EP1010614B1 - Module de propulsion et de gouverne pour navires de guerre - Google Patents

Module de propulsion et de gouverne pour navires de guerre Download PDF

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Publication number
EP1010614B1
EP1010614B1 EP98204306A EP98204306A EP1010614B1 EP 1010614 B1 EP1010614 B1 EP 1010614B1 EP 98204306 A EP98204306 A EP 98204306A EP 98204306 A EP98204306 A EP 98204306A EP 1010614 B1 EP1010614 B1 EP 1010614B1
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EP
European Patent Office
Prior art keywords
propulsion
fact
steering module
module according
pod
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.)
Expired - Lifetime
Application number
EP98204306A
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German (de)
English (en)
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EP1010614A1 (fr
Inventor
Luigi Sozzi
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.)
ABB Industria SpA
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ABB Industria SpA
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 ABB Industria SpA filed Critical ABB Industria SpA
Priority to EP98204306A priority Critical patent/EP1010614B1/fr
Priority to AT98204306T priority patent/ATE226536T1/de
Priority to DE69808940T priority patent/DE69808940D1/de
Publication of EP1010614A1 publication Critical patent/EP1010614A1/fr
Application granted granted Critical
Publication of EP1010614B1 publication Critical patent/EP1010614B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0206—Heat exchangers immersed in a large body of liquid
    • F28D1/022—Heat exchangers immersed in a large body of liquid for immersion in a natural body of water, e.g. marine radiators
    • 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
    • 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
    • B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
    • B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
    • 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
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F01P3/207—Cooling circuits not specific to a single part of engine or machine liquid-to-liquid heat-exchanging relative to marine vessels

Definitions

  • the present invention relates to a propulsion and steering module for naval craft, in particular surface naval craft.
  • modules for surface naval craft that simultaneously have the functions of the main propulsion unit and main steering unit is widely known in the art. See for example patent CA 1.311.657.
  • modules are generally formed by a submerged pod able to rotate in relation to the longitudinal axis of the naval craft, containing inside it a conventional type of synchronous electric motor on the shaft of which at least one main propulsion propeller is mounted. Cooling is provided using a forced air system that circulates air inside the pod.
  • This solution offers the following advantages, amongst others, compared to direct propulsion systems, whether diesel or diesel/electric: greater hydrodynamic efficiency, greater manoeuvrability even at low speeds and high turning angles, reduction of the space occupied inside the hull, elimination of rudders and related steering means; elimination of stern manoeuvring propellers and reduction of noise and vibration.
  • U.S. patents 5.417.597 and 5.632.658 describe combat naval craft in which the main propulsion is assigned to modules of this type.
  • U.S. 5.417.597 describes a naval destroyer with modular construction in which the main propulsion and steering functions are assigned to a module that contains a liquid-cooled conventional-type synchronous electric motor. The way in which cooling is provided is not described.
  • U.S.P. 5.632.658 describes a surface naval craft characterised by the fact that the propulsion is provided using a module on which tractor podded propellers are mounted.
  • the electric motor installed in the pod and its cooling system are of conventional type.
  • the utility model DE 29619385 describes a propulsion module characterised by having a twin propeller system driven by an electric motor and two stabilising fins positioned on the pod to improve hydrodynamic efficiency.
  • the cooling system of the motor is not specified.
  • EP 590867 describes a propulsion unit in which a multiple winding synchronous motor is housed in a submerged pod and cooled using air circulated inside the pod by special ducts.
  • the fans and heat exchangers required for the cooling are located in the hull.
  • This system does not guarantee complete cooling of the motor, in particular its upper parts, given that the upper part of the casing is not in contact with the water but fixed to the shank of the pod.
  • a propulsion and steering module with the features of the preamble of claim 1 is known from document DE-A-19627323.
  • the main task of the present invention is to provide a propulsion and steering module for naval craft in which cooling of the motor is performed without contact with the active parts of the motor itself and is improved in relation to the conventional cooling systems.
  • one object of the present invention is to provide a propulsion and steering module for naval craft in which it is possible to eliminate the ventilation ducts for cooling the power and control electronics, thus increasing the free space in the hull of the naval craft.
  • Another object of the present invention is to provide a propulsion and steering module for naval craft in which the number of conductors for transmitting electricity to the motor is significantly reduced compared to the case in which the cycle converter is housed inside the hull.
  • a propulsion and steering module for naval craft characterised by an innovative cooling system in which the cooling liquid circulates in the inner casing of the motor without being in contact with the active parts of the motor itself.
  • the liquid is cooled using at least one heat exchanger mounted in at least one end of the submerged module.
  • a further aspect of the present invention resides in the fact that the outer casing of the central part of the pod also forms the outer casing of the motor, thus forming a highly compact propulsion module that is also easy to assemble.
  • a further aspect is constituted by the fact that the electrical motor is a multielectronic motor with permanent magnets.
  • Yet another aspect of the present invention resides in the fact that the power and control electronics (inverters) of the motor are housed in the shank of the module, since the liquid cooling system makes it possible to eliminate the bulky ventilation ducts and auxiliary equipment, freeing further space inside the hull.
  • having the inverters inside the stem makes it possible to have just two conductors (DC buses) for transmitting electricity instead of between five and eight as normally required to power the motor with the cycle converter housed inside the hull.
  • Yet another aspect of the present invention resides in the fact that the supporting and thrust bearings of the motor shaft are cooled by the same liquid cooling system as the motor.
  • the propulsion and steering module for naval craft of the invention comprises: a watertight submerged pod 1 containing an electric motor 11 on the shaft 12 of which at least one propeller 13 is mounted: a substantially vertical support 4, the lower part of which is fixed to said pod 1 and the upper part of winch is connected to the hull of said naval craft in such a way as to be able to rotate in relation to the longitudinal axis of the hull.
  • Said pod 1 comprises: a central part 14 comprising an electric motor 11, said electric motor 11 being liquid cooled; two end parts 2 and 3, on at least one of which at least one propeller 13 is mounted and in at least one of which a heat exchanger 21 is mounted in which the cooling liquid of the motor 11 is circulated.
  • the cooling liquid circulates by means of a pump 6, for example, housed inside the pod.
  • the outer casing of the electric motor 11 appropriately defines the outer surface of the pod 1.
  • said central part 14 comprises an outer casing 15 formed by the outer casing of said electric motor 11, an inner casing 16 of said motor 11 in which a liquid cooling circuit is provided, a stator 17, a rotor 18 and a transmission shaft 12 coupled with at least one supporting bearing 120 and at least one thrust bearing 121, and means 19 for ensuring a watertight seal.
  • the engine casing forms the casing of the pod itself, the latter can be mounted directly on the shank, reducing the difficulty and time required for assembly and installation.
  • the stator, rotor and, generally speaking, all the components of the motor must be assembled inside the pod.
  • the stator 17 is mounted appropriately on elastic suspension 170 that makes it possible to dampen the vibration generated by the motor. It has in fact been seen that the vibration generated by the motor and transmitted to the hull when using elastic suspension for the stator bearing is lower than the most rigorous standards.
  • the outer casing 15 features holes 150 that bring the inside of the pod 1 into communication with the inside of the support 4. This characteristic represents a significant advantage compared to the systems of the prior art in that it enables access to the pod, with suitable precautions, during navigation as well, something that is not possible in the systems of the prior art due to the mass of air conveyed by the forced ventilation cooling system.
  • the electric motor is preferably a multielectronic motor with permanent magnets.
  • the central part 14 of the pod 1 comprises an outer casing 15 formed by the outer casing of said electric motor 11, an inner casing 16 of said motor 11 in which a liquid cooling circuit is provided and on which the magnetic units of the stator 17 are mounted as well as a rotor 18 comprising a rotor pole ring 180 with permanent magnets.
  • a multielectronic motor with permanent magnets for adaptation to suit requirements, is described in the publication "Novel technologies with PM-machines for ship propulsion" (M. Radaelli, L. Sozzi, P. Erhart - AES 97 - Paris, 13, 14 March 1997).
  • This type of motor has the considerable advantage of enabling individual units with a relatively low power output compared to the total power of the motor to be put out of service, while keeping the other units in operation. This ensures operation of the motor even in the event of local faults with relatively low losses of the power supplied. Good speed of the naval craft is therefore always guaranteed. Moreover, it is possible to operate inside the pod without having to dismantle it for any repairs to one or more units.
  • the modular construction makes it possible to obtain high efficiency (in the order of 90-95%) even at low speeds. optimising the use of the modules.
  • the heat exchanger can be mounted in the forward part of the pod, as shown in Figures 1 and 3, although it can also be mounted in the astern part or in both the end parts 2 and 3.
  • the heat exchanger 21 can. for example, be formed by one or more tubes in contact with the inner wall of said end part 2 or 3, and/or one or more half-tubes welded on the inner wall of said end part 2 or 3.
  • the heat exchanger is formed by a tube wound in a spiral or half-tubes welded on the inner surface of the end part 2; circulation is obtained by means of a pump 6 that sends the cool liquid through the line 40 to the manifold 100 that distributes the cool liquid in the ducts made in the inner casing 16.
  • the manifold 200 collects the hot liquid in outlet that is sent along the line 50 to the pump 6 that then sends it to the heat exchanger 21.
  • the power and control electronics (inverter) of the motor are housed inside the shank 4. This is possible since the shank 4 does not feature the bulky ventilation ducts necessary in the conventional propulsion modules.
  • the electronics can be cooled appropriately by the cooling liquid that uses the heat exchanger 21 before the liquid is sent to the motor itself.
  • a further heat exchanger dedicated to cooling the electronics can be mounted on the inner surface of the stem. It may indeed be appropriate to keep the two cooling circuits separate given that the electronic components are more sensitive to temperature.
  • housing the electronics in the stem makes it possible to free further space inside the ship. In this case in fact, only the AC/DC rectifier is installed in the hull. Moreover, it becomes possible to have just two conductors (DC buses) between the fixed part (hull) and rotating part (pod and stem) for transmitting electricity compared to the five or eight required for the synchronous motors of conventional type and compared to the six required for conventional permanent magnet motors with the electronics housed in the hull.
  • the cooling circuit can also be used for cooling one or more supporting or thrust bearings.
  • the bearings are appropriately cooled by the cooling circuit of the motor.
  • the pod has a maximum external diameter of approximately 2 m and a length of approximately 8 m.
  • the dimensions, in terms of surface area, of the end part 2 are sufficient, sizing the pipe system of the heat exchanger appropriately, to cool the electric motor even with seawater temperatures of 30°C.
  • the propulsion and steering module for naval craft as conceived is capable of numerous modifications and variants that are all within the inventive concept; moreover, all the details may he substituted by other technically equivalent elements.

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  • Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Motor Or Generator Frames (AREA)
  • Electrotherapy Devices (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Claims (13)

  1. Module de propulsion et de manoeuvre destiné à une embarcation navale comportant : une nacelle immergée étanche à l'eau (1) contenant un moteur électrique refroidi par liquide (11) sur l'arbre (12) duquel est montée au moins une hélice (13), un support sensiblement vertical (4), dont la partie inférieure est fixée sur la nacelle (1) et dont la partie supérieure est adaptée pour être connectée à la coque de l'embarcation navale, de manière à pouvoir tourner par rapport à l'axe longitudinal de la coque, caractérisé en ce que la nacelle (1) comporte : une partie centrale (14) comportant le moteur électrique (11), deux parties d'extrémité (2, 3), sur au moins une desquelles est montée au moins une hélice (13), et dans au moins une desquelles est monté un échangeur thermique (21) dans lequel le liquide de refroidissement du moteur (11) est mis en circulation, et en ce que le carter extérieur du moteur électrique (11) forme la surface extérieure de la nacelle (1).
  2. Module de propulsion et de manoeuvre selon la revendication 1, caractérisé en ce que la partie centrale (14) comporte un carter extérieur (15) formé par le carter extérieur du moteur électrique (11), un carter intérieur (16) du moteur (11) dans lequel est fourni un circuit de refroidissement par liquide, un stator (17), un rotor (18) et un arbre de transmission (12) accouplé à au moins un palier du support (120) et à au moins un palier de poussée (121), et des moyens (19) pour garantir une étanchéité à l'eau.
  3. Module de propulsion et de manoeuvre selon la revendication 1 ou 2, caractérisé en ce que l'échangeur thermique (21) est connecté au circuit de refroidissement mis en oeuvre dans le carter intérieur (16) par l'intermédiaire d'une pompe (6), de collecteurs (100, 200) et de conduits (40, 50).
  4. Module de propulsion et de manoeuvre selon l'une quelconque des revendications précédentes, caractérisé en ce que le stator (17) est monté sur une suspension élastique (170).
  5. Module de propulsion et de manoeuvre selon l'une quelconque des revendications précédentes, caractérisé en ce que des trous sont agencés sur le carter extérieur (15), mettant l'intérieur de la nacelle (1) en communication avec l'intérieur du support (4).
  6. Module de propulsion et de manoeuvre selon l'une quelconque des revendications précédentes, caractérisé en ce que le moteur électrique (11) est du type multi-électronique à aimants permanents.
  7. Module de propulsion et de manoeuvre selon la revendication 6, caractérisé en ce que la partie centrale (14) de la nacelle (1) comporte un carter extérieur (15) formé par le carter extérieur du moteur électrique (11), un carter intérieur (16) du moteur (11) dans lequel est fourni un circuit de refroidissement par liquide, et sur lequel sont montées les unités magnétiques du stator (17), de même qu'un rotor (18) comportant un anneau polaire de rotor (180) à aimants permanents.
  8. Module de propulsion et de manoeuvre selon l'une quelconque des revendications précédentes, caractérisé en ce que l'échangeur thermique (21) est situé dans la partie d'extrémité avant (2) de la nacelle (1).
  9. Module de propulsion et de manoeuvre selon l'une quelconque des revendications précédentes, caractérisé en ce que l'échangeur thermique (21) est formé par un ou plusieurs tuyaux en contact avec la paroi intérieure de la partie d'extrémité (2) ou (3).
  10. Module de propulsion et de manoeuvre selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'échangeur thermique (21) est formé par une ou plusieurs moitiés de tuyau soudées sur la paroi intérieure de la partie d'extrémité (2) ou (3).
  11. Module de propulsion et de manoeuvre selon l'une quelconque des revendications précédentes, caractérisé en ce que les circuits électroniques nécessaires pour faire fonctionner le moteur électrique (11) sont situés à l'intérieur du support (4), et sont refroidis par le circuit de refroidissement par liquide qu'utilise l'échangeur thermique (21).
  12. Module de propulsion et de manoeuvre selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un des paliers de support ou de poussée est refroidi par le circuit de refroidissement par liquide qu'utilise l'échangeur thermique (21).
  13. Module de propulsion et de manoeuvre selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte deux circuits de refroidissement, un premier pour les paliers et un autre pour le moteur/les circuits électroniques.
EP98204306A 1998-12-18 1998-12-18 Module de propulsion et de gouverne pour navires de guerre Expired - Lifetime EP1010614B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP98204306A EP1010614B1 (fr) 1998-12-18 1998-12-18 Module de propulsion et de gouverne pour navires de guerre
AT98204306T ATE226536T1 (de) 1998-12-18 1998-12-18 Antriebs- und steuerungsmodul für kriegsschiffe
DE69808940T DE69808940D1 (de) 1998-12-18 1998-12-18 Antriebs- und Steuerungsmodul für Kriegsschiffe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98204306A EP1010614B1 (fr) 1998-12-18 1998-12-18 Module de propulsion et de gouverne pour navires de guerre

Publications (2)

Publication Number Publication Date
EP1010614A1 EP1010614A1 (fr) 2000-06-21
EP1010614B1 true EP1010614B1 (fr) 2002-10-23

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EP98204306A Expired - Lifetime EP1010614B1 (fr) 1998-12-18 1998-12-18 Module de propulsion et de gouverne pour navires de guerre

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EP (1) EP1010614B1 (fr)
AT (1) ATE226536T1 (fr)
DE (1) DE69808940D1 (fr)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
US7029339B2 (en) 2001-08-30 2006-04-18 Siemens Aktiengesellschaft Shock-proof electric marine engine, e.g. engine or generator
WO2020189967A1 (fr) * 2019-03-19 2020-09-24 현대일렉트릭앤에너지시스템(주) Générateur pour navire

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FI115042B (fi) 2000-01-28 2005-02-28 Abb Oy Aluksen moottoriyksikkö
FR2815485B1 (fr) 2000-10-12 2003-01-24 France Etat Armement Dispositif de reduction du bruit et d'absorption des vibrations generees par un moteur electrique integre dans une nacelle de propulsion d'un navire
DE10102740A1 (de) * 2001-01-22 2002-08-01 Siemens Ag Antriebe für Schiffe
FR2823178B1 (fr) * 2001-04-10 2003-08-22 Technicatome Propulseur de navire a nacelle suspendue sous la coque
FR2823177B1 (fr) * 2001-04-10 2004-01-30 Technicatome Systeme de refrigeration pour le propulseur immerge de navire, externe a la coque
ES2278756T3 (es) * 2001-06-14 2007-08-16 Abb Oy Dispositivo y procedimiento de propulsion de un barco.
GB2378691B (en) * 2001-08-06 2005-12-14 Alstom A propulsion unit
DE10143713B4 (de) * 2001-08-30 2005-11-03 Siemens Ag Elektrische Antriebseinrichtung für ein Schiff
US6582257B1 (en) * 2001-12-17 2003-06-24 Alstom Propulsion unit
DE10223965A1 (de) * 2002-05-29 2003-12-11 Siemens Ag Schwingungsdämpfungsvorrichtung für Antriebsaggregate von Schiffsantriebsanlagen von Über- und Unterwasserschiffen
DE10322275A1 (de) * 2003-05-16 2004-12-02 Siemens Ag Kühlsystem für Elektrisches Antriebssystem mit Synchronmaschine mit Hochtemperatur-Supraleitender Feldwicklung für Propeller- und Jetantrieb mit besonders kleinen Durchmessern in schwimmenden Geräten
EP1810920A1 (fr) * 2006-01-20 2007-07-25 Torqeedo GmbH Moteur hors-bord électrique avec convertisseur électronique intégré
US7452251B2 (en) 2006-01-20 2008-11-18 Torqeedo Gmbh Integrated outboard motor
FI124311B (fi) * 2008-04-18 2014-06-30 Abb Oy Laivan propulsio- ja laakerointijärjestely
DE102010039609A1 (de) * 2010-08-20 2012-02-23 Siemens Aktiengesellschaft Elektrischer Gondelantrieb für eine schwimmende Einrichtung mit interner Statorkühlung
EP2824028B2 (fr) 2013-07-09 2021-10-27 ABB Oy Unité de propulsion de navire
DK2824027T3 (en) * 2013-07-09 2016-06-06 Abb Oy Progress unit for a ship
US9505478B2 (en) 2014-01-15 2016-11-29 Whitehead Sistemi Subacquei S.P.A. Underwater vehicle provided with heat exchanger
SG11201609694VA (en) 2014-06-03 2016-12-29 Rolls Royce Ab Pod propulsion device and a method for cooling such
DE102015218889B3 (de) 2015-09-30 2017-03-30 Siemens Aktiengesellschaft Antrieb für ein wassergebundenes Fortbewegungsmittel
DE102015218896B4 (de) 2015-09-30 2017-05-04 Siemens Aktiengesellschaft Antrieb für ein wassergebundenes Fortbewegungsmittel
CN108298053B (zh) * 2018-01-05 2020-06-12 武汉理工大学 具有实时测力功能的全回转推进器及推进控制方法
DE102018118163A1 (de) * 2018-07-26 2020-01-30 Torqeedo Gmbh Bootsantrieb
KR102320493B1 (ko) * 2019-03-19 2021-11-04 현대일렉트릭앤에너지시스템(주) 선박용 발전기
CN110053708A (zh) * 2019-04-29 2019-07-26 广船国际有限公司 一种法兰基座分段搭载方法

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7029339B2 (en) 2001-08-30 2006-04-18 Siemens Aktiengesellschaft Shock-proof electric marine engine, e.g. engine or generator
US7061147B2 (en) 2001-08-30 2006-06-13 Siemens Aktiengesellschaft Superconducting electrical machines for use in navy ships
WO2020189967A1 (fr) * 2019-03-19 2020-09-24 현대일렉트릭앤에너지시스템(주) Générateur pour navire

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EP1010614A1 (fr) 2000-06-21
ATE226536T1 (de) 2002-11-15
DE69808940D1 (de) 2002-11-28

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