EP2161194B1 - Motorised propeller drive for a water vehicle - Google Patents

Motorised propeller drive for a water vehicle Download PDF

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Publication number
EP2161194B1
EP2161194B1 EP09005023.8A EP09005023A EP2161194B1 EP 2161194 B1 EP2161194 B1 EP 2161194B1 EP 09005023 A EP09005023 A EP 09005023A EP 2161194 B1 EP2161194 B1 EP 2161194B1
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EP
European Patent Office
Prior art keywords
propeller
drive
motorized
shaft
water craft
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Not-in-force
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EP09005023.8A
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German (de)
French (fr)
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EP2161194A2 (en
EP2161194A3 (en
Inventor
Klaus Fischer
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DL Fischer GmbH
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DL Fischer GmbH
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Priority to PL09005023T priority Critical patent/PL2161194T3/en
Publication of EP2161194A2 publication Critical patent/EP2161194A2/en
Publication of EP2161194A3 publication Critical patent/EP2161194A3/en
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    • 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
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
    • 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
    • B63H5/1252—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 the ability to move being conferred by gearing in transmission between prime mover and propeller and the propulsion unit being other than in a "Z" configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
    • B63H2025/425—Propulsive elements, other than jets, substantially used for steering or dynamic anchoring only, with means for retracting, or otherwise moving to a rest position outside the water flow around the hull

Definitions

  • the invention relates to a motor propeller drive for a watercraft.
  • a motorized propeller drive may be present in the bow or tail region of a motorboat, for example.
  • the motorized propeller drive can represent the main drive device; However, it is also possible to provide such a motor propeller drive as an alternative motor propeller drive or as an auxiliary drive, for example in a sailboat.
  • the propeller shaft of a conventional motor drive of a watercraft such as a motor boat may be slightly inclined or parallel to the water surface of a body of water in which the vessel is floating.
  • a propeller shaft is usually fixed rigidly to the hull and cooperates with a spaced apart from the propeller rudder blade together.
  • the vessel in question can be moved forward or backward through the water.
  • the rudder blade By appropriately adjusting the rudder blade, the vessel can thereby change its direction of travel.
  • propeller drives are known in which their propeller shaft can be rotated about a vertical axis in both directions.
  • Such a propeller drive can thereby be used not only for locomotion, but also for changing the direction of travel of the relevant vessel.
  • propeller drives may be present in the bow area and in the stern area of the ship in question.
  • the propeller shaft can be rotated about an axis, wherein the propeller shaft can be moved with its at least one propeller and with its drive motor in the direction of this axis in the interior of the watercraft in and out of the same.
  • the propeller shaft can be rotated together with your drive motor around the vertical axis back and forth.
  • the present invention seeks to provide a watercraft, which is equipped with at least two motorized propeller drives, which are completely independent of each other used.
  • the watercraft according to the invention has two propeller drives, wherein the propeller shaft of the second motor propeller drive is rotatable about an axis which is in the idle state of the vehicle approximately perpendicular to the water surface, that is, aligned approximately perpendicular to the waterline of the at rest, floating vehicle.
  • the term "vertical" is intended to include an angle range between zero degrees and about 15 degrees, in order to be able to better counter constraints caused by the design or the interior of the vessel.
  • this propeller shaft can be moved with its propeller into the interior of the vessel and moved out of it. Such a propeller drive can thus be present or absent outside the hull of the watercraft.
  • the propeller shaft with its propeller is not present outside the hull of the vessel, it can not be used for the momentary propulsion of the vessel.
  • a known in the art for example, a rigid propeller shaft having marine engine can be used in a conventional manner to drive the ship. In the extended state, however, can then drive the ship, the second motor propeller drive be used. A conventional motor propeller drive available on the motorboat can then be shut down.
  • the sails can then be used to propel the boat in a manner known per se.
  • the propeller shaft for the second propeller drive can be reciprocated along the vertical axis about which the propeller shaft is swingable back and forth.
  • the propeller shaft can be moved back and forth together with its drive motor.
  • At least one rudder blade is arranged, which has a predetermined fixed distance in the direction of the axis about which the propeller shaft can be rotated.
  • a sailboat such, preferably single rudder blade relative to a motor boat will be relatively large area.
  • the one or more rudder blades may then interact with, for example, the conventional propeller drive, as known per se in conventional marine propeller drives in the prior art.
  • the propeller shaft has two counter-rotatable shaft pieces, each with a propeller.
  • the axes of rotation of the two shaft pieces lie on one axis.
  • the end of the shaft pieces existing two propellers regularly run in the opposite direction of rotation, so that both propellers can be driven simultaneously, regardless of the position of the propeller shaft.
  • the propeller shaft or the two shaft pieces are attached via a bevel gear to a drive motor coupled.
  • the drive motor for the second propeller drive can be accommodated in a housing such that no water can penetrate into the interior of a housing during the joint movement of the housing together with the propeller shaft.
  • the propeller shaft can be present outside of the housing.
  • the housing can be pot-shaped, without a lid or without a watertight lid.
  • the bottom of the housing pierces the drive shaft of the drive motor, at the lower end of the angle gear is fixed to the propeller shafts.
  • the housing can be moved back and forth along an open shaft. In the embodiment shown in the drawing, the shaft axis coincides with the axis about which the propeller shaft can be rotated back and forth.
  • the propeller shaft is present with its at least one propeller within a tunnel. Below the tunnel then at least one rudder blade is firmly attached.
  • the tunnel itself is also fixed to the housing, which is movable in the direction of the axis along which the propeller shaft with its propeller is adjustable back and forth, and can be moved together with the housing in the interior of the watercraft.
  • Fig. 1 is the bottom of the hull 12 of a motor boat 10 can be seen.
  • the motorboat 10 floats in a water, which is to be indicated by the dashed waterline 14.
  • the powerboat 10 can move forward through the water, as indicated by an arrow 16, or in any other direction.
  • the locomotion of the motor boat 10 takes place with a conventional motor propeller drive. From this conventional propeller drive its propeller shaft 18 can be seen with its end connected propeller 20 (propeller). In the present example, the propeller shaft 18 and the propeller 20 is in a concave arched keel area 22.
  • This one type of vault for the propeller shaft 18 and the propeller 20th illustrative under-ship terminates fluently in a V-shaped keel area 24 formed in the front area of the powerboat 10.
  • a motorized propeller drive 30 is present, of which in Fig. 3 his two rudder blades 32, 34 can be seen.
  • Fig. 2 is this propeller drive 30 according to the invention in a opposite Fig. 1 enlarged partial sectional view shown.
  • the motor propeller drive 30 has an electric motor 35 in the present example. This is located in a housing 37.
  • This housing 37 has a circular cylindrical jacket 36, which is closed at the bottom by a correspondingly circular bottom 38. At the top, this housing 37 is open.
  • the bottom 38 is pierced by the output shaft of the electric motor 35, which ends in an existing below the bottom 38 bevel gear 40.
  • two shaft pieces 42, 44 are rotatably connected. These shaft pieces each carry a propeller 46 or 48.
  • the two angle pieces 42, 44 and thus the two propellers 46, 48 rotate in opposite directions.
  • both propellers can be used simultaneously by the electric motor 35.
  • the individual propellers 46, 48 rotate in one or the other direction of rotation, depending on whether the motorboat 10 should go forward or backward.
  • the housing 37 can be moved within an outer housing 50 in the direction of the longitudinal axis 52 of the housing 37 and thus also of the outer housing 50, up and down (double arrow 39 in Fig. 2 ).
  • the housing 37 is thus, so to speak, an elevator car, which can be moved in the direction of its longitudinal axis 52 up and down (39).
  • the angle gear 40 attached to the motor 35 is also moved up and down (39) with the propellers 46, 48.
  • the outer housing 50 is therefore correspondingly large.
  • the angle gear 40 with the two propellers 46, 48 is housed in a circular cross-section tunnel 60.
  • the longitudinal axis 62 of this tunnel 60 coincides with the longitudinal axis of the propeller shaft 64 on which the two propellers 46, 48 are rotatably mounted together.
  • This tunnel 60 is aligned at right angles to the longitudinal axis 52 of the housing 37.
  • the angular gear 40 is aligned so that the two propellers 46, 48 can act in the direction of arrow 16 and thus in the longitudinal direction of the motor boat 10.
  • the tunnel 60 is thus open at the ends.
  • the propellers 46, 48 are ineffective, which relates to the direct drive of the motor boat 10, because the propeller shaft 64 with the two propellers 46, 48 is located in the interior of the motor boat 10 and thus - based on the Fig. 2 - Above the concave keel area 22 and thus not outside of the hull 12 but within the hull of the ship 12th
  • Fig. 3 In contrast to Fig. 2 is in the illustration according to Fig. 3 the housing 37 is moved downwards along the axis 52, namely to its lower extreme position, in which the tunnel 60 fastened to the housing 37 is present outside the hull 12.
  • the tunnel 60 with the two propellers 46, 48 is thus present below the concave keel area 22.
  • the drive for the motorboat 10 is made in this case exclusively via the electric motor 35.
  • the motor boat 10 - By appropriately driving the propeller shaft 64, the motor boat 10 - based on the position of the propeller shaft 64 - in Fig. 3 be moved forwards or backwards.
  • the bevel gear 40 can rotate together with the propeller shaft 64 about the axis 52 back and forth (double arrow 66).
  • FIG. 4 One opposite Fig. 3
  • the 90 degree orientation of the propeller shaft 64 relative to the longitudinal axis 52 is in FIG Fig. 4 shown.
  • a direction change to port or starboard depending on the direction of rotation of the two propellers 46, 48, can be produced by the propeller shaft 90 twisted at 90 degrees.
  • FIGS. 5 and 6 two schematic cross sections through the propeller drive 30 according to the invention are shown.
  • Fig. 5 is aligned in the longitudinal direction of the motor boat 10 propeller shaft 64 within the hull 12 and thus in the interior 70 of the motor boat 10 available.
  • the two rudder blades 32, 34 are always present below the concave keel portion 22 of the hull 12.
  • Fig. 6 is different from Fig. 5 the propeller shaft 64 is moved out of the interior 70 of the motor boat 10 on the interior 70 down.
  • the propeller drive 30 for forward and backward movement of the motor boat 10 and to change its direction of travel only the propeller drive 30 according to the invention used. His two rudder blades 32, 34 are not actively involved.
  • the conventional propeller drive, with its propeller shaft 18 and the propeller 20 is off.
  • FIGS. 7 and 8 show in contrast to the FIGS. 5 and 6 a corresponding longitudinal section through the in FIGS. 5 and 6 illustrated positions of the propeller drive according to the invention.
  • the housing 37 is provided with its bottom 38 in the outer housing 50, that during its up and down movement 39 along the axis 52 no water can penetrate into the housing 37.
  • the housing 37 may be open at the top, since it is present with its upper edge 80 sufficiently far above the waterline 14 both in the retracted and in the extended state.
  • the propeller drive according to the invention can be used in its extended state as the only ship propulsion, which is likely to be the case especially in a sailboat.
  • the control effect of or fixed to it rudder blades is not needed.
  • the propeller drive according to the invention can also form an alternative drive, in addition to a conventional drive present on the ship. For example, it can be used in a slow-speed motorboat, where a relatively low power requirement is needed, rather than a more powerful conventional drive.
  • the rudder blade, or then the (two) rudder blades of the propeller drive according to the invention present in the rear region of a ship can then serve as the effective rudder blade of a conventional propeller drive.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Motor Power Transmission Devices (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die Erfindung betrifft einen motorischen Propellerantrieb für ein Wasserfahrzeug. Ein solcher motorischer Propellerantrieb kann im Bug- oder auch Heckbereich eines beispielsweise Motorbootes vorhanden sein. Der motorische Propellerantrieb kann dabei die Hauptantriebseinrichtung darstellen; es ist allerdings auch möglich, einen solchen motorischen Propellerantrieb als einen alternativen motorischen Propellerantrieb oder auch als Hilfsantrieb beispielsweise bei einem Segelboot vorzusehen.The invention relates to a motor propeller drive for a watercraft. Such a motorized propeller drive may be present in the bow or tail region of a motorboat, for example. The motorized propeller drive can represent the main drive device; However, it is also possible to provide such a motor propeller drive as an alternative motor propeller drive or as an auxiliary drive, for example in a sailboat.

STAND DER TECHNIKSTATE OF THE ART

Die Propellerwelle eines üblichen motorischen Antriebes eines Wasserfahrzeuges wie beispielsweise eines Motorbootes kann leicht geneigt oder parallel zur Wasseroberfläche eines Gewässers, in dem das Wasserfahrzeug schwimmend vorhanden ist, ausgerichtet sein. Eine solche Propellerwelle ist in aller Regel starr am Schiffsrumpf befestigt und wirkt mit einem im Abstand zum Propeller angeordneten Ruderblatt zusammen. Je nach Drehrichtung eines an der Propellerwelle drehbar angeordneten Propellers (Schiffsschraube) kann das betreffende Wasserfahrzeug vorwärts oder rückwärts durchs Wasser bewegt werden. Durch entsprechendes Verstellen des Ruderblattes kann das Wasserfahrzeug dabei seine Fahrtrichtung ändern.The propeller shaft of a conventional motor drive of a watercraft such as a motor boat may be slightly inclined or parallel to the water surface of a body of water in which the vessel is floating. Such a propeller shaft is usually fixed rigidly to the hull and cooperates with a spaced apart from the propeller rudder blade together. Depending on the direction of rotation of a rotatably mounted on the propeller shaft propeller (propeller), the vessel in question can be moved forward or backward through the water. By appropriately adjusting the rudder blade, the vessel can thereby change its direction of travel.

Darüber hinaus sind beispielsweise bei großen Wasserfahrzeugen wie Kreuzfahrtschiffen Propellerantriebe bekannt, bei denen ihre Propellerwelle um eine vertikale Achse in beiden Richtungen verdreht werden kann. Ein solcher Propellerantrieb kann dadurch nicht nur zur Fortbewegung, sondern auch zur Änderung der Fahrtrichtung des betreffenden Wasserfahrzeuges verwendet werden. Bei großen, auch zum Transport von Personen geeigneten Fähren können solche Propellerantriebe im Bugbereich und im Heckbereich des betreffenden Schiffes vorhanden sein.In addition, for example, in large vessels such as cruise ships propeller drives are known in which their propeller shaft can be rotated about a vertical axis in both directions. Such a propeller drive can thereby be used not only for locomotion, but also for changing the direction of travel of the relevant vessel. In the case of large ferries also suitable for transporting persons, such propeller drives may be present in the bow area and in the stern area of the ship in question.

Aus der US 2001/029133 A1 ist ein Wasserfahrzeug mit einem oder mit mehreren motorischen Propellerantrieben bekannt. Die Propellerwelle kann um eine Achse verdreht werden, wobei die Propellerwelle mit ihrem zumindest einem Propeller und mit ihrem Antriebsmotor in Richtung dieser Achse in den Innenraum des Wasserfahrzeuges hinein und aus dem Selben heraus bewegt werden kann. Darüber hinaus kann die Propellerwelle zusammen mit Ihrem Antriebsmotor um die senkrechte Achse hin und her verdreht werden.From the US 2001/029133 A1 is a watercraft with one or more motorized propeller drives known. The propeller shaft can be rotated about an axis, wherein the propeller shaft can be moved with its at least one propeller and with its drive motor in the direction of this axis in the interior of the watercraft in and out of the same. In addition, the propeller shaft can be rotated together with your drive motor around the vertical axis back and forth.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Ausgehend von diesem vorbekannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Wasserfahrzeug anzugeben, das mit zumindest zwei motorischen Propellerantrieben ausgestattet ist, die vollständig unabhängig voneinander einsetzbar sind.Based on this prior art, the present invention seeks to provide a watercraft, which is equipped with at least two motorized propeller drives, which are completely independent of each other used.

Diese Erfindung ist durch die Merkmale des Hauptanspruchs gegeben. Sinnvolle Weiterbildungen der Erfindung sind Gegenstand von sich an den Hauptanspruch anschließenden weiteren Ansprüchen.This invention is given by the features of the main claim. Useful developments of the invention are the subject of further claims appending to the main claim.

Das erfindungsgemäße Wasserfahrzeug besitzt zwei Propellerantriebe, wobei die Propellerwelle des zweiten motorischen Propellerantriebs um eine Achse verdrehbar ist, die im Ruhezustand des Fahrzeuges etwa senkrecht zur Wasseroberfläche, das heißt, etwa senkrecht zur Wasserlinie des in Ruhe befindlichen, schwimmenden Fahrzeuges, ausgerichtet ist. Die Angabe "senkrecht" soll dabei einen Winkelbereich zwischen Null Grad und etwa 15 Grad beinhalten, um durch die Bauart oder das Innere des Wasserfahrzeuges bedingten Zwängen besser begegnen zu können. Außerdem kann diese Propellerwelle mit ihrem Propeller in den Innenraum des Wasserfahrzeuges hineinbewegt und aus demselben herausbewegt werden. Ein solcher Propellerantrieb kann also außerhalb des Rumpfes des Wasserfahrzeuges vorhanden oder nicht vorhanden sein. Sofern die Propellerwelle mit ihrem Propeller nicht außerhalb des Rumpfes des Wasserfahrzeuges vorhanden ist, kann sie für den momentanen Antrieb des Wasserfahrzeuges nicht genutzt werden. In diesem Falle kann ein im Stand der Technik bekannter, beispielsweise eine starre Propellerwelle aufweisender Schiffsmotor in an sich bekannter Weise zum Antrieb des Schiffes verwendet werden. Im ausgefahrenen Zustand kann dann zum Antrieb des Schiffes allerdings der zweite motorische Propellerantrieb verwendet werden. Ein am Motorboot vorhandener konventioneller motorischer Propellerantrieb kann dann stillgelegt werden.The watercraft according to the invention has two propeller drives, wherein the propeller shaft of the second motor propeller drive is rotatable about an axis which is in the idle state of the vehicle approximately perpendicular to the water surface, that is, aligned approximately perpendicular to the waterline of the at rest, floating vehicle. The term "vertical" is intended to include an angle range between zero degrees and about 15 degrees, in order to be able to better counter constraints caused by the design or the interior of the vessel. In addition, this propeller shaft can be moved with its propeller into the interior of the vessel and moved out of it. Such a propeller drive can thus be present or absent outside the hull of the watercraft. If the propeller shaft with its propeller is not present outside the hull of the vessel, it can not be used for the momentary propulsion of the vessel. In this case, a known in the art, for example, a rigid propeller shaft having marine engine can be used in a conventional manner to drive the ship. In the extended state, however, can then drive the ship, the second motor propeller drive be used. A conventional motor propeller drive available on the motorboat can then be shut down.

Es kann also bei einem Motorboot, das neben einem im Stand der Technik bekannten konventionellen Propellerantrieb noch einen zusätzlichen oben beschriebenen Propellerantrieb besitzt, entweder der eine oder der andere Propellerantrieb zum Bewegen des Motorbootes durch ein Gewässer benutzt werden. Es bietet sich in diesem Zusammenhang an, bei konventionellen, sehr leistungsstarken Schiffsantrieben in Fällen, wo lediglich eine relativ geringe Marschfahrt gewünscht wird, den konventionellen Hauptantrieb auszuschalten und lediglich den zusätzlichen - und in diesem Falle leistungsschwächeren - Propellerantrieb einzusetzen.It can therefore be used in a motorboat, which in addition to a known in the prior art conventional propeller drive still another additional propeller drive described above, either one or the other propeller drive for moving the motor boat through a body of water. It makes sense in this context, in conventional, very powerful ship propulsion systems in cases where only a relatively small cruising is desired to turn off the conventional main propulsion and only use the additional - and in this case less powerful - propeller drive.

Bei einem Segelboot können dann, wenn die Propellerwelle mit ihrem Propeller nicht außerhalb des Schiffsrumpfes vorhanden ist, die Segel in an sich bekannter Weise zum Vortrieb des Bootes benutzt werden.In a sailboat, if the propeller shaft with its propeller is not present outside of the hull, the sails can then be used to propel the boat in a manner known per se.

Darüber hinaus kann bei einem Motorboot die Propellerwelle für den zweiten Propellerantrieb längs der senkrechten Achse, um die die Propellerwelle hin und her verschwenkbar ist, hin- und herbewegt werden. Dabei kann die Propellerwelle zusammen mit ihrem Antriebsmotor hin- und herbewegt werden.In addition, in a motorboat, the propeller shaft for the second propeller drive can be reciprocated along the vertical axis about which the propeller shaft is swingable back and forth. The propeller shaft can be moved back and forth together with its drive motor.

Unterhalb der Propellerwelle, und damit ebenfalls außerhalb des Schiffsrumpfes, ist erfindungsgemäß zumindest ein Ruderblatt angeordnet, das in Richtung der Achse, um die die Propellerwelle gedreht werden kann, einen vorbestimmten festen Abstand aufweist. Bei einem Segelboot wird ein solches, vorzugsweise einziges Ruderblatt gegenüber dem eines Motorbootes vergleichsweise großflächiger sein. Auch im eingefahrenen Zustand des zusätzlichen motorischen Propellerantriebes ist das zumindest eine Ruderblatt außerhalb des Rumpfes vorhanden. Das eine oder die mehreren Ruderblätter können dann beispielsweise mit dem konventionellen Propellerantrieb zusammenwirken, wie dies im Stand der Technik bei konventionellen Schiffsschraubenantrieben an sich bekannt ist.Below the propeller shaft, and thus also outside the hull, according to the invention at least one rudder blade is arranged, which has a predetermined fixed distance in the direction of the axis about which the propeller shaft can be rotated. In a sailboat, such, preferably single rudder blade relative to a motor boat will be relatively large area. Even in the retracted state of the additional motor propeller drive that is at least one rudder blade outside the hull available. The one or more rudder blades may then interact with, for example, the conventional propeller drive, as known per se in conventional marine propeller drives in the prior art.

In dem in der Zeichnung dargestellten Ausführungsbeispiel weist die Propellerwelle zwei gegenläufig rotierbare Wellenstücke mit jeweils einem Propeller auf. Die Rotationsachsen der beiden Wellenstücke liegen auf einer Achse. Die endseitig der Wellenstücke vorhandenen beiden Propeller laufen regelmäßig in entgegengesetzter Umdrehungsrichtung, so dass beide Propeller gleichzeitig, unabhängig von der Stellung der Propellerwelle, angetrieben werden können. Im vorliegenden Beispielsfall ist die Propellerwelle beziehungsweise sind die beiden Wellenstücke über ein Winkelgetriebe an einem Antriebsmotor ankoppelbar befestigt.In the embodiment shown in the drawing, the propeller shaft has two counter-rotatable shaft pieces, each with a propeller. The axes of rotation of the two shaft pieces lie on one axis. The end of the shaft pieces existing two propellers regularly run in the opposite direction of rotation, so that both propellers can be driven simultaneously, regardless of the position of the propeller shaft. In the present For example, the propeller shaft or the two shaft pieces are attached via a bevel gear to a drive motor coupled.

Der Antriebsmotor für den zweiten Propellerantrieb kann so in einem Gehäuse untergebracht sein, dass bei der gemeinsamen Bewegung des Gehäuses zusammen mit der Propellerwelle kein Wasser in den Innenraum eines Gehäuses eindringen kann. Die Propellerwelle kann dabei außerhalb des Gehäuses vorhanden sein.The drive motor for the second propeller drive can be accommodated in a housing such that no water can penetrate into the interior of a housing during the joint movement of the housing together with the propeller shaft. The propeller shaft can be present outside of the housing.

Es hat sich herausgestellt, dass das Gehäuse topfartig, ohne Deckel beziehungsweise ohne wasserdichten Deckel, ausgebildet sein kann. Den Boden des Gehäuses durchstößt dabei die Antriebswelle des Antriebsmotors, an dessen unterem Ende das Winkelgetriebe mit den Propellerwellen befestigt ist. Das Gehäuse kann längs eines offenen Schachtes hin- und herbewegt werden. In dem in der Zeichnung dargestellten Ausführungsbeispiel fällt die Schachtachse mit derjenigen Achse, um die die Propellerwelle hin und her gedreht werden kann, zusammen.It has been found that the housing can be pot-shaped, without a lid or without a watertight lid. The bottom of the housing pierces the drive shaft of the drive motor, at the lower end of the angle gear is fixed to the propeller shafts. The housing can be moved back and forth along an open shaft. In the embodiment shown in the drawing, the shaft axis coincides with the axis about which the propeller shaft can be rotated back and forth.

Gemäß dem in der Zeichnung dargestellten Ausführungsbeispiel ist die Propellerwelle mit ihrem zumindest einen Propeller innerhalb eines Tunnels vorhanden. Unterhalb des Tunnels ist dann das zumindest eine Ruderblatt fest angebracht. Der Tunnel selber ist ebenfalls an dem Gehäuse befestigt, das in Richtung der Achse, längs der die Propellerwelle mit ihrem Propeller hin und her verstellbar ist, bewegbar ist, und kann zusammen mit dem Gehäuse in den Innenraum des Wasserfahrzeuges hineinbewegt werden.According to the embodiment shown in the drawing, the propeller shaft is present with its at least one propeller within a tunnel. Below the tunnel then at least one rudder blade is firmly attached. The tunnel itself is also fixed to the housing, which is movable in the direction of the axis along which the propeller shaft with its propeller is adjustable back and forth, and can be moved together with the housing in the interior of the watercraft.

Weitere Vorteile und Merkmale der Erfindung sind den in den Ansprüchen ferner angegebenen Merkmalen sowie dem nachstehenden Ausführungsbeispiel zu entnehmen.Further advantages and features of the invention are given in the claims further specified features and the following embodiment.

KURZE BESCHREIBUNG DER ZEICHNUNGBRIEF DESCRIPTION OF THE DRAWING

Die Erfindung wird im Folgenden anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben und erläutert. Es zeigen:

Fig. 1
die Untersicht auf ein sowohl mit einem konventionellen motorischen als auch mit einem erfindungsgemäßen motorischen Propellerantrieb ausgestattetes Motorboot,
Fig. 2
einen teilweisen Längsschnitt durch das Motorboot nach Fig. 1, mit dem erfindungsgemäßen Propellerantrieb in seiner eingefahrenen Stellung,
Fig. 3
eine Darstellung ähnlich der von Fig. 2 , mit ausgefahrenem motorischen Propellerantrieb nach der Erfindung,
Fig. 4
eine Darstellung ähnlich der von Fig. 3, mit gegenüber Fig. 3 um 90 Grad verdrehtem motorischen Propellerantrieb nach der Erfindung,
Fig. 5
einen teilweisen Querschnitt durch das Motorboot nach Fig. 1, mit eingefahrenem Propellerantrieb nach der Erfindung,
Fig. 6
einen teilweisen Querschnitt durch das Motorboot nach Fig. 1, mit gegenüber Fig. 5 ausgefahrenem Propellerantrieb nach der Erfindung,
Fig. 7
einen teilweisen Längsschnitt durch das Motorboot nach Fig. 1, mit eingefahrenem Propellerantrieb nach der Erfindung und
Fig. 8
eine Darstellung ähnlich der von Fig. 7, mit ausgefahrenem Propellerantrieb nach der Erfindung.
The invention will be described and explained in more detail below with reference to the embodiment shown in the drawing. Show it:
Fig. 1
the bottom view of a motor boat equipped with both a conventional motor and a motorized propeller drive according to the invention,
Fig. 2
a partial longitudinal section through the motorboat after Fig. 1 , with the propeller drive according to the invention in its retracted position,
Fig. 3
a representation similar to that of Fig. 2 , with extended motor propeller drive according to the invention,
Fig. 4
a representation similar to that of Fig. 3 , with opposite Fig. 3 90 degree twisted motor propeller drive according to the invention,
Fig. 5
a partial cross section of the motorboat after Fig. 1 , with retracted propeller drive according to the invention,
Fig. 6
a partial cross section of the motorboat after Fig. 1 , with opposite Fig. 5 extended propeller drive according to the invention,
Fig. 7
a partial longitudinal section through the motorboat after Fig. 1 , with retracted propeller drive according to the invention and
Fig. 8
a representation similar to that of Fig. 7 , with extended propeller drive according to the invention.

WEGE ZUM AUSFÜHREN DER ERFINDUNGWAYS FOR CARRYING OUT THE INVENTION

In Fig. 1 ist die Unterseite des Schiffsrumpfes 12 eines Motorbootes 10 zu erkennen. Das Motorboot 10 schwimmt in einem Wasser, was durch die gestrichelte Wasserlinie 14 angedeutet werden soll. Das Motorboot 10 kann sich in Vorwärtsfahrt durch das Wasser bewegen, was durch einen Pfeil 16 verdeutlicht wird, oder auch in beliebigen anderen Richtungen.In Fig. 1 is the bottom of the hull 12 of a motor boat 10 can be seen. The motorboat 10 floats in a water, which is to be indicated by the dashed waterline 14. The powerboat 10 can move forward through the water, as indicated by an arrow 16, or in any other direction.

Die Fortbewegung des Motorbootes 10 erfolgt mit einem konventionellen motorischen Propellerantrieb. Von diesem konventionellen Propellerantrieb ist seine Propellerwelle 18 mit seinem endseitig angeschlossenen Propeller 20 (Schiffsschraube) zu erkennen. Im vorliegenden Beispielsfall befindet sich die Propellerwelle 18 und der Propeller 20 in einem konkav ausgewölbten Kielbereich 22. Dieses eine Art Gewölbe für die Propellerwelle 18 und den Propeller 20 darstellende Unterschiff endet fließend in einem im Vorderbereich des Motorbootes 10 ausgeformten V-förmigen Kielbereich 24.The locomotion of the motor boat 10 takes place with a conventional motor propeller drive. From this conventional propeller drive its propeller shaft 18 can be seen with its end connected propeller 20 (propeller). In the present example, the propeller shaft 18 and the propeller 20 is in a concave arched keel area 22. This one type of vault for the propeller shaft 18 and the propeller 20th illustrative under-ship terminates fluently in a V-shaped keel area 24 formed in the front area of the powerboat 10.

Im Abstand zum Propeller 20 ist hinter demselben ein erfinderischer motorischer Propellerantrieb 30 vorhanden, von dem in Fig. 3 seine zwei Ruderblätter 32, 34 zu erkennen sind. In Fig. 2 ist dieser erfindungsgemäße Propellerantrieb 30 in einer gegenüber Fig. 1 vergrößerten Teilschnitt-Darstellung dargestellt.At a distance from the propeller 20 behind the same an inventive motorized propeller drive 30 is present, of which in Fig. 3 his two rudder blades 32, 34 can be seen. In Fig. 2 is this propeller drive 30 according to the invention in a opposite Fig. 1 enlarged partial sectional view shown.

Der erfindungsgemäße motorische Propellerantrieb 30 besitzt einen im vorliegenden Beispielsfall Elektromotor 35. Dieser befindet sich in einem Gehäuse 37. Dieses Gehäuse 37 besitzt einen kreiszylindrischen Mantel 36, der unten durch einen dementsprechend kreisförmigen Boden 38 verschlossen ist. Oben ist dieses Gehäuse 37 offen. Der Boden 38 wird von der Abtriebswelle des Elektromotors 35 durchstoßen, die in einem unterhalb des Bodens 38 vorhandenen Winkelgetriebe 40 endet. An dem Winkelgetriebe 40 sind zwei Wellenstücke 42, 44 drehfest angeschlossen. Diese Wellenstücke tragen jeweils einen Propeller 46 beziehungsweise 48. Die beiden Winkelstücke 42, 44 und damit die beiden Propeller 46, 48 drehen sich gegenläufig. Dadurch können durch den Elektromotor 35 beide Propeller gleichzeitig benutzt werden. Dabei drehen sich die einzelnen Propeller 46, 48 in die eine oder die andere Umdrehungsrichtung, je nach dem, ob das Motorboot 10 vorwärts oder rückwärts fahren soll.The motor propeller drive 30 according to the invention has an electric motor 35 in the present example. This is located in a housing 37. This housing 37 has a circular cylindrical jacket 36, which is closed at the bottom by a correspondingly circular bottom 38. At the top, this housing 37 is open. The bottom 38 is pierced by the output shaft of the electric motor 35, which ends in an existing below the bottom 38 bevel gear 40. At the angle gear 40, two shaft pieces 42, 44 are rotatably connected. These shaft pieces each carry a propeller 46 or 48. The two angle pieces 42, 44 and thus the two propellers 46, 48 rotate in opposite directions. As a result, both propellers can be used simultaneously by the electric motor 35. In this case, the individual propellers 46, 48 rotate in one or the other direction of rotation, depending on whether the motorboat 10 should go forward or backward.

Das Gehäuse 37 lässt sich innerhalb eines Außengehäuses 50 in Richtung der Längsachse 52 des Gehäuses 37 und damit auch des Außengehäuses 50, nach oben und unten verfahren (Doppelpfeil 39 in Fig. 2). Das Gehäuse 37 ist damit gleichsam eine Fahrstuhlkabine, die in Richtung ihrer Längsachse 52 nach oben und unten (39) verfahren werden kann. Bei dem Verfahren des Gehäuses 37 wird auch das an dem Motor 35 anhängende Winkelgetriebe 40 mit den Propellern 46, 48 mit nach oben und unten (39) verfahren. Das Außengehäuse 50 ist daher entsprechend groß.The housing 37 can be moved within an outer housing 50 in the direction of the longitudinal axis 52 of the housing 37 and thus also of the outer housing 50, up and down (double arrow 39 in Fig. 2 ). The housing 37 is thus, so to speak, an elevator car, which can be moved in the direction of its longitudinal axis 52 up and down (39). In the process of the housing 37, the angle gear 40 attached to the motor 35 is also moved up and down (39) with the propellers 46, 48. The outer housing 50 is therefore correspondingly large.

Das Winkelgetriebe 40 mit den beiden Propellern 46, 48 ist in einem im Querschnitt kreisförmigen Tunnel 60 untergebracht. Die Längsachse 62 dieses Tunnels 60 fällt mit der Längsachse der Propellerwelle 64, auf der die beiden Propeller 46, 48 rotierbar angebracht sind, zusammen. Dieser Tunnel 60, ist rechtwinklig zur Längsachse 52 des Gehäuses 37 ausgerichtet.The angle gear 40 with the two propellers 46, 48 is housed in a circular cross-section tunnel 60. The longitudinal axis 62 of this tunnel 60 coincides with the longitudinal axis of the propeller shaft 64 on which the two propellers 46, 48 are rotatably mounted together. This tunnel 60, is aligned at right angles to the longitudinal axis 52 of the housing 37.

Gemäß Fig. 2 ist das Winkelgetriebe 40 so ausgerichtet, dass die beiden Propeller 46, 48 in Richtung des Pfeils 16 und damit in Längsrichtung des Motorbootes 10 wirken können. Der Tunnel 60 ist also endseitig offen. In der in Fig. 2 dargestellten Situation sind die Propeller 46, 48 wirkungslos, was den unmittelbaren Antrieb des Motorbootes 10 betrifft, denn die Propellerwelle 64 mit den beiden Propellern 46, 48 befindet sich im Innenraum des Motorbootes 10 und damit - bezogen auf die Fig. 2 - oberhalb des konkaven Kielbereiches 22 und damit nicht außerhalb des Schiffsrumpfes 12 sondern innerhalb des Schiffsrumpfes 12.According to Fig. 2 the angular gear 40 is aligned so that the two propellers 46, 48 can act in the direction of arrow 16 and thus in the longitudinal direction of the motor boat 10. The tunnel 60 is thus open at the ends. In the in Fig. 2 the situation shown, the propellers 46, 48 are ineffective, which relates to the direct drive of the motor boat 10, because the propeller shaft 64 with the two propellers 46, 48 is located in the interior of the motor boat 10 and thus - based on the Fig. 2 - Above the concave keel area 22 and thus not outside of the hull 12 but within the hull of the ship 12th

Aus dem Schiffsrumpf 12 ragen bei der Darstellung gemäß Fig. 2 lediglich die beiden Ruderblätter 32, 34 nach unten aus dem konkaven Kielbereich 22 heraus. Die beiden Ruderblätter 32, 34 können in dieser Stellung des Gehäuses 37 nur mit dem Propeller 20 der Propellerwelle 18 (Fig. 1) zusammenwirken und stellen damit die Ruderanlage für den konventionellen motorischen Propellerantrieb dar. Der Elektromotor 35 ist bei dieser Antriebsvariante für das Motorboot 10 außer Betrieb.From the hull 12 protrude in the representation according to Fig. 2 only the two rudder blades 32, 34 down out of the concave keel portion 22 out. The two rudder blades 32, 34 can in this position of the housing 37 only with the propeller 20 of the propeller shaft 18 (FIG. Fig. 1 ) and thus represent the steering gear for the conventional motor propeller drive. The electric motor 35 is in this drive variant for the motor boat 10 out of service.

Im Gegensatz zur Fig. 2 ist bei der Darstellung gemäß Fig. 3 das Gehäuse 37 längs der Achse 52 nach unten verfahren und zwar in seine untere extreme Stellung, in der der an dem Gehäuse 37 befestigte Tunnel 60 außerhalb des Schiffsrumpfes 12 vorhanden ist. Der Tunnel 60 mit den beiden Propellern 46, 48 ist also unterhalb des konkaven Kielbereiches 22 vorhanden. Der Antrieb für das Motorboot 10 wird in diesem Falle ausschließlich über den Elektromotor 35 hergestellt. Durch entsprechendes Antreiben der Propellerwelle 64 kann das Motorboot 10 - bezogen auf die Stellung der Propellerwelle 64 - in Fig. 3 nach vorwärts oder rückwärts verfahren werden. Das Winkelgetriebe 40 lässt sich zusammen mit der Propellerwelle 64 um die Achse 52 hin und her verdrehen (Doppelpfeil 66). Entsprechend der Rotationsstellung der Propellerwelle 64 bezogen auf die Längsachse 52 kann dann mit den Propellern 46, 48 auch eine Richtungsänderung des Motorbootes 10 bewirkt werden, wobei die unten an dem Tunnel 60 anhängenden beiden Ruderblätter 34, 32 zur Richtungsänderung nicht benötigt werden.In contrast to Fig. 2 is in the illustration according to Fig. 3 the housing 37 is moved downwards along the axis 52, namely to its lower extreme position, in which the tunnel 60 fastened to the housing 37 is present outside the hull 12. The tunnel 60 with the two propellers 46, 48 is thus present below the concave keel area 22. The drive for the motorboat 10 is made in this case exclusively via the electric motor 35. By appropriately driving the propeller shaft 64, the motor boat 10 - based on the position of the propeller shaft 64 - in Fig. 3 be moved forwards or backwards. The bevel gear 40 can rotate together with the propeller shaft 64 about the axis 52 back and forth (double arrow 66). According to the rotational position of the propeller shaft 64 relative to the longitudinal axis 52 can then be effected with the propellers 46, 48 and a change in direction of the motor boat 10, wherein the bottom of the tunnel 60 attached two rudder blades 34, 32 are not required for changing direction.

Eine gegenüber Fig. 3 um 90 Grad verdrehte Ausrichtung der Propellerwelle 64 bezogen auf die Längsachse 52 ist in Fig. 4 dargestellt. Bezogen auf den eine Vorwärtsbewegung darstellenden Pfeil 16 kann durch die 90 Grad verdrehte Propellerwelle 64 eine Richtungsänderung nach Backbord oder Steuerbord, je nach Umdrehungsrichtung der beiden Propeller 46, 48 hergestellt werden.One opposite Fig. 3 The 90 degree orientation of the propeller shaft 64 relative to the longitudinal axis 52 is in FIG Fig. 4 shown. Based on the arrow 16 representing a forward movement, a direction change to port or starboard, depending on the direction of rotation of the two propellers 46, 48, can be produced by the propeller shaft 90 twisted at 90 degrees.

In Fig. 5 und 6 sind zwei schematisierte Querschnitte durch den erfindungsgemäßen Propellerantrieb 30 dargestellt. In Fig. 5 ist die in Längsrichtung des Motorbootes 10 ausgerichtete Propellerwelle 64 innerhalb des Schiffsrumpfes 12 und damit im Innenraum 70 des Motorbootes 10 vorhanden. Die beiden Ruderblätter 32, 34 sind immer unterhalb des konkaven Kielbereichs 22 des Schiffsrumpfes 12 vorhanden.In FIGS. 5 and 6 two schematic cross sections through the propeller drive 30 according to the invention are shown. In Fig. 5 is aligned in the longitudinal direction of the motor boat 10 propeller shaft 64 within the hull 12 and thus in the interior 70 of the motor boat 10 available. The two rudder blades 32, 34 are always present below the concave keel portion 22 of the hull 12.

In Fig. 6 ist im Unterschied zur Fig. 5 die Propellerwelle 64 aus dem Innenraum 70 des Motorbootes 10 an dem Innenraum 70 nach unten herausgefahren vorhanden. In diesem Fall wird, wie vorstehend im Zusammenhang mit Fig. 4 beschrieben, zum Vorwärts- und Rückwärtsbewegen des Motorbootes 10 sowie zum Ändern seiner Fahrtrichtung lediglich der erfindungsgemäße Propellerantrieb 30 verwendet. Seine beiden Ruderblätter 32, 34 wirken dabei aktiv nicht mit. Der konventionelle Propellerantrieb, mit seiner Propellerwelle 18 und dem Propeller 20 ist ausgeschaltet.In Fig. 6 is different from Fig. 5 the propeller shaft 64 is moved out of the interior 70 of the motor boat 10 on the interior 70 down. In this case, as related to above Fig. 4 described, for forward and backward movement of the motor boat 10 and to change its direction of travel only the propeller drive 30 according to the invention used. His two rudder blades 32, 34 are not actively involved. The conventional propeller drive, with its propeller shaft 18 and the propeller 20 is off.

Die Fig. 7 und 8 zeigen im Gegensatz zu den Fig. 5 und 6 einen entsprechenden Längsschnitt durch die in Fig. 5 und 6 dargestellten Stellungen des erfindungsgemäßen Propellerantriebes.The FIGS. 7 and 8 show in contrast to the FIGS. 5 and 6 a corresponding longitudinal section through the in FIGS. 5 and 6 illustrated positions of the propeller drive according to the invention.

Das Gehäuse 37 ist mit seinem Boden 38 so in dem Außengehäuse 50 vorhanden, dass bei seiner Hoch- und Runterbewegung 39 längs der Achse 52 kein Wasser in das Gehäuse 37 eindringen kann. Das Gehäuse 37 kann oben offen sein, da es sowohl im eingefahrenen als auch im ausgefahrenen Zustand mit seinem oberen Rand 80 ausreichend weit oberhalb der Wasserlinie 14 vorhanden ist.The housing 37 is provided with its bottom 38 in the outer housing 50, that during its up and down movement 39 along the axis 52 no water can penetrate into the housing 37. The housing 37 may be open at the top, since it is present with its upper edge 80 sufficiently far above the waterline 14 both in the retracted and in the extended state.

Der erfindungsgemäße Propellerantrieb kann in seinem ausgefahrenen Zustand als alleiniger Schiffsantrieb benutzt werden, was insbesondere bei einem Segelboot der Fall sein dürfte. Die Steuerwirkung des oder der an ihm fest angebrachten Ruderblätter wird dabei nicht benötigt. Der erfindungsgemäße Propellerantrieb kann auch einen alternativen Antrieb, neben einem am Schiff vorhandenen konventionellen Antrieb, bilden. So kann er beispielsweise bei einem Motorboot bei einer Langsam-Fahrt, bei der eine relativ geringe Leistungsanforderung nötig ist, statt eines leistungsstärkeren konventionellen Antriebs eingesetzt werden. Im eingefahrenen Zustand kann dann das Ruderblatt, beziehungsweise können dann die (beiden) Ruderblätter des im Heckbereich eines Schiffes vorhandenen erfindungsgemäßen Propellerantriebes als wirksames Ruderblatt eines konventionellen Propellerantriebes dienen.The propeller drive according to the invention can be used in its extended state as the only ship propulsion, which is likely to be the case especially in a sailboat. The control effect of or fixed to it rudder blades is not needed. The propeller drive according to the invention can also form an alternative drive, in addition to a conventional drive present on the ship. For example, it can be used in a slow-speed motorboat, where a relatively low power requirement is needed, rather than a more powerful conventional drive. When retracted, the rudder blade, or then the (two) rudder blades of the propeller drive according to the invention present in the rear region of a ship, can then serve as the effective rudder blade of a conventional propeller drive.

Claims (9)

  1. Water craft (10)
    - having a first motorized propeller drive,
    - having a second motorized propeller drive (30),
    - wherein the at least one propeller shaft (64) of the second motorized propeller drive (30) can be mounted rotatably about an axis (52) which is oriented roughly at an angle between zero degrees and roughly 15 degrees perpendicularly to the water line (14) of the water craft (10) when the water craft (10) is stationary,
    - wherein this propeller shaft (64) of the second motorized propeller drive (30) with its at least one propeller (46, 48) and with its drive motor (35) can be moved in the direction of this axis (52) into the inside (70) of the water craft (10) and out of the same,
    - wherein this propeller shaft (64) of the second motorized propeller drive (30) along with its drive motor (35) can be rotated (66) back and forth about the perpendicular axis (52),
    - characterized in that
    - at least one rudder blade (32, 34) is disposed beneath the propeller shaft (64) of the second motorized propeller drive (30),
    - in the retracted state of the propeller shaft (64) of the second motorized propeller drive (30), the at least one rudder blade (32, 34) is located outside the hull (12) of the water craft (10), such that it can be illuminated by the propeller (20) of the first motorized propeller drive, in which case the propeller shaft (18) thereof is slightly tilted or located parallel to the water surface, so that the at least one rudder blade (32, 34) constitutes a rudder blade for the first motorized propeller drive.
  2. Water craft according to Claim 1,
    - characterized in that
    - the propeller shaft (64) of the second motorized propeller drive (30) has two shaft pieces (42, 44) rotatable in opposite directions, each having a propeller (46, 48),
    - the rotational axes of the two shaft pieces (42, 44) lie on a straight line.
  3. Water craft according to Claim 2,
    - characterized in that
    - the propeller shaft (64) of the second motorized propeller drive (30) or the two shaft pieces (42, 44) is/are coupled to a drive motor (35) via an angular gear (40).
  4. Water craft according to one of the preceding claims,
    - characterized in that
    - the drive motor (35) of the second motorized propeller drive (30) is located in a housing (37) of this kind, that no water can penetrate the inside of the housing (37) when the housing (37) moves along with the propeller shaft (64).
  5. Water craft according to Claim 4,
    - characterized in that
    - the propeller shaft (64) of the second motorized propeller drive (30) is located outside the housing (37).
  6. Water craft according to Claim 4 or 5,
    - characterized in that
    - the housing (37) of the second motorized propeller drive (30) has a pot-like design, without a lid or without a watertight lid.
  7. Water craft according to one of the preceding claims,
    - characterized in that
    - the housing (37) of the second motorized propeller drive (30) can be moved (39) back and forth along an open, shaft-like outer housing (50).
  8. Water craft according to one of the preceding claims,
    - characterized in that
    - the propeller shaft (64) of the second motorized propeller drive (30) is located with its at least one propeller (46, 48) within a tunnel (60),
    - the at least one rudder blade (32, 34) is fastened to the tunnel (60),
    - the tunnel (60) is fastened to the housing (37).
  9. Water craft according to one of the preceding claims,
    - characterized in that
    - at least one motorized drive (30) is located in the stem and/or bow section of the water craft (10).
EP09005023.8A 2008-09-03 2009-04-04 Motorised propeller drive for a water vehicle Not-in-force EP2161194B1 (en)

Priority Applications (1)

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DE202008011699U DE202008011699U1 (en) 2008-09-03 2008-09-03 Motorized propeller drive for a watercraft

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EP2161194A3 EP2161194A3 (en) 2013-07-17
EP2161194B1 true EP2161194B1 (en) 2015-03-04

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Publication number Priority date Publication date Assignee Title
US8894453B2 (en) 2012-09-26 2014-11-25 Robert Case Shallow-draft watercraft propulsion and steering apparatus
US9260173B2 (en) 2012-09-26 2016-02-16 Robert Case Shallow-draft watercraft propulsion and steering apparatus
WO2014052531A1 (en) * 2012-09-26 2014-04-03 Robert Case Shallow-draft watercraft propulsion and steering apparatus
CN105035289B (en) * 2015-09-19 2017-07-07 大连碧蓝节能环保科技有限公司 Full circle swinging series connection culvert type marine propeller
CN106005330A (en) * 2016-06-28 2016-10-12 张学衡 Invisible missile speedboat
SE542122C2 (en) * 2016-12-07 2020-02-25 Kongsberg Maritime Sweden Ab A pod unit or azimuth thruster having a fin arrangement for reducing the azimuthal torque
IT201800010227A1 (en) * 2018-11-12 2020-05-12 Hytem S R L Casing for boats.
WO2024067988A1 (en) * 2022-09-30 2024-04-04 Volvo Penta Corporation Marine drive unit with a non-cylindrical housing
WO2024067989A1 (en) * 2022-09-30 2024-04-04 Volvo Penta Corporation Adjustable marine drive system

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DE1136907B (en) * 1960-02-22 1962-09-20 Peter Jastram Steering screw assembly for watercraft
US3685481A (en) * 1970-10-02 1972-08-22 Gilbert G Mansell Fishing boat
US6458004B2 (en) * 2000-02-15 2002-10-01 Van Breems Martinus Electric propulsion systems
DE10159427A1 (en) * 2001-12-04 2003-06-12 Sea Trade As Oslo Device for correcting the course of POD-driven ships

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EP2161194A3 (en) 2013-07-17
DE202008011699U1 (en) 2008-11-06
PL2161194T3 (en) 2015-08-31

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