • FIG. 1 shows how a propulsion system 1 according to the invention can be fitted to a submersible 21.
  • the hull 12 of the latter which in the figure is on the surface, nonetheless still has a part below the waterline L.
  • this propeller 7 may be an axial screw or hydraulic turbine, and is keyed to a shaft 10, mounted on the continuation of which is a power unit 19 whose diameter is significantly less than the diameter of the propeller 7, its function being to turn this propeller in both directions.
  • a filter unit 11 is installed at the bow opening of the pipe described above to prevent objects of predetermined dimensions reaching the propeller 7, while at the stern opening of the pipe 13 is a flow deflector member 31 of known type, composed for example of two deflectors 31d, 31e that can be rotated in mutually orthogonal directions.
  • the power unit 19 When the power unit 19 is in forward drive, it turns the propeller 7 of the propulsion unit 15, which is fixed to the pipe 13. The movement of the propeller 7 sucks in water through the bow opening and ejects it towards the stern, in the opposite direction to the direction of travel, thereby exerting a thrust on the submersible 21 in the direction of advance.
  • deflectors 31d, 31e By appropriately adjusting the abovementioned deflectors 31d, 31e it is possible, by known methods and known principles, to orient the direction of motion in the desired direction, in two orthogonal planes. Naturally, if the power unit 19 turns the propeller 7 in the opposite direction the submersible 21 will be caused to reverse in the same way.
  • power unit may be of various different types: for example, it may be an electric motor (as depicted in Figure 1) or a gas or steam turbine, and be arranged coaxially inside the pipe 13, or it may be any other system for generating mechanical energy mounted inside the hull 12 and connected by gears to the shaft 10 to which the propeller 7 of the propulsion unit 15 is keyed.
  • FIGS 2 and 3 show the application of a propulsion system 101 according to the invention to a floating craft such as for example a ship 20.
  • a propulsion system 101 there are two pipes 3, 4 with their longitudinal axes T-T parallel to the longitudinal axis K-K of the hull 2. These pipes are similar to those described in the previous example and are fitted with the filtration units 11 described earlier.
  • Installed inside each pipe 3, 4 is a propulsion unit 5, 6 similar to that illustrated earlier and equipped with a propeller 7 rotating on a shaft 10 that is integral in motion with a power unit 8., 9, which in this particular case is again an electric motor.
  • both of the power units 8, 9 turn the propellers in the same direction the ship 20 wil-1 advance, or, depending on the direction of rotation, reverse, in the manner already described. If however the two power units 8, 9 turn the propellers 7 in mutually opposite directions, the ship 20 will rotate about a centre of rotation 0 situated on the longitudinal axis K-K of the ship 20, resulting in a change of course or modifying its trim during manoeuvres. In this case, given the type of operation of the two-pipe 3,4 propulsion system 101, the deflector members described in the case discussed earlier are unnecessary.
  • a propulsion system according to the invention can be installed with equal convenience with the propeller towards the stern, as in Figure 1, or towards the bow, as in Figures 2 and 3.
  • the longitudinal axis T-T of the said pipes 3, 4, 13 can, where design requirements so dictate, be neither constantly nor perfectly rectilinear, as illustrated in Figure 1 in the case of the submersible 21.
  • the inventor proposes the option of fitting in each pipe 13 a steam dispensing member (e.g. a ring 23 of nozzles 24i coaxial with the pipe 13 as in the figure) from which the steam (or burnt gas) generated under pressure by the plant 22 is released.
  • a steam dispensing member e.g. a ring 23 of nozzles 24i coaxial with the pipe 13 as in the figure
  • the nozzles 24i, or more generally the ejection openings, of the steam or gas dispensing members are pointed in the appropriate direction, for example towards the stern as indicated in the drawing by the arrows V, the emission of the steam will (by the well-known principles of jet propulsion) propel the craft 21 in its normal direction of advance.
  • the nozzles 24i should preferably be provided with a shut-off system which would be operated whenever steam or burnt gas is not being produced, to prevent water entering them and getting into the associated plant.
  • the inventor provides for _ a craft to be moved, during the transitional heating-up phase of the said plants, by the abovementioned propellers 7, and using the steam or gas system once at temperature, for example in order to complete sections of a voyage at cruise speed.
  • the use of the said propellers 7 is also preferable when manoeuvring the craft.
  • the first system may also be designed for the lower powers necessary only during manoeuvring and in the abovementioned transitional phases. The decision as to the powers developed by the two systems that are most appropriate for the expected type of use for a craft is left to those skilled in the art.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Control Of Turbines (AREA)

Abstract

L'invention concerne un système de propulsion (1) pour navires (20, 21) qui naviguent avec une partie de leur coque (2, 12) en-dessous de la ligne d'eau (L). Ledit système comprend a) au moins une conduite blanche principalement cylindrique (3, 4, 13) fixée sur la structure de la coque (2, 12) en-dessous de la ligne d'eau (L), cette conduite (3, 4, 13) étant parallèle à l'axe longitudinal (K-K) de ladite coque (2) et b) au moins une unité de propulsion (5, 6, 15) à hélices (7) qui est installée coaxialement à l'intérieur d'une des conduites (3, 4, 13), l'hélice (7) étant clavetée à un arbre (10) et tournant autour de l'axe longitudinal (T-T) de ladite conduite (3, 4, 13). Enfin, ledit système comporte c) au moins une unité d'alimentation (8, 9, 19) connectée à une unité de propulsion (5, 6, 15), de telle manière qu'il est possible de la faire tourner sélectivement dans les deux directions.
PCT/IB2003/005452 2002-12-30 2003-11-21 Systeme de propulsion pour navires WO2004058565A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003280189A AU2003280189A1 (en) 2002-12-30 2003-11-21 Propulsion system for watercraft

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITRM2002A000654 2002-12-30
ITRM20020654 ITRM20020654A1 (it) 2002-12-30 2002-12-30 Sistema di propulsione per natanti.
ITRM2003A000064 2003-02-13
IT000064A ITRM20030064A1 (it) 2003-02-13 2003-02-13 Sistema di propulsione per natanti.

Publications (1)

Publication Number Publication Date
WO2004058565A1 true WO2004058565A1 (fr) 2004-07-15

Family

ID=32684052

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/005452 WO2004058565A1 (fr) 2002-12-30 2003-11-21 Systeme de propulsion pour navires

Country Status (2)

Country Link
AU (1) AU2003280189A1 (fr)
WO (1) WO2004058565A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150369751A1 (en) * 2013-02-01 2015-12-24 Luiz V. Cheim Device and method for transformer in-situ inspection
CN107054591A (zh) * 2016-11-28 2017-08-18 上海大学 一种混合驱动水下机器人

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB310268A (en) * 1928-09-24 1929-04-25 Ludwig Kort Improvements in screws for watercrart
GB420621A (en) * 1933-10-11 1934-12-05 Oscar Percy Moller Improvements in or relating to the construction of water-borne vessels and the propulsion thereof
US2467022A (en) * 1946-07-17 1949-04-12 Frank A Forlano Marine propulsion and steering device
FR1192127A (fr) * 1956-04-09 1959-10-23 Moteurs pour véhicules nautiques
FR1300287A (fr) * 1961-06-20 1962-08-03 Nouveau procédé permettant de réduire considérablement les forces s'opposant au déplacement d'un engin, tracté ou propulsé, soit sur un liquide, soit dans un liquide, soit dans un fluide
US3079751A (en) * 1961-10-02 1963-03-05 Neilson W Lewis Marine propulsion system
US3857240A (en) * 1972-02-28 1974-12-31 T Mcintyre Prime movers
US5359958A (en) * 1994-05-06 1994-11-01 Guild Johnithan R High-speed watercraft

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB310268A (en) * 1928-09-24 1929-04-25 Ludwig Kort Improvements in screws for watercrart
GB420621A (en) * 1933-10-11 1934-12-05 Oscar Percy Moller Improvements in or relating to the construction of water-borne vessels and the propulsion thereof
US2467022A (en) * 1946-07-17 1949-04-12 Frank A Forlano Marine propulsion and steering device
FR1192127A (fr) * 1956-04-09 1959-10-23 Moteurs pour véhicules nautiques
FR1300287A (fr) * 1961-06-20 1962-08-03 Nouveau procédé permettant de réduire considérablement les forces s'opposant au déplacement d'un engin, tracté ou propulsé, soit sur un liquide, soit dans un liquide, soit dans un fluide
US3079751A (en) * 1961-10-02 1963-03-05 Neilson W Lewis Marine propulsion system
US3857240A (en) * 1972-02-28 1974-12-31 T Mcintyre Prime movers
US5359958A (en) * 1994-05-06 1994-11-01 Guild Johnithan R High-speed watercraft

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150369751A1 (en) * 2013-02-01 2015-12-24 Luiz V. Cheim Device and method for transformer in-situ inspection
EP2762279B1 (fr) * 2013-02-01 2021-01-20 ABB Power Grids Switzerland AG Dispositif et procédé pour l'inspection in situ de transformateur
CN107054591A (zh) * 2016-11-28 2017-08-18 上海大学 一种混合驱动水下机器人

Also Published As

Publication number Publication date
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