EP2280862B1 - Azimuth propeller drive unit having a low mounting height for a floating device - Google Patents

Azimuth propeller drive unit having a low mounting height for a floating device Download PDF

Info

Publication number
EP2280862B1
EP2280862B1 EP09749744.0A EP09749744A EP2280862B1 EP 2280862 B1 EP2280862 B1 EP 2280862B1 EP 09749744 A EP09749744 A EP 09749744A EP 2280862 B1 EP2280862 B1 EP 2280862B1
Authority
EP
European Patent Office
Prior art keywords
propeller
rotor
shaft
electric motor
motor
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
EP09749744.0A
Other languages
German (de)
French (fr)
Other versions
EP2280862A2 (en
Inventor
Dierk SCHRÖDER
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2280862A2 publication Critical patent/EP2280862A2/en
Application granted granted Critical
Publication of EP2280862B1 publication Critical patent/EP2280862B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • 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
    • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
    • B63H2005/1256—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis with mechanical power transmission to propellers

Definitions

  • propeller propulsion devices are used in particular in the form of azimuth propulsion systems for ships, i.
  • the propeller drive is used both for propulsion and for the control of the ship, more and more frequently and used with ever higher performance, as they significantly expand the scope of many types of ships and thus provide a ship for a wider range of applications available.
  • azimuth propulsion systems examples include rudder propellers, POD drives and thrusters.
  • the shaft and the attached propeller housing in the form of a nacelle by means of an actuator with respect to a substantially vertical axis of rotation relative to the ship's structure is rotatable.
  • the at least one propeller shaft is mounted substantially horizontally in this gondola-shaped housing.
  • the electric motor for driving the drive shaft is here attached to the upper end of the shaft usually on the shaft or on a non-rotatably mounted in the ship support structure and has a stator and a rotor, wherein the rotor is connected to the drive shaft which extends at least partially through the hollow shaft.
  • the transmission of the torque of the electric motor from the drive shaft to the propeller shaft can then take place, for example, via an angular gear, which is arranged in the gondelike housing.
  • the motor Since in such motors the length of the motor in the axial direction, i. in the direction of the axis of rotation of the rotor, is relatively large, the motor extends with a relatively large length above the shaft into the floating device inside.
  • the propeller driving device thus has a considerable installation height, which results in restrictions on the positioning of the propeller drive device on the floating device and the space available in the floating device.
  • JP 2000142576 A which is considered to be the closest prior art, discloses a drive for a propeller of a ship, in which the propeller is driven by an electric motor arranged above it with a vertically extending motor shaft.
  • a propeller drive device according to the preamble of the patent Claim 1 such that it has a lower installation height in the floating device.
  • the electric motor is designed as an electric ring motor, which is arranged annularly around the drive shaft, wherein the rotor of the ring motor is rotatably connected via a rotor carrier with the drive shaft.
  • a ring motor is understood as meaning a motor which, in relation to the axis of rotation of the rotor, has a significantly greater extent in the radial direction than in the axial direction.
  • the rotor is annular in this case and the stator is arranged in a ring around the rotor.
  • An annular arrangement of the rotor about the drive shaft is here understood to mean that the drive shaft runs along the axis of rotation of the rotor and preferably even through the rotor, i. through the surface spanned by the rotor.
  • the ring motor is adjusted in outer diameter to the outer diameter of a support structure of the floating device for the azimuth propeller drive device.
  • the outer diameter of the ring motor is less than or equal to the outer diameter of the support structure.
  • the ring motor can in this case be mounted above or inside the support structure (also called "support cone").
  • the rotor carrier comprises a hub, a circular support ring and a connecting element for connecting the Hub with the support ring, wherein the hub is rotatably connected to the drive shaft and the support ring carries the rotor.
  • the connecting element is designed as a disc wheel.
  • the disc wheel may be provided with holes or slots.
  • the connecting element can also be designed as a spoke wheel.
  • the rotor carrier can also be a gear, e.g. a planetary gear, include. As a result, the size of the motor can be reduced.
  • the drive shaft is rotatably mounted in the shaft.
  • the rotor can also be rotatably mounted in the shaft. With a suitable mounting of the rotor in the shaft may possibly be dispensed with an (additional) storage of the drive shaft in the shaft.
  • the hollow shaft may be rotatable about an axis of rotation via at least one electric or hydraulic motor (hereinafter referred to as "rotary motor").
  • the rotary motor designed as an electric motor is designed as an electric ring motor which is arranged annularly about the axis of rotation of the shaft, wherein the rotor of the electric motor is connected to the shaft and the stator of the electric motor connected to the structure of the floating device is.
  • a particularly large power of the electric ring motor used for driving the drive shaft or the actuator in a small footprint is possible in this case that the designed as a ring motor electric motor is designed as a permanent-magnet synchronous machine.
  • the coupling of the drive shaft with the propeller shaft via a bevel gear since such bevel gearboxes are characterized by a good torque transmission and high reliability.
  • the housing is closed, in particular shaped like a gondola, and forms in its interior a cavity in which then, for example, the bevel gear can be accommodated.
  • the figure shows a schematic representation of a longitudinal section of an azimuth propeller driving device 1 according to the invention for a floating device, such as e.g. a ship or an offshore platform.
  • the propeller drive device 1 comprises a hollow shaft 2, which is supported by bearings 13 at its lower and upper end about a substantially vertical axis 3 rotatably supported by a support structure 4 of the floating device. Seals 14 seal a gap 15 between the shaft 2 and the support structure 4 against ingress of water.
  • a substantially horizontally extending propeller shaft. 7 by means of bearings 8 rotatably mounted about an axis 9.
  • the axis of rotation 3 of the shaft 2 and the axis of rotation 9 of the propeller shaft 7 are thus substantially perpendicular to each other.
  • the propeller shaft 7 is guided at one end 10 to outside the housing 5 and has at this end 10 an attached thereto propeller 11.
  • An electric motor 20 drives the propeller shaft 7 via a drive shaft 21 and a bevel gear 28 arranged in the housing 5, consisting of a bevel gear 29a and a ring gear 29b.
  • the electric motor 20 is arranged outside of the shaft 2 and the housing 5 in the interior of the floating device.
  • In the floating device is a non-illustrated generator or other power source, the or the electric motor, if necessary, powered by a converter with the necessary power.
  • the propeller drive device shown is a rotatable about a vertical axis 3 azimuth Propulsionsstrom in the form of a rudder propeller. It is possible that the propeller shaft 7 at its second end or an additional propeller shaft, via a suitable gear with the propeller shaft 7 or the Drive shaft 21 is coupled until it is guided outside of the housing 5 and there also has a propeller attached thereto. The two propellers can then rotate (i.e., contrarotate) in the same or in opposite directions.
  • the electric motor 20 is designed as an electric ring motor and has an annular rotor 22 and a ring-shaped stator 23, which surrounds the rotor 22 annularly to form an air gap.
  • the rotor 22 and the drive shaft 21 are rotatably supported about the same axis 3 as the shaft 2.
  • the rotor 22 is arranged annularly around the drive shaft 21, that is, that the drive shaft 21 along the axis of rotation 3 of the rotor 22 and thereby even through the rotor 22 through, that is, by the area spanned by the rotor 22 extends.
  • the electric motor 20 designed as a ring motor has, in relation to the axis of rotation 3 of the rotor 22 in the radial direction, a diameter A which is significantly greater than the length B of the motor in its axial longitudinal direction.
  • the annular stator 23 of the motor 20 is rotationally fixed to the shaft 2, here a support structure 24 (often referred to as “support cone”) at the upper end of the shaft 2, attached.
  • the ratio A / B depends essentially on the diameter of the supporting structure 24, on the torque to be applied to the propeller 11, and on the ratio of a gear possibly arranged between the motor 20 and the drive shaft 21 and that of the angular gear.
  • a gear may optionally be employed within the vertical extent of the motor 20, allowing for optimum tuning of the motor 20 to the drive torque required by the propeller.
  • the ring motor 20 is adapted in its outer diameter to the outer diameter of the supporting structure 24 of the floating device for the azimuth propeller drive device and has an outer diameter which is approximately equal to the outer diameter of the support structure 24.
  • the annular rotor 22 is non-rotatably connected to the drive shaft 21 via a rotor carrier 25 fastened to its ring inner side.
  • the rotor carrier 25 thus carries on its outer side the rotor 22.
  • the rotor carrier 25 comprises a hub 40, a circular support ring 41 and a connecting element 42 for connecting the hub 40 with the support ring 41.
  • the hub 40 is rotatably connected to the drive shaft 21 and the support ring 41 carries on its outer side the rotor 22.
  • the connecting element 42 may be formed, for example, as a disk wheel, which is preferably provided for weight saving with holes or slots.
  • the rotor carrier may also include a transmission, eg a planetary gear.
  • a plurality of bearings 26 serve for the rotatable mounting and horizontal and vertical fixing of the drive shaft 21, the rotor carrier 25 and the rotor 22 relative to the stator 23 and the shaft second
  • the rotation of the propeller drive device 1 about the vertical axis 3 takes place by means of an electric motor 30, which is likewise designed as an electric ring motor.
  • the motor 30 has a ring-shaped rotor 32 and an annular stator 33, which surrounds the rotor 32 annularly to form an air gap.
  • the rotor 32 is rotatably supported about the same axis 3 as the shaft 2, the drive shaft 21 and the rotor 22 of the electric motor 20.
  • the electric motor 30 designed as a ring motor has, in relation to the axis of rotation 3 of the rotor 32 in the radial direction, a diameter C which is significantly greater than the length D of the motor in its axial longitudinal direction.
  • the annular stator 33 of the motor 30 is rotationally fixed to a fixed part of the propeller driving device 1 or the floating device, e.g. the support structure 4, and the annular rotor 32 of the motor 30 is rotatably connected by means of a mounted on its inner ring rotor arm 45, which carries the rotor 32 with the shaft 2, here a flange 34 at the upper end of the shaft 2.
  • the connection between the motor 30 and the shaft 2 or between the motor 30 and the floating device can also take place via a suitable transmission. In this way, an optimal adaptation of the motor 30 to the required rotational speed and the required torque for rotating the propeller drive system is possible.
  • the electric motors 20, 30 are preferably designed as permanent-magnet synchronous machines.
  • the propeller drive device 1 can also be arranged retractable and extendable in a floating device.
  • a shaft into which the propeller drive device 1 is received in the retracted state can be formed in the floating device.

Description

Die Erfindung betrifft eine Azimut-Propellerantriebseinrichtung mit niedriger Einbauhöhe für eine schwimmende Einrichtung wie z.B. ein Schiff oder eine Offshore-Plattform mit

  • einem unterhalb einer Struktur der schwimmenden Einrichtung im Wasser anzuordnenden Gehäuse, in dem zumindest eine Propellerwelle drehbar gelagert ist, mit der zumindest ein Propeller gekoppelt ist,
  • mindestens einem Elektromotor mit einem Stator und einem Rotor zum Antrieb des zumindest einen Propellers,
  • einem hohlen Schaft, der das Gehäuse drehfest haltert,
  • wobei der Elektromotor außerhalb des Gehäuses angeordnet ist und mit seinem Rotor eine Antriebswelle antreibt, die mit der zumindest einen Propellerwelle gekoppelt ist und die zumindest teilweise durch den hohlen Schaft verläuft.
The invention relates to an azimuth propeller drive device with low installation height for a floating device such as a ship or an offshore platform with
  • a housing to be arranged in the water below a structure of the floating device, in which at least one propeller shaft is rotatably mounted, with which at least one propeller is coupled,
  • at least one electric motor with a stator and a rotor for driving the at least one propeller,
  • a hollow shaft, which rotatably holds the housing,
  • wherein the electric motor is arranged outside the housing and drives with its rotor a drive shaft, which is coupled to the at least one propeller shaft and which extends at least partially through the hollow shaft.

Derartige Propellerantriebseinrichtungen werden insbesondere in Form von Azimut-Propulsionsanlagen für Schiffe, d.h. der Propellerantrieb dient sowohl für den Vortrieb als auch für die Steuerung des Schiffes, immer häufiger und mit immer höheren Leistungen eingesetzt, da sie den Einsatzbereich vieler Schiffstypen signifikant erweitern und damit ein Schiff für ein breiteres Anwendungsspektrum zur Verfügung stellen.Such propeller propulsion devices are used in particular in the form of azimuth propulsion systems for ships, i. The propeller drive is used both for propulsion and for the control of the ship, more and more frequently and used with ever higher performance, as they significantly expand the scope of many types of ships and thus provide a ship for a wider range of applications available.

Beispiele für derartige Azimut-Propulsionsanlagen sind Ruderpropeller, POD-Antriebe und Thruster. Dabei ist der Schaft und das daran befestigte Propellergehäuse in Form einer Gondel mittels eines Stellantriebes in Bezug auf eine im Wesentlichen vertikale Drehachse gegenüber der Schiffsstruktur drehbar. Die mindestens eine Propellerwelle ist im Wesentlichen horizontal in diesem gondelförmigen Gehäuse gelagert. Der elektrische Motor zum Antrieb der Antriebswelle ist hierbei am oberen Ende des Schaftes in der Regel an dem Schaft oder an einer im Schiff drehfest befestigten Tragstruktur befestigt und weist einen Stator und einen Rotor auf, wobei der Rotor mit der Antriebswelle verbunden ist, die zumindest teilweise durch den hohlen Schaft verläuft. Die Übertragung des Drehmomentes des elektrischen Motors von der Antriebswelle auf die Propellerwelle kann dann beispielsweise über ein Winkelgetriebe erfolgen, das in dem gondelförmigen Gehäuse angeordnet ist.Examples of such azimuth propulsion systems are rudder propellers, POD drives and thrusters. In this case, the shaft and the attached propeller housing in the form of a nacelle by means of an actuator with respect to a substantially vertical axis of rotation relative to the ship's structure is rotatable. The at least one propeller shaft is mounted substantially horizontally in this gondola-shaped housing. The electric motor for driving the drive shaft is here attached to the upper end of the shaft usually on the shaft or on a non-rotatably mounted in the ship support structure and has a stator and a rotor, wherein the rotor is connected to the drive shaft which extends at least partially through the hollow shaft. The transmission of the torque of the electric motor from the drive shaft to the propeller shaft can then take place, for example, via an angular gear, which is arranged in the gondelike housing.

Da bei derartigen Motoren die Länge des Motors in axialer Richtung, d.h. in Richtung der Drehachse des Rotors, relativ groß ist, erstreckt sich der Motor mit einer relativ großen Länge oberhalb des Schaftes bis in die schwimmende Einrichtung hinein. Die Propellerantriebseinrichtung weist somit eine beträchtliche Einbauhöhe auf, wodurch sich Einschränkungen hinsichtlich der Positionierung der Propellerantriebseinrichtung an der schwimmenden Einrichtung sowie des in der schwimmenden Einrichtung zur Verfügung stehenden Platzes ergeben.Since in such motors the length of the motor in the axial direction, i. in the direction of the axis of rotation of the rotor, is relatively large, the motor extends with a relatively large length above the shaft into the floating device inside. The propeller driving device thus has a considerable installation height, which results in restrictions on the positioning of the propeller drive device on the floating device and the space available in the floating device.

Aus der EP 1 687 201 B1 ist ein Strahlantrieb für Wasserfahrzeuge bekannt, der auf dem Äntriebskonzept eines Elektroringmotors beruht. Bei einem derartigen Elektroringmotor handelt es sich um eine elektrische Maschine mit einem ringförmig ausgebildeten Rotor und einem Stator, der ringförmig derart um den Rotor angeordnet ist, dass er mit dem Rotor eine elektrische Maschine bildet. An der Ringinnenseite des Rotors sind Schaufeln angeordnet sind. Der Strahlantrieb weist keine zentrale Rotorwelle auf, d.h. er ist frei von einem Bauteil, das entlang der Drehachse des Rotors durch diesen hindurch verläuft.From the EP 1 687 201 B1 is a jet propulsion for watercraft known, which is based on the Äntriebskonzept an electric ring motor. Such an electric ring motor is an electric machine having an annular rotor and a stator annularly arranged around the rotor so as to form an electric machine with the rotor. On the inside of the ring of the rotor blades are arranged. The jet drive has no central rotor shaft, ie it is free of a component which extends along the axis of rotation of the rotor therethrough.

JP 2000142576 A das als nächstliegender Stand der Technik betrachtet wird, offenbart einen Antrieb für einen Propeller eines Schiffes, bei dem der Propeller durch einen darüber angeordneten Elektromotor mit einer vertikal verlaufenden Motorwelle angetrieben wird. JP 2000142576 A which is considered to be the closest prior art, discloses a drive for a propeller of a ship, in which the propeller is driven by an electric motor arranged above it with a vertically extending motor shaft.

Ausgehend hiervon ist es Aufgabe vorliegender Erfindung, eine Propellerantriebseinrichtung gemäß Oberbegriff des Patentan spruchs 1 derart weiterzubilden, dass sie eine geringere Einbauhöhe in der schwimmenden Einrichtung aufweist.Based on this, it is an object of the present invention, a propeller drive device according to the preamble of the patent Claim 1 such that it has a lower installation height in the floating device.

Die Lösung dieser Aufgabe gelingt durch eine Propellerantriebseinrichtung mit den Merkmalen des Patentanspruchs 1.The solution of this problem is achieved by a propeller drive device having the features of patent claim 1.

Vorteilhafte Ausgestaltungen sind jeweils Gegenstand der Unteransprüche.Advantageous embodiments are the subject of the dependent claims.

Erfindungsgemäß ist der Elektromotor als ein elektrischer Ringmotor ausgebildet ist, der ringförmig um die Antriebswelle angeordnet ist, wobei der Rotor des Ringmotors über einen Rotorträger drehfest mit der Antriebswelle verbunden ist.According to the invention, the electric motor is designed as an electric ring motor, which is arranged annularly around the drive shaft, wherein the rotor of the ring motor is rotatably connected via a rotor carrier with the drive shaft.

Unter einem Ringmotor wird hierbei ein Motor verstanden, der in Bezug auf die Drehachse des Rotors in radialer Richtung eine deutlich größere Ausdehnung als in axialer Richtung aufweist. Der Rotor ist hierbei ringförmig ausgebildet und der Stator ist ringförmig um den Rotor angeordnet.In this case, a ring motor is understood as meaning a motor which, in relation to the axis of rotation of the rotor, has a significantly greater extent in the radial direction than in the axial direction. The rotor is annular in this case and the stator is arranged in a ring around the rotor.

Unter einer ringförmigen Anordnung des Rotors um die Antriebswelle wird hierbei verstanden, dass die Antriebswelle entlang der Drehachse des Rotors verläuft und bevorzugt sogar durch den Rotor hindurch, d.h. durch die von dem Rotor aufgespannte Fläche, verläuft.An annular arrangement of the rotor about the drive shaft is here understood to mean that the drive shaft runs along the axis of rotation of the rotor and preferably even through the rotor, i. through the surface spanned by the rotor.

Durch die relativ geringe Ausdehnung des elektrischen Ringmotors in axialer Richtung ist die Einbauhöhe des Motors in der schwimmenden Einrichtung sehr gering. Der im Gegenzug aufgrund der größeren radialen Ausdehnung notwendige größere Einbauplatz in radialer Richtung ist in vielen schwimmenden Einrichtungen dagegen meist gegeben und als weniger kritisch anzusehen. Vorzugsweise ist der Ringmotor hinsichtlich seines Außendurchmessers an den Außendurchmesser einer Tragstruktur der schwimmenden Einrichtung für die Azimut-Propellerantriebseinrichtung angepasst. Bevorzugt ist der Außendurchmesser des Ringmotors dabei kleiner oder gleich dem Außendurchmesser der Tragstruktur. Der Ringmotor kann hierbei oberhalb oder innerhalb der Tragstruktur (auch "Tragkegel" genannt) angebracht sein.Due to the relatively small extent of the electric ring motor in the axial direction, the installation height of the motor in the floating device is very low. On the other hand, the larger installation space in the radial direction, which in turn is necessary due to the larger radial extent, is usually given in many floating installations and should be regarded as less critical. Preferably, the ring motor is adjusted in outer diameter to the outer diameter of a support structure of the floating device for the azimuth propeller drive device. Preferably, the outer diameter of the ring motor is less than or equal to the outer diameter of the support structure. The ring motor can in this case be mounted above or inside the support structure (also called "support cone").

Gemäß einer konstruktiv besonders einfachen Ausgestaltung der Erfindung umfasst der Rotorträger eine Nabe, einen kreisförmigen Tragkranz und ein Verbindungselement zur Verbindung der Nabe mit dem Tragkranz, wobei die Nabe drehfest mit der Antriebswelle verbunden ist und der Tragkranz den Rotor trägt.According to a structurally particularly simple embodiment of the invention, the rotor carrier comprises a hub, a circular support ring and a connecting element for connecting the Hub with the support ring, wherein the hub is rotatably connected to the drive shaft and the support ring carries the rotor.

Eine gute Drehmomentübertragung bei gleichzeitig geringem Platz- und Gewichtsbedarf ist hierbei dadurch möglich, dass das Verbindungselement als ein Scheibenrad ausgebildet ist. Zur weiteren Gewichtsreduzierung kann das Scheibenrad mit Löchern oder Schlitzen versehen sein. Alternativ kann das Verbindungselement auch als ein Speichenrad ausgebildet sein.A good torque transmission with low space and weight requirements is possible in this case that the connecting element is designed as a disc wheel. To further reduce weight, the disc wheel may be provided with holes or slots. Alternatively, the connecting element can also be designed as a spoke wheel.

Der Rotorträger kann auch ein Getriebe, z.B. ein Planetengetriebe, beinhalten. Hierdurch kann die Baugröße des Motors verringert werden.The rotor carrier can also be a gear, e.g. a planetary gear, include. As a result, the size of the motor can be reduced.

Hierbei ist bevorzugt die Antriebswelle drehbar in dem Schaft gelagert. Zusätzlich kann auch der Rotor drehbar in dem Schaft gelagert sein. Bei einer geeigneten Lagerung des Rotors im Schaft kann ggf. auf eine (zusätzliche) Lagerung der Antriebswelle in dem Schaft verzichtet werden.In this case, preferably, the drive shaft is rotatably mounted in the shaft. In addition, the rotor can also be rotatably mounted in the shaft. With a suitable mounting of the rotor in the shaft may possibly be dispensed with an (additional) storage of the drive shaft in the shaft.

Um eine Drehbarkeit der Propelleräntriebseinrichtung um eine vertikale Achse in Bezug auf die schwimmende Einrichtung zu ermöglichen, kann der hohle Schaft über mindestens einen Elektro- oder Hydraulikmotor (im Folgenden als "Drehmotor" bezeichnet) um eine Drehachse drehbar sein.In order to allow the propeller drive device to be rotatable about a vertical axis with respect to the floating device, the hollow shaft may be rotatable about an axis of rotation via at least one electric or hydraulic motor (hereinafter referred to as "rotary motor").

Gemäß einer besonders vorteilhaften Ausgestaltung ist dabei der als Elektromotor ausgebildete Drehmotor als ein elektrischer Ringmotor ausgebildet, der ringförmig um die Drehachse des Schaftes angeordnet ist, wobei der Rotor des Elektromotors mit dem Schaft verbunden ist und der Stator des Elektromotors mit der Struktur der schwimmenden Einrichtung verbunden ist. Eine besonders große Leistung des für den Antrieb der Antriebswelle oder den Stellantrieb verwendeten elektrischen Ringmotors bei kleinem Platzbedarf ist hierbei dadurch möglich, dass der als Ringmotor ausgebildete Elektromotor als eine permanent erregte Synchronmaschine ausgebildet ist.According to a particularly advantageous embodiment of the rotary motor designed as an electric motor is designed as an electric ring motor which is arranged annularly about the axis of rotation of the shaft, wherein the rotor of the electric motor is connected to the shaft and the stator of the electric motor connected to the structure of the floating device is. A particularly large power of the electric ring motor used for driving the drive shaft or the actuator in a small footprint is possible in this case that the designed as a ring motor electric motor is designed as a permanent-magnet synchronous machine.

Durch die Anordnung eines Getriebes zwischen dem Motor zum Antrieb der Antriebswelle und der Antriebswelle bzw. zwischen dem Drehmotor und dem Schaft und/oder dem Drehmotor und der schwimmender Einrichtung kann jeweils ein zusätzlich gesteigertes Drehmoment bei gleicher Baugröße erreicht werden.By arranging a transmission between the motor for driving the drive shaft and the drive shaft or between the rotary motor and the shaft and / or the rotary motor and the floating device, in each case an additionally increased torque can be achieved with the same size.

Von Vorteil erfolgt die Kopplung der Antriebswelle mit der Propellerwelle über ein Kegelradgetriebe, da sich derartige Kegelradgetriebe durch eine gute Drehmomentübertragung und hohe Zuverlässigkeit auszeichnen.Advantageously, the coupling of the drive shaft with the propeller shaft via a bevel gear, since such bevel gearboxes are characterized by a good torque transmission and high reliability.

Gemäß einer auch für größere Leistungsklassen einer erfindungsgemäßen Propellerantriebseinrichtung hydrodynamisch besonders vorteilhaften Ausgestaltung der Erfindung ist das Gehäuse geschlossen, insbesondere gondelartig geformt, und bildet in seinem Inneren einen Hohlraum aus, in dem dann beispielsweise das Kegelradgetriebe untergebracht werden kann.According to a hydrodynamically particularly advantageous embodiment of the invention for larger power classes of a propeller drive device according to the invention, the housing is closed, in particular shaped like a gondola, and forms in its interior a cavity in which then, for example, the bevel gear can be accommodated.

Die Erfindung sowie weitere vorteilhafte Ausgestaltungen der Erfindung gemäß Merkmalen der Unteransprüche werden im Folgenden anhand eines Ausführungsbeispieles in der Figur näher erläutert.The invention and further advantageous embodiments of the invention according to features of the subclaims are explained in more detail below with reference to an embodiment in the figure.

Die Figur zeigt in schematischer Darstellung einen Längsschnitt einer erfindungsgemäßen Azimut-Propellerantriebseinrichtung 1 für eine schwimmende Einrichtung wie z.B. ein Schiff oder eine Offshore-Plattform. Die Propellerantriebseinrichtung 1 umfasst einen hohlen Schaft 2, der mittels Lager 13 an seinem unteren und oberen Ende um eine im Wesentlichen vertikale Achse 3 drehbar von einer Haltestruktur 4 der schwimmenden Einrichtung gehaltert ist. Dichtungen 14 dichten einen Zwischenraum 15 zwischen dem Schaft 2 und der Haltestruktur 4 gegen ein Eindringen von Wasser ab.The figure shows a schematic representation of a longitudinal section of an azimuth propeller driving device 1 according to the invention for a floating device, such as e.g. a ship or an offshore platform. The propeller drive device 1 comprises a hollow shaft 2, which is supported by bearings 13 at its lower and upper end about a substantially vertical axis 3 rotatably supported by a support structure 4 of the floating device. Seals 14 seal a gap 15 between the shaft 2 and the support structure 4 against ingress of water.

Ein strömungsgünstig, gondelartig geformtes Gehäuse 5, das in seinem Inneren einen Hohlraum 6 ausbildet, ist am unteren Ende des Schaftes 2 drehfest gehaltert. In dem Gehäuse 5 ist eine im Wesentlichen horizontal verlaufende Propellerwelle 7 mittels Lager 8 um eine Achse 9 drehbar gelagert. Die Drehachse 3 des Schaftes 2 und die Drehachse 9 der Propellerwelle 7 stehen somit im Wesentlichen senkrecht aufeinander.A streamlined, gondola-like shaped housing 5, which forms a cavity 6 in its interior, is rotatably supported at the lower end of the shaft 2. In the housing 5 is a substantially horizontally extending propeller shaft. 7 by means of bearings 8 rotatably mounted about an axis 9. The axis of rotation 3 of the shaft 2 and the axis of rotation 9 of the propeller shaft 7 are thus substantially perpendicular to each other.

Die Propellerwelle 7 ist an einem Ende 10 bis außerhalb des Gehäuses 5 geführt und weist an diesem Ende 10 einen daran befestigten Propeller 11 auf. Ein Elektromotor 20 treibt über eine Antriebswelle 21 und ein in dem Gehäuse 5 angeordnetes Kegelradgetriebe 28 bestehend aus einem Kegelrad 29a und einem Tellerrad 29b die Propellerwelle 7 an. Der Elektromotor 20 ist außerhalb des Schaftes 2 und des Gehäuses 5 im Inneren der schwimmenden Einrichtung angeordnet. In der schwimmenden Einrichtung befindet sich ein nicht näher dargestellter Generator oder eine andere Stromquelle, der bzw. die den Elektromotor, ggf. über einen Umrichter, mit dem nötigen Strom versorgt.The propeller shaft 7 is guided at one end 10 to outside the housing 5 and has at this end 10 an attached thereto propeller 11. An electric motor 20 drives the propeller shaft 7 via a drive shaft 21 and a bevel gear 28 arranged in the housing 5, consisting of a bevel gear 29a and a ring gear 29b. The electric motor 20 is arranged outside of the shaft 2 and the housing 5 in the interior of the floating device. In the floating device is a non-illustrated generator or other power source, the or the electric motor, if necessary, powered by a converter with the necessary power.

Die gezeigte Propellerantriebseinrichtung stellt eine um eine vertikale Achse 3 verdrehbare Azimut-Propulsionsanlage in Form eines Ruderpropellers dar. Es ist dabei möglich, dass die Propellerwelle 7 auch an ihrem zweiten Ende oder eine zusätzliche Propellerwelle, die über ein geeignetes Getriebe mit der Propellerwelle 7 oder der Antriebswelle 21 gekoppelt ist, bis außerhalb des Gehäuses 5 geführt ist und dort ebenfalls einen daran befestigten Propeller aufweist. Die beiden Propeller können sich dann in die gleiche oder auch in entgegengesetzte Richtungen drehen (d.h. kontrarotieren).The propeller drive device shown is a rotatable about a vertical axis 3 azimuth Propulsionsanlage in the form of a rudder propeller. It is possible that the propeller shaft 7 at its second end or an additional propeller shaft, via a suitable gear with the propeller shaft 7 or the Drive shaft 21 is coupled until it is guided outside of the housing 5 and there also has a propeller attached thereto. The two propellers can then rotate (i.e., contrarotate) in the same or in opposite directions.

Der Elektromotor 20 ist als elektrischer Ringmotor ausgebildet und weist einen ringförmig ausgebildeten Rotor 22 und einen ringförmig ausgebildeten Stator 23 auf, der den Rotor 22 ringförmig unter Bildung eines Luftspaltes umschließt. Der Rotor 22 und die Antriebswelle 21 sind um die gleiche Achse 3 wie der Schaft 2 drehbar gelagert. Der Rotor 22 ist dabei ringförmig um die Antriebswelle 21 angeordnet, d.h. dass die Antriebswelle 21 entlang der Drehachse 3 des Rotors 22 und dabei sogar durch den Rotor 22 hindurch, d.h. durch die von dem Rotor 22 aufgespannte Fläche, verläuft.The electric motor 20 is designed as an electric ring motor and has an annular rotor 22 and a ring-shaped stator 23, which surrounds the rotor 22 annularly to form an air gap. The rotor 22 and the drive shaft 21 are rotatably supported about the same axis 3 as the shaft 2. The rotor 22 is arranged annularly around the drive shaft 21, that is, that the drive shaft 21 along the axis of rotation 3 of the rotor 22 and thereby even through the rotor 22 through, that is, by the area spanned by the rotor 22 extends.

Der als Ringmotor ausgebildete Elektromotor 20 weist in Bezug auf die Drehachse 3 des Rotors 22 in radialer Richtung einen Durchmesser A auf, der deutlich größer als die Länge B des Motors in seiner axialen Längsrichtung ist.The electric motor 20 designed as a ring motor has, in relation to the axis of rotation 3 of the rotor 22 in the radial direction, a diameter A which is significantly greater than the length B of the motor in its axial longitudinal direction.

Der ringförmige Stator 23 des Motors 20 ist drehfest an dem Schaft 2, hier einer Tragstruktur 24 (häufig auch als "Tragkegel" bezeichnet) am oberen Ende des Schaftes 2, befestigt.The annular stator 23 of the motor 20 is rotationally fixed to the shaft 2, here a support structure 24 (often referred to as "support cone") at the upper end of the shaft 2, attached.

Das Verhältnis A/B hängt im Wesentlichen vom Durchmesser der Tragstruktur 24, von dem an dem Propeller 11 aufzubringenden Moment und der Übersetzung eines ggf. zwischen dem Motor 20 und der Antriebswelle 21 angeordneten Getriebes sowie der des Winkelgetriebes ab. Durch geeignete Auswahl eines Ringmotors kann ggf. ein Getriebe innerhalb der vertikalen Ausdehnung des Motors 20 eingesetzt werden, was eine optimale Abstimmung des Motors 20 an das durch den Propeller erforderliche Antriebsdrehmoment ermöglicht.The ratio A / B depends essentially on the diameter of the supporting structure 24, on the torque to be applied to the propeller 11, and on the ratio of a gear possibly arranged between the motor 20 and the drive shaft 21 and that of the angular gear. By appropriate selection of a ring motor, a gear may optionally be employed within the vertical extent of the motor 20, allowing for optimum tuning of the motor 20 to the drive torque required by the propeller.

Der Ringmotor 20 ist hinsichtlich seines Außendurchmessers an den Außendurchmesser der Tragstruktur 24 der schwimmenden Einrichtung für die Azimut-Propellerantriebseinrichtung angepasst und weist einen Außendurchmesser auf, der etwa gleich dem Außendurchmesser der Tragstruktur 24 ist.The ring motor 20 is adapted in its outer diameter to the outer diameter of the supporting structure 24 of the floating device for the azimuth propeller drive device and has an outer diameter which is approximately equal to the outer diameter of the support structure 24.

Der ringförmige Rotor 22 ist über einen an seiner Ringinnenseite befestigten Rotorträger 25 drehfest mit der Antriebswelle 21 verbunden. Der Rotorträger 25 trägt somit auf seiner Außenseite den Rotor 22. Der Rotorträger 25 umfasst eine Nabe 40, einen kreisförmigen Tragkranz 41 und ein Verbindungselement 42 zur Verbindung der Nabe 40 mit dem Tragkranz 41. Die Nabe 40 ist dabei drehfest mit der Antriebswelle 21 verbunden und der Tragkranz 41 trägt auf seiner Außenseite den Rotor 22. Das Verbindungselement 42 kann beispielsweise als ein Scheibenrad ausgebildet sein, das zur Gewichtseinsparung vorzugsweise mit Löchern oder Schlitzen versehen ist. Alternativ kann der Rotorträger auch ein Getriebe, z.B. ein Planetengetriebe, beinhalten.The annular rotor 22 is non-rotatably connected to the drive shaft 21 via a rotor carrier 25 fastened to its ring inner side. The rotor carrier 25 thus carries on its outer side the rotor 22. The rotor carrier 25 comprises a hub 40, a circular support ring 41 and a connecting element 42 for connecting the hub 40 with the support ring 41. The hub 40 is rotatably connected to the drive shaft 21 and the support ring 41 carries on its outer side the rotor 22. The connecting element 42 may be formed, for example, as a disk wheel, which is preferably provided for weight saving with holes or slots. Alternatively, the rotor carrier may also include a transmission, eg a planetary gear.

mehrere Lager 26 dienen zur drehbaren Lagerung und horizontalen und vertikalen Fixierung der Antriebswelle 21, des Rotorträgers 25 und des Rotors 22 gegenüber dem Stator 23 und dem Schaft 2.a plurality of bearings 26 serve for the rotatable mounting and horizontal and vertical fixing of the drive shaft 21, the rotor carrier 25 and the rotor 22 relative to the stator 23 and the shaft second

Das Drehen der Propellerantriebseinrichtung 1 um die vertikale Achse 3 erfolgt mit Hilfe eines elektrischen Motors 30, der ebenfalls als ein elektrischer Ringmotor ausgebildet ist. Der Motor 30 weist einen ringförmig ausgebildeten Rotor 32 und einen ringförmig ausgebildeten Stator 33 auf, der den Rotor 32 ringförmig unter Bildung eines Luftspaltes umschließt. Der Rotor 32 ist um die gleiche Achse 3 wie der Schaft 2, die Antriebswelle 21 und der Rotor 22 des Elektromotors 20 drehbar gelagert.The rotation of the propeller drive device 1 about the vertical axis 3 takes place by means of an electric motor 30, which is likewise designed as an electric ring motor. The motor 30 has a ring-shaped rotor 32 and an annular stator 33, which surrounds the rotor 32 annularly to form an air gap. The rotor 32 is rotatably supported about the same axis 3 as the shaft 2, the drive shaft 21 and the rotor 22 of the electric motor 20.

Der als Ringmotor ausgebildete Elektromotor 30 weist in Bezug auf die Drehachse 3 des Rotors 32 in radialer Richtung einen Durchmesser C auf, der deutlich größer als die Länge D des Motors in seiner axialen Längsrichtung ist.The electric motor 30 designed as a ring motor has, in relation to the axis of rotation 3 of the rotor 32 in the radial direction, a diameter C which is significantly greater than the length D of the motor in its axial longitudinal direction.

Der ringförmige Stator 33 des Motors 30 ist drehfest an einem feststehenden Teil der Propellerantriebseinrichtung 1 oder der schwimmenden Einrichtung, z.B. der Haltestruktur 4, und der ringförmige Rotor 32 des Motors 30 ist mittels eines an seiner Ringinnenseite befestigten Rotorträgers 45, der den Rotor 32 trägt, drehfest mit dem Schaft 2, hier einem Flansch 34 am oberen Ende des Schaftes 2, verbunden. Die Verbindung zwischen dem Motor 30 und dem Schaft 2 bzw. zwischen dem Motor 30 und der schwimmenden Einrichtung kann auch über ein geeignetes Getriebe erfolgen. Auf diese Weise ist eine optimale Anpassung des Motors 30 an die erforderliche Drehgeschwindigkeit sowie die benötigten Momente zum Verdrehen der Propellerantriebsanlage möglich.The annular stator 33 of the motor 30 is rotationally fixed to a fixed part of the propeller driving device 1 or the floating device, e.g. the support structure 4, and the annular rotor 32 of the motor 30 is rotatably connected by means of a mounted on its inner ring rotor arm 45, which carries the rotor 32 with the shaft 2, here a flange 34 at the upper end of the shaft 2. The connection between the motor 30 and the shaft 2 or between the motor 30 and the floating device can also take place via a suitable transmission. In this way, an optimal adaptation of the motor 30 to the required rotational speed and the required torque for rotating the propeller drive system is possible.

Durch die jeweils relativ geringe Ausdehnung in axialer Richtung sowohl des Motors 20 zum Antrieb der Propeller 11 als auch des Motors 30 zum Drehen des Schaftes 2 ist die Einbauhöhe der gesamten Propellerantriebseinrichtung in der schwimmenden Einrichtung sehr gering. Der im Gegenzug aufgrund der größeren radialen Ausdehnung notwendige größere Einbauplatz der Motoren 20, 30 ist unkritisch, da er sich nach der im Wesentlichen horizontalen Ausdehnung der Anlagen richtet.Due to the respective relatively small extent in the axial direction of both the motor 20 for driving the propeller 11 and the motor 30 for rotating the shaft 2 is the installation height the entire propeller drive device in the floating device very low. The larger installation space of the motors 20, 30, which in turn is necessary because of the larger radial extent, is not critical since it depends on the essentially horizontal extent of the installations.

Die Elektromotoren 20, 30 sind bevorzugt als permanenterregte Synchronmaschinen ausgebildet.The electric motors 20, 30 are preferably designed as permanent-magnet synchronous machines.

Aufgrund der geringen Einbauhöhe kann die Propellerantriebseinrichtung 1 auch ein- und ausfahrbar in einer schwimmenden Einrichtung angeordnet sein. In der schwimmenden Einrichtung kann hierzu ein Schacht ausgebildet sein, in den die Propellerantriebseinrichtung 1 im eingefahrenen Zustand aufgenommen ist.Due to the low installation height, the propeller drive device 1 can also be arranged retractable and extendable in a floating device. For this purpose, a shaft into which the propeller drive device 1 is received in the retracted state can be formed in the floating device.

Bei Verwendung eines elektrischen Ringmotors als Antriebsmotor für eine Azimut-Propulsionsanlage einer schwimmenden Einrichtung, insbesondere in Verbindung mit einem weiteren elektrischen Ringmotor als Drehantrieb für die azimutale Drehungder Propulsionsanlage, kann somit eine besonders niedrige Einbauhöhe der Azimut-Propulsionsanlage in der schwimmenden Einrichtung erzielt werden. In besonderem Maße gilt dies auch für die Verwendung eines Ringmotors als elektrischen Stellantrieb für die azimutale Drehung von POD-Anlagen.When using an electric ring motor as a drive motor for an azimuth Propulsionsanlage a floating device, especially in conjunction with another electric ring motor as a rotary drive for the azimuthal rotation of Propulsionsanlage, thus a particularly low installation height of the azimuth Propulsionsanlage can be achieved in the floating device. This is especially true for the use of a ring motor as an electric actuator for the azimuthal rotation of POD systems.

Claims (7)

  1. Azimuth propeller drive unit (1) with low installation height for a floating device, such as a ship or an offshore platform, having
    - a housing (5) to be arranged in the water, below a structure of the floating device, in which housing (5) at least one propeller shaft (7) is rotatably mounted, to which propeller shaft (7) at least one propeller (11) is coupled,
    - at least one electric motor (20) with a stator (23) and a rotor (22) for driving the at least one propeller (11),
    - a hollow shank (2) which secures the housing (5) in a rotationally fixed manner,
    - wherein the electric motor (20) is arranged outside the housing (5) and drives a drive shaft (21) with its rotor (22), which drive shaft (21) is coupled to the at least one propeller shaft (7) and at least partially extends through the hollow shank (2), wherein
    the electric motor (20) is embodied as an electric ring motor which is annularly arranged around the drive shaft (21), wherein the rotor (22) of the electric motor (20) is connected via a rotor support (25) to the drive shaft (21), characterised in that the rotor support (25) comprises a hub (40), a circular supporting rim (41) and a connecting element (42) for connecting the hub (40) to the supporting rim (41), wherein the hub (40) is connected to the drive shaft (21) in a rotationally fixed manner and the supporting rim (42) supports the rotor (22) and the connecting element (42) is embodied as a disc wheel provided with holes or slits or as a spoked wheel,
    and characterised by an electric motor (30) for rotating the shank (2) around an axis of rotation (3), wherein the electric motor (30) is likewise embodied as an electric ring motor and is annularly arranged around the axis of rotation (3) of the shank (2), and wherein the rotor (32) of the electric motor (30) is connected to the shank (2) in a rotationally fixed manner and the stator (33) of the electric motor (30) is connected to the structure of the floating device in a rotationally fixed manner.
  2. Propeller drive unit (1) according to claim 1,
    characterised in that the rotor support (25) contains a transmission, for example a planetary gear.
  3. Propeller drive unit (1) according to one of the preceding claims, characterised in that the drive shaft (21) is rotatably mounted in the hollow shank (2).
  4. Propeller drive unit (1) according to one of the preceding claims, characterised in that the rotor (22) is rotatably mounted in the shank or in the stator (23).
  5. Propeller drive unit (1) according to one of the preceding claims, characterised in that the electric motor (20 or 30) embodied as a ring motor is embodied as a permanently excited synchronous machine.
  6. Propeller drive unit (1) according to one of the preceding claims, characterised in that the drive shaft (21) is coupled via a bevel gear (28) to the at least one propeller shaft (7).
  7. Propeller drive unit (1) according to one of the preceding claims, characterised in that the housing (5) is closed, in particular is shaped in the manner of a nacelle, and forms a hollow space (6) in its interior.
EP09749744.0A 2008-05-21 2009-05-13 Azimuth propeller drive unit having a low mounting height for a floating device Not-in-force EP2280862B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008024540A DE102008024540A1 (en) 2008-05-21 2008-05-21 Low installation height azimuth propeller drive for a floating device
PCT/EP2009/055766 WO2009141254A2 (en) 2008-05-21 2009-05-13 Azimuth propeller drive unit having a low mounting height for a floating device

Publications (2)

Publication Number Publication Date
EP2280862A2 EP2280862A2 (en) 2011-02-09
EP2280862B1 true EP2280862B1 (en) 2015-12-23

Family

ID=41050938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09749744.0A Not-in-force EP2280862B1 (en) 2008-05-21 2009-05-13 Azimuth propeller drive unit having a low mounting height for a floating device

Country Status (5)

Country Link
EP (1) EP2280862B1 (en)
DE (1) DE102008024540A1 (en)
DK (1) DK2280862T3 (en)
ES (1) ES2561041T3 (en)
WO (1) WO2009141254A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002263A1 (en) * 2009-04-07 2010-10-14 Zf Friedrichshafen Ag Sailboat Drive
DE102009002264A1 (en) 2009-04-07 2010-10-14 Zf Friedrichshafen Ag Hybrid drive of a sailing ship
DE102012210727A1 (en) 2012-06-25 2014-01-02 Zf Friedrichshafen Ag boot drive
EP2995550A1 (en) 2014-09-11 2016-03-16 ABB Technology AG A propulsion unit
NL2018388B1 (en) 2017-02-16 2018-09-06 Veth Propulsion B V Thruster for propelling a watercraft
CN107235135B (en) * 2017-04-27 2019-04-02 武汉船用机械有限责任公司 A kind of helm of all-direction propeller
EP3428055B1 (en) * 2017-07-11 2020-08-26 Aetc Sapphire Method and device for determining the direction and the amplitude of a force applied to a propulsion pod of a boat
DE102017216818A1 (en) 2017-09-22 2019-03-28 Siemens Aktiengesellschaft Azimutverstellung a gondola
CN109733581B (en) * 2018-12-20 2020-08-07 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） Pod propulsion unit for ship

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040160141A1 (en) * 2002-06-14 2004-08-19 Jean-Yves Dube Electric motor with modular stator ring and improved heat dissipation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3013519A (en) * 1955-02-14 1961-12-19 Reiners Walter Ship propulsion and steering systems
US20010051475A1 (en) * 1996-11-07 2001-12-13 Reinhold Reuter Twin-propeller drive for watercraft
JP3618560B2 (en) * 1998-11-02 2005-02-09 新潟原動機株式会社 Ship propulsion device
FI110599B (en) * 1998-12-22 2003-02-28 Rolls Royce Oy Ab Swivel propeller assembly for a vessel, offshore structure or equivalent
DE20021466U1 (en) * 2000-12-19 2001-05-03 Schottel Gmbh & Co Kg Watercraft with an outboard rudder propeller located beneath its bottom
NL1020217C1 (en) * 2002-03-21 2002-05-23 Wouter Steusel Yacht, provided with electric propulsion and generator unit comprising tubular casing with retractable steering drum and propeller
DE10353566A1 (en) 2003-11-14 2005-06-23 Reinhard Gabriel jet propulsion
DE102005029895A1 (en) * 2005-06-27 2007-01-04 Siemens Ag Direct drive for large drives

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040160141A1 (en) * 2002-06-14 2004-08-19 Jean-Yves Dube Electric motor with modular stator ring and improved heat dissipation

Also Published As

Publication number Publication date
DE102008024540A1 (en) 2009-12-03
ES2561041T3 (en) 2016-02-24
EP2280862A2 (en) 2011-02-09
DK2280862T3 (en) 2016-03-14
WO2009141254A2 (en) 2009-11-26
WO2009141254A3 (en) 2010-11-25

Similar Documents

Publication Publication Date Title
EP2280862B1 (en) Azimuth propeller drive unit having a low mounting height for a floating device
DE10392908B4 (en) Wind turbine and bearing arrangement for it
DE60109447T3 (en) Device for generating electricity from wind energy
EP2310664B1 (en) Method of assembling a submerged power station
EP2419630B1 (en) Wind energy plant and drive device for adjusting a rotor blade
EP2279112B1 (en) Turbo-machine having at least two counter-rotatable rotors and having mechanical torque compensation
EP2605958B1 (en) Electric pitch change system for propeller
DE10255745A1 (en) Directly driven wind power system with bearing integrated in generator has generator rotor or hub radially between and/or axially adjacent to generator stator and rotor and supported on stator housing
EP2630370B1 (en) Assembly for extracting the rotational energy from the rotor hub of the wind turbine of a wind turbine system
EP1425840A2 (en) Wind power current generator
EP2933483A1 (en) Drive system for a wind turbine
EP2379879B1 (en) Generator arrangement for a wind power plant
EP1759987B1 (en) Electric boat drive
EP2729361B1 (en) Actuator device
EP2662278A1 (en) Pivoting device for a ship propeller pod
DE102019123725B4 (en) Lift and flight control unit for an aircraft and aircraft
EP2665642A1 (en) Rudder propeller with an underwater mechanism comprising a planetary gearing
DE102019123726A1 (en) Buoyancy unit for an aircraft and an aircraft
DE102021100135B4 (en) Marine propulsion and ship equipped therewith
EP3034864A1 (en) Rotor hub for a rotor of a wind power station with a rotor axis
EP3807517B1 (en) Turbine
EP3404256A1 (en) Device for adjusting the rotor blades of a flow force installation
DE102012014507A1 (en) Planet carrier for a planetary gear
EP2781449B1 (en) Mechanically driven hubless ship propeller
DE202023106188U1 (en) Externally driven impeller for an aircraft

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20101112

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

17Q First examination report despatched

Effective date: 20130225

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150626

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 766426

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502009011962

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2561041

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20160224

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20160307

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20151223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20151223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160324

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160426

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160531

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160423

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502009011962

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20160926

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502009011962

Country of ref document: DE

REG Reference to a national code

Ref country code: NO

Ref legal event code: MMEP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160513

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20160531

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160513

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160531

Ref country code: NO

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160531

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160513

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160531

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161201

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160531

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160513

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160513

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160513

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 766426

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160513

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160513

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20090513

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160514

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151223

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20181128