DE4234584A1 - Drive for counter-rotating propellers, esp. for ship - applies opposite torque to propellers and can be controlled to change propeller speeds - Google Patents

Drive for counter-rotating propellers, esp. for ship - applies opposite torque to propellers and can be controlled to change propeller speeds

Info

Publication number
DE4234584A1
DE4234584A1 DE19924234584 DE4234584A DE4234584A1 DE 4234584 A1 DE4234584 A1 DE 4234584A1 DE 19924234584 DE19924234584 DE 19924234584 DE 4234584 A DE4234584 A DE 4234584A DE 4234584 A1 DE4234584 A1 DE 4234584A1
Authority
DE
Germany
Prior art keywords
propellers
drive
propeller
counter
torque
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.)
Withdrawn
Application number
DE19924234584
Other languages
German (de)
Inventor
Joerg Albrecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19924234584 priority Critical patent/DE4234584A1/en
Publication of DE4234584A1 publication Critical patent/DE4234584A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/30—Mounting of propulsion plant or unit, e.g. for anti-vibration purposes
    • B63H21/302—Mounting of propulsion plant or unit, e.g. for anti-vibration purposes with active vibration damping
    • 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
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
    • 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
    • B63H2005/1258—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis with electric power transmission to propellers, i.e. with integrated electric propeller motors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Gear Transmission (AREA)

Abstract

The propeller driver is kept in a torsionless position, and applies opposite torque to provide variable rotation for propellers. Several drivers can be directly coupled or coupled through gears to reduce or increase propeller speed. Torque is applied to one propeller and counter-torque is provided by the second propeller. The counterbalancing of the propellers provides for force equilibrium, and obviates the need for several gears. Several gears can be included, but they are optional. Two or more motors can be used and the direction of rotation of the motors affects the redn. or increase in propeller speed. ADVANTAGE - Reduced vibration and power loss.

Description

Viele Antriebe von contrarotierenden Propellern sind dadurch gekennzeichnet, daß der gute hydrodynamische Wirkungsgrad durch Getriebereibung und Lagerreibung vermindert wird.Many drives of contrarotating propellers are thereby characterized in that the good hydrodynamic efficiency Gear friction and bearing friction is reduced.

Weiter werden gerade durch die Anordnung der Propeller, direkt hintereinander, hydrodynamische Druckschwankungen verursacht, welche als Vibrationen über Wellen, Getriebe und Antriebsmaschine in die Fundamente gelangen können.Further straight through the arrangement of the propellers in succession, causing hydrodynamic pressure fluctuations, which as vibrations across shafts, gears and prime mover can get into the foundations.

Eine Verbesserung solcher Antriebe liegt also in der gleichzeitigen Reduzierung der Vibrationen, der Reibungsverluste und der Fundamente.An improvement of such drives lies in the simultaneous Reduction of vibrations, friction losses and foundations.

Die Lösung all dieser Probleme liegt in der Lagerung der Antriebs­ maschine und des Anschlusses der Leistungsabtriebe.The solution to all of these problems lies in the mounting of the drive machine and the connection of the power drives.

Das Gegenmoment wird hier nicht, wie bei herkömmlichen Anlagen, durch ein Fundament aufgenommen, sondern dynamisch durch einen zweiten Propeller, welcher das Gegenmoment im Rahmen des Kräftegleichgewichts aufnimmt. Dadurch wird das Gegenmoment letztlich vom Arbeitsmedium des zweiten Propellers aufgenommen.The counter moment is not here, as with conventional systems one foundation picked up, but dynamically by a second Propeller, which creates the counter moment within the balance of forces records. As a result, the counter moment is ultimately from the working medium of second propeller added.

Durch die Nichteinleitung des Gegenmomentes in die Fundamente werden auch die Schwankungen des Gegenmomentes, und somit die Vibrationen, nicht in die Lagerfundamente eingeleitet.By not initiating the counter moment in the foundations also the fluctuations of the counter moment, and thus the vibrations, not introduced into the camp foundations.

Ausgenommen sind die durch Lagerreibung entstehenden Kräfte und axiale Kräfte, welche dort eingeleitet werden.The forces and forces arising from bearing friction are excluded axial forces that are introduced there.

Die Drehzahl der Antriebsmaschine verteilt sich dann so auf beide Propeller, bis ein Kräftegleichgewicht, gekennzeichnet durch die Kennlinien der beteiligten Komponenten, eintritt.The engine speed is then distributed to both Propeller until a balance of power, characterized by the Characteristic curves of the components involved occurs.

Eben diese Aufteilung der Drehzahlen aber, macht eine oder mehrere Getriebestufen überflüssig.But this division of the speeds does one or more Gear stages unnecessary.

Man kann das Ganze auch mit zwei oder mehreren hintereinander angeschlossenen Motoren verwirklichen, wobei die Antriebswelle eines Motors dann statt mit einem Propeller mit dem Gehäuse des nächsten Motors gekoppelt ist. Durch die Drehrichtung der Motoren können nun Drehzahlen reduziert oder vergrößert werden.You can do the whole thing with two or more in a row Realize connected motors, the drive shaft of a Motor then with the casing of the next instead of with a propeller Motors is coupled. The direction of rotation of the motors can now Speeds are reduced or increased.

Als einfaches Beispiel mit einem Motor wird hier ein Außenbord oder Z-Antrieb in Fig. 1 dargestellt.An outboard or sterndrive is shown in FIG. 1 as a simple example with a motor.

Ein Propeller ist an der Antriebswelle (1) des Motors, der andere an dem Gehäuse (2) desselben angeschlossen. One propeller is connected to the drive shaft ( 1 ) of the motor, the other to the housing ( 2 ) of the same.

Zum Fundament muß hier der Propellerschaft (3) gezählt werden, da er die Kräfte auf das Schiff überträgt. Er muß in diesem Fall im wesentlichen nur die Kräfte des Schub in Axialrichtung aufnehmen. Querbelastung durch die Aufnahme von Gegenmomenten fällt im wesentlichen weg. Dadurch kann die Dimensionierung des Schaftquerschnittes günstiger gestaltet werden.The propeller shaft ( 3 ) must be counted to the foundation, since it transfers the forces to the ship. In this case, it essentially only has to absorb the forces of the thrust in the axial direction. Cross loading due to the absorption of counter moments is essentially eliminated. As a result, the dimensioning of the shaft cross section can be made more economical.

Nimmt man ein annähernd gleiches Drehzahlverhalten der Propeller an so erreicht man eine Reduzierung der Motordrehzahl zum Propeller um die Hälfte, ohne ein Getriebe einsetzen zu müssen. Wobei auch sämtliche Lagerungen, außer der Motorenlager (4), nur mit halber Motordrehzahl ausgelegt werden müssen.If one assumes almost the same speed behavior of the propellers, the engine speed to the propeller is reduced by half without having to use a gearbox. All bearings, with the exception of the engine mount ( 4 ), only have to be designed at half the engine speed.

Die Vorteile liegen also klar auf der Hand. Die Erfindung reduziert nicht nur die Getriebeverluste durch die Einsparung einer oder mehrerer Getriebestufen, sondern durch die direkte Reduzierung der Drehzahlen, auch die Lagerreibung der Antriebswellen. Des weiteren werden durch die drehmomentenfreie Lagerung die Fundamentausmaße, sowie eine Einleitung von Vibrationen in dieselben, reduziert.So the advantages are obvious. The invention not only reduces transmission losses through the saving of one or more gear stages, but by the direct reduction in speed, also the bearing friction Drive shafts. Furthermore, the torque-free Storage of the foundation dimensions, as well as an introduction of vibrations into the same, reduced.

Durch alle diese Vorteile sind Bau und Betrieb einer solchen Anlage wirtschaftlicher zu gestalten als bei bisherigen Anlagen.Because of all these advantages, construction and operation are such Make the system more economical than with previous systems.

Claims (6)

1. Antrieb von contrarotierenden Doppelpropellern, insbesondere Schiffsantriebsanlagen, dadurch gekennzeichnet, daß die Antriebs­ maschine drehmomentenfrei gelagert ist.1. Drive of contrarotating double propellers, in particular ship propulsion systems, characterized in that the drive machine is mounted torque-free. 2. Antrieb nach Anspruch 1, dadurch gekennzeichnet, daß von der Antriebsmaschine zwei entgegengesetzte Drehmomente abgetrieben werden.2. Drive according to claim 1, characterized in that of the Drive machine driven two opposite torques become. 3. Antrieb nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die zwei, von der Antriebsmaschine, abgetriebenen Drehzahlen verschieden sein können.3. Drive according to claim 1 and 2, characterized in that the two speeds driven by the drive machine are different could be. 4. Antrieb nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß sich eine oder mehrere Getriebestufen zur weiteren Drehzahlveränderung anschließen lassen.4. Drive according to claim 1 to 3, characterized in that there is a or several gear stages for further speed changes get connected. 5. Antrieb nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß sich mehrere Antriebe direkt oder über Getriebestufen koppeln lassen.5. Drive according to claim 1 to 4, characterized in that itself Have several drives coupled directly or via gear stages. 6. Antrieb nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß sich Drehzahlverminderung sowie Drehzahlerhöhung realisieren lassen.6. Drive according to claim 1 to 5, characterized in that itself Reduce speed and increase speed.
DE19924234584 1992-10-14 1992-10-14 Drive for counter-rotating propellers, esp. for ship - applies opposite torque to propellers and can be controlled to change propeller speeds Withdrawn DE4234584A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924234584 DE4234584A1 (en) 1992-10-14 1992-10-14 Drive for counter-rotating propellers, esp. for ship - applies opposite torque to propellers and can be controlled to change propeller speeds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924234584 DE4234584A1 (en) 1992-10-14 1992-10-14 Drive for counter-rotating propellers, esp. for ship - applies opposite torque to propellers and can be controlled to change propeller speeds

Publications (1)

Publication Number Publication Date
DE4234584A1 true DE4234584A1 (en) 1994-04-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19924234584 Withdrawn DE4234584A1 (en) 1992-10-14 1992-10-14 Drive for counter-rotating propellers, esp. for ship - applies opposite torque to propellers and can be controlled to change propeller speeds

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0786402A2 (en) 1996-01-23 1997-07-30 Holger Kranert Propeller unit in a gondola
DE102004008805A1 (en) * 2004-02-20 2005-09-22 Siemens Ag Twin propeller drive for large, ocean-going ships comprises a front and a rear propeller arranged behind each other independently of each other on the same axis and with the same direction of rotation without any flow-guiding elements
DE102006049817B4 (en) * 2006-10-17 2011-11-10 Alexander Rubinraut Electric motor propeller drive

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB155550A (en) * 1919-12-18 1922-06-19 Marcel Lucien Edouard Fabre Method of and apparatus for driving two co-axial shafts in opposite directions
DE3208521C2 (en) * 1981-10-17 1988-10-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB155550A (en) * 1919-12-18 1922-06-19 Marcel Lucien Edouard Fabre Method of and apparatus for driving two co-axial shafts in opposite directions
DE3208521C2 (en) * 1981-10-17 1988-10-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JUNG,Ingvar: Gearing for contra-rotating pro- pellers. In: Shipbuilding and shipping Record, Dec.7,1967, S.801-804 *
N.N.: Growing interest in C.R. propellers. In: Marine Propulsion, H.2/89,S.12-13 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0786402A2 (en) 1996-01-23 1997-07-30 Holger Kranert Propeller unit in a gondola
DE102004008805A1 (en) * 2004-02-20 2005-09-22 Siemens Ag Twin propeller drive for large, ocean-going ships comprises a front and a rear propeller arranged behind each other independently of each other on the same axis and with the same direction of rotation without any flow-guiding elements
DE102004008805B4 (en) * 2004-02-20 2008-08-14 Siemens Ag Two propeller drive for ships
DE102006049817B4 (en) * 2006-10-17 2011-11-10 Alexander Rubinraut Electric motor propeller drive

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8122 Nonbinding interest in granting licenses declared
8139 Disposal/non-payment of the annual fee
8170 Reinstatement of the former position
8139 Disposal/non-payment of the annual fee