WO2012069164A2 - Marine vessel propulsion system with a nozzle and a propeller - Google Patents

Marine vessel propulsion system with a nozzle and a propeller Download PDF

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Publication number
WO2012069164A2
WO2012069164A2 PCT/EP2011/005823 EP2011005823W WO2012069164A2 WO 2012069164 A2 WO2012069164 A2 WO 2012069164A2 EP 2011005823 W EP2011005823 W EP 2011005823W WO 2012069164 A2 WO2012069164 A2 WO 2012069164A2
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WO
WIPO (PCT)
Prior art keywords
nozzle body
contour
constriction
propulsion system
following
Prior art date
Application number
PCT/EP2011/005823
Other languages
German (de)
French (fr)
Other versions
WO2012069164A3 (en
Inventor
Dirk JÜRGENS
Michael Palm
David Bendl
Original Assignee
Voith Patent Gmbh
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 Voith Patent Gmbh filed Critical Voith Patent Gmbh
Priority to KR1020137016102A priority Critical patent/KR20140004106A/en
Priority to US13/885,380 priority patent/US20130315704A1/en
Priority to EP11791437.4A priority patent/EP2643212A2/en
Priority to SG2013040175A priority patent/SG190400A1/en
Publication of WO2012069164A2 publication Critical patent/WO2012069164A2/en
Publication of WO2012069164A3 publication Critical patent/WO2012069164A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/16—Propellers having a shrouding ring attached to blades
    • 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

Definitions

  • the invention relates to a marine propulsion system according to the preamble of claim 1.
  • Such marine propulsion systems are well known. See DE 28 48 785 C2.
  • Drives can be arranged in the stern area of a ship. They can be fixed or pivotable.
  • the inner surface of the nozzle forms a flow channel whose longitudinal axis is coaxial with the propeller.
  • Channel width generally changes over the nozzle length.
  • the channel may have a converging and a diverging section. Cylindrical sections are also to be found.
  • the nozzle body has a certain thickness. The outer surface may be lapped by the water.
  • Nozzle thrust to the propeller thrust This ratio is in practice 1, for example at 0.7 - 0.8.
  • the invention has for its object to provide a marine propulsion of the type described above, in which the ratio of nozzle thrust to propeller thrust is as large as possible.
  • the propeller is located downstream of the bottleneck of the
  • Flow channel, or the bottleneck of the flow channel is located at a certain point of the length of the nozzle body.
  • the advantage obtainable by the invention is downright spectacular.
  • the invention has led to such a ratio of nozzle thrust to propeller thrust that the inventors initially stopped the experiments because they believed that the measuring instruments were defective.
  • the ratio of nozzle thrust to propeller thrust gave a value that was well above 1, namely at about 1.5.
  • Figure 1 shows an axial section of a ship propulsion with a
  • Nozzle body and a propeller Nozzle body and a propeller.
  • Figure 2 shows in a highly schematized view again in axial section a second drive.
  • FIG. 3 again shows a highly schematized view of another
  • FIGS. 4 to 7 show further nozzle bodies in axial sections.
  • FIG. 8 shows in a highly schematized view in axial section a third ship propulsion with two different axial ones
  • the ship propulsion system shown in FIG. 1 comprises a nozzle body 1 and a propeller 2 enclosed by the latter.
  • the propeller 2 comprises a
  • the nozzle body 1 has an inner surface 1.1 and an outer surface 1.2.
  • the inner surface 1.1 forms a flow channel, which is flowed through in the direction of the arrow.
  • the channel has a bottleneck 3.
  • the vertex of each propeller blade 2.2 in the radially outer region is located downstream of the constriction 3 - exactly recognizable from Figure 2, see also Figure 8. In this axial section seen an airfoil profile.
  • Nozzle body 1 In the embodiment according to FIG. 2, propeller 2 is displaced clearly in the downstream direction with respect to the bottleneck, specifically in the flow direction.
  • the inner surface 1.1 of the nozzle body 1 forming the flow channel has a first contour I which forms the inlet section of the flow channel. Contour I is located between the entry level 4 and the constriction 3. The contour I obeys a certain square function with a deviation of ⁇ 5 percent of the length 1.2 of the nozzle body 1. The inner surface 1.1 has a second contour II. Contour II is located between the bottleneck 3 and the
  • the contour II obeys a certain rational function, again with a deviation of ⁇ 5 percent of the length 1.2 of the nozzle body 1.
  • the constriction 3 is located where the contours I and II meet.
  • the contour III of the outer surface 1.2 of the nozzle body 1 belongs to a polynomial of the sixth order, again with the mentioned possible deviation of ⁇ 5 percent of the length 1.3 of the nozzle body 1.
  • the propeller 2 is located at the constriction 3 of the flow channel. Everything else is equal to the embodiment according to FIG. 2.
  • Figures 4 to 7 show further embodiments of nozzle bodies 1, all with airfoil.
  • axial propeller positions are shown.
  • the propeller is located downstream of the throat 3, and in the dashed representation, it is located at the throat 3.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Nozzles (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The invention relates to a marine vessel propulsion system with a nozzle body and a propeller surrounded by the latter; the nozzle body has an inner surface which forms a flow duct, and also an outer surface; there is a constriction between the inlet plane and the outlet plane of the flow duct; as seen in axial section, the inner delimiting surface of the flow duct has a first contour between the inlet plane and the constriction and a second contour between the constriction and the outlet plane; the constriction is located at a distance of 0.25 to 0.55 of the length of the nozzle body, measured from the inlet plane, preferably of 0.3 to 0.4.

Description

Schiffsantrieb mit einer Düse und einem Propeller  Ship propulsion with a nozzle and a propeller
Die Erfindung betrifft einen Schiffsantrieb gemäß dem Oberbegriff von Anspruch 1. Derartige Schiffsantriebe sind altbekannt. Siehe DE 28 48 785 C2. Solche The invention relates to a marine propulsion system according to the preamble of claim 1. Such marine propulsion systems are well known. See DE 28 48 785 C2. Such
Antriebe können im Heckbereich eines Schiffes angeordnet sein. Sie können feststehen, oder schwenkbar sein. Die Innenfläche der Düse bildet dabei einen Strömungskanal, dessen Längsachse koaxial zum Propeller verläuft. Die Drives can be arranged in the stern area of a ship. They can be fixed or pivotable. The inner surface of the nozzle forms a flow channel whose longitudinal axis is coaxial with the propeller. The
Kanalweite ändert sich im Allgemeinen über die Düsenlänge. Der Kanal kann einen konvergierenden und einen divergierenden Abschnitt aufweisen. Auch zylindrische Abschnitte sind anzutreffen. Der Düsenkörper hat eine gewisse Dicke. Die Außenfläche kann vom Wasser umspült sein. Channel width generally changes over the nozzle length. The channel may have a converging and a diverging section. Cylindrical sections are also to be found. The nozzle body has a certain thickness. The outer surface may be lapped by the water.
Eine wichtige Kennzahl ist das Verhältnis des erzeugten Schubes des Antriebs zur aufgenommenen Leistung. Ganz wichtig ist auch das Verhältnis des An important measure is the ratio of the generated thrust of the drive to the absorbed power. Very important is the relationship of the
Düsenschubes zum Propellerschub. Dieses Verhältnis liegt in der Praxis bei 1 , beispielsweise bei 0,7 - 0,8.  Nozzle thrust to the propeller thrust. This ratio is in practice 1, for example at 0.7 - 0.8.
Beide Zahlen sind wichtige Kenngrößen des spezifischen Energiebedarfes. Man ist bestrebt, diese Werte zu verbessern. Both numbers are important parameters of the specific energy requirement. One strives to improve these values.
Der Erfindung liegt die Aufgabe zugrunde, einen Schiffsantrieb der eingangs beschriebenen Bauart anzugeben, bei dem das Verhältnis von Düsenschub zu Propellerschub möglichst groß ist. The invention has for its object to provide a marine propulsion of the type described above, in which the ratio of nozzle thrust to propeller thrust is as large as possible.
Diese Aufgabe wird durch die Merkmale der unabhängigen Ansprüche gelöst. This object is solved by the features of the independent claims.
Die Erfinder haben demgemäß herausgefunden, dass wenigstens eine der drei folgenden Bedingungen zu erfüllen sind, um die Aufgabe zu lösen: The inventors have accordingly found that at least one of the following three conditions must be met in order to achieve the object:
Der Propeller befindet sich stromabwärts der Engstelle des The propeller is located downstream of the bottleneck of the
Strömungskanales, oder die Engstelle des Strömungskanals liegt an einer bestimmten Stelle der Länge des Düsenkörpers. Flow channel, or the bottleneck of the flow channel is located at a certain point of the length of the nozzle body.
Der durch die Erfindung erzielbare Vorteil ist geradezu spektakulär. Bei den Versuchen hat die Erfindung zu einem solchen Verhältnis von Düsenschub zu Propellerschub geführt, dass die Erfinder die Versuche zunächst abgebrochen haben, weil sie glaubten, die Messgeräte seien schadhaft. Das Verhältnis von Düsenschub zu Propellerschub ergab einen Wert, der weit über 1 lag, nämlich bei ca. 1 ,5. The advantage obtainable by the invention is downright spectacular. In the experiments, the invention has led to such a ratio of nozzle thrust to propeller thrust that the inventors initially stopped the experiments because they believed that the measuring instruments were defective. The ratio of nozzle thrust to propeller thrust gave a value that was well above 1, namely at about 1.5.
Die Erfindung ist anhand der Zeichnung näher erläutert. Darin ist im Einzelnen folgendes dargestellt: The invention is explained in more detail with reference to the drawing. The following is shown in detail:
Figur 1 zeigt in einem Axialschnitt einen Schiffsantrieb mit einem Figure 1 shows an axial section of a ship propulsion with a
Düsenkörper und einem Propeller.  Nozzle body and a propeller.
Figur 2 zeigt in einer stark schematisierten Ansicht wiederum im Axialschnitt einen zweiten Antrieb. Figure 2 shows in a highly schematized view again in axial section a second drive.
Figur 3 zeigt wiederum in stark schematisierter Ansicht einen weiteren FIG. 3 again shows a highly schematized view of another
Antrieb.  Drive.
Fig. 4 - 7 zeigen in Axialschnitten weitere Düsenkörper. FIGS. 4 to 7 show further nozzle bodies in axial sections.
Figur 8 zeigt in einer stark schematisierten Ansicht im Axialschnitt einen dritten Schiffsantrieb mit zwei verschiedenen axialen FIG. 8 shows in a highly schematized view in axial section a third ship propulsion with two different axial ones
Propellerpositionen.  Propeller positions.
Der in Figur 1 gezeigte Schiffsantrieb umfasst einen Düsenkörper 1 sowie einen von diesem umschlossenen Propeller 2. Der Propeller 2 umfasst eine  The ship propulsion system shown in FIG. 1 comprises a nozzle body 1 and a propeller 2 enclosed by the latter. The propeller 2 comprises a
Propellerwelle 2.1 sowie vier Propellerblätter 2.2. Der Düsenkörper 1 weist eine Innenfläche 1.1 und eine Außenfläche 1.2 auf. Die Innenfläche 1.1 bildet einen Strömungskanal, der in Richtung des Pfeiles durchströmt ist. Der Kanal weist eine Engstelle 3 auf. Der Scheitelpunkt eines jeden Propellerblattes 2.2 im radial äußeren Bereich befindet sich stromabwärts der Engstelle 3 - genau erkennbar aus Figur 2, siehe auch Figur 8. In diesem Axialschnitt gesehen zeigt sich ein Tragflügelprofil. Propeller shaft 2.1 and four propeller blades 2.2. The nozzle body 1 has an inner surface 1.1 and an outer surface 1.2. The inner surface 1.1 forms a flow channel, which is flowed through in the direction of the arrow. The channel has a bottleneck 3. The vertex of each propeller blade 2.2 in the radially outer region is located downstream of the constriction 3 - exactly recognizable from Figure 2, see also Figure 8. In this axial section seen an airfoil profile.
Aus den Figuren 2 und 3 erkennt man wiederum das Tragflügelprofil des From FIGS. 2 and 3, in turn, one recognizes the airfoil profile of the
Düsenkörpers 1. Bei der Ausführungsform gemäß Figur 2 ist Propeller 2 in stromabwärtiger Richtung deutlich gegenüber der Engstelle verschoben, und zwar in Strömungsrichtung. Nozzle body 1. In the embodiment according to FIG. 2, propeller 2 is displaced clearly in the downstream direction with respect to the bottleneck, specifically in the flow direction.
Die den Strömungskanal bildende Innenfläche 1.1 des Düsenkörpers 1 weist eine erste Kontur I auf, die den Einlaufabschnitt des Strömungskanales bildet. Kontur I befindet sich zwischen der Eintrittsebene 4 und der Engstelle 3. Die Kontur I gehorcht einer bestimmten quadratischen Funktion mit einer Abweichung von ± 5 Prozent der Länge 1.2 des Düsenkörpers 1. Die Innenfläche 1.1 weist eine zweite Kontur II auf. Kontur II befindet sich zwischen der Engstelle 3 und der The inner surface 1.1 of the nozzle body 1 forming the flow channel has a first contour I which forms the inlet section of the flow channel. Contour I is located between the entry level 4 and the constriction 3. The contour I obeys a certain square function with a deviation of ± 5 percent of the length 1.2 of the nozzle body 1. The inner surface 1.1 has a second contour II. Contour II is located between the bottleneck 3 and the
Austrittsebene 5. Die Kontur II gehorcht einer bestimmten rationalen Funktion, wiederum mit einer Abweichung von ± 5 Prozent der Länge 1.2 des Düsenkörpers 1. Die Engstelle 3 befindet sich dort, wo sich die Konturen I und II treffen. Exit plane 5. The contour II obeys a certain rational function, again with a deviation of ± 5 percent of the length 1.2 of the nozzle body 1. The constriction 3 is located where the contours I and II meet.
Die Kontur III der Außenfläche 1.2 des Düsenkörpers 1 gehört einem Polynom sechster Ordnung, wiederum mit der genannten möglichen Abweichung von ± 5 Prozent der Länge 1.3 des Düsenkörpers 1. The contour III of the outer surface 1.2 of the nozzle body 1 belongs to a polynomial of the sixth order, again with the mentioned possible deviation of ± 5 percent of the length 1.3 of the nozzle body 1.
Bei der Ausführungsform gemäß Figur 3 befindet sich der Propeller 2 an der Engstelle 3 des Strömungskanales. Alles andere ist gleich der Ausführungsform gemäß Figur 2. In the embodiment according to FIG. 3, the propeller 2 is located at the constriction 3 of the flow channel. Everything else is equal to the embodiment according to FIG. 2.
Die Figuren 4 bis 7 zeigen weitere Ausführungsformen von Düsenkörpem 1 , alle mit Tragflügelprofil. Bei der Ausführungsform gemäß Figur 8 sind axiale Propellerpositionen dargestellt. Bei der ausgezogenen Darstellung befindet sich der Propeller stromabwärts von der Engstelle 3, und bei der gestrichelten Darstellung befindet er sich an der Engstelle 3. Figures 4 to 7 show further embodiments of nozzle bodies 1, all with airfoil. In the embodiment according to FIG. 8, axial propeller positions are shown. In the solid representation, the propeller is located downstream of the throat 3, and in the dashed representation, it is located at the throat 3.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1 Düsenkörper 1 nozzle body
1.1 Innenfläche 1.1 inner surface
1.2 Außenfläche 1.2 outer surface
1.3 Länge des Düsenkörpers 1  1.3 Length of the nozzle body 1
2 Propeller  2 propellers
2.1 Propellerwelle  2.1 Propeller shaft
2.2 Propellerblatt  2.2 Propeller blade
3 Engstelle 3 bottleneck

Claims

Patentansprüche claims
1. Schiffsantrieb 1. Ship propulsion
1.1 mit einem Düsenkörper (1) und einem von diesem umschlossenen  1.1 with a nozzle body (1) and one enclosed by this
Propeller (2);  Propellers (2);
1.2 der Düsenkörper (1 ) weist eine Innenfläche (1.1 ) auf, die einen  1.2 of the nozzle body (1) has an inner surface (1.1), which has a
Strömungskanal bildet, ferner eine Außenfläche (1.2);  Flow channel forms, further an outer surface (1.2);
1.3 zwischen der Einrittsebene und der Austrittsebene des Strömungskanals befindet sich eine Engstelle (3);  1.3 between the entrance level and the exit plane of the flow channel is a constriction (3);
1.4 in einem Axialschnitt gesehen weist die innere Begrenzungsfläche des Strömungskanals zwischen der Eintrittsebene und der Engstelle (3) eine erste Kontur (I), und zwischen der Engstelle (3) und der Austrittsebene eine zweite Kontur (II) auf;  Seen in an axial section, the inner boundary surface of the flow channel between the inlet plane and the constriction (3) has a first contour (I), and between the constriction (3) and the exit plane on a second contour (II);
.5 die Engstelle (3) befindet sich in einem Abstand von 0,25 bis 0,55 der  .5 the constriction (3) is located at a distance of 0.25 to 0.55 the
Länge des Düsenkörpers (1), gemessen von der Eintrittsebene,  Length of the nozzle body (1), measured from the entrance level,
vorzugsweise von 0,3 bis 0,4.  preferably from 0.3 to 0.4.
2. Schiffsantrieb nach Anspruch 1 , dadurch gekennzeichnet, dass sich der Propeller (2) stromabwärts der Engstelle (2) befindet. 2. Ship propulsion system according to claim 1, characterized in that the propeller (2) is located downstream of the constriction (2).
3. Schiffsantrieb nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die erste Konturen wenigstens annähernd eine Hyperbel ist. 3. Marine propulsion system according to claim 1 or 2, characterized in that the first contours is at least approximately a hyperbola.
4. Schiffsantrieb nach einem der Ansprüche 1 bis 3, gekennzeichnet durch die folgenden Merkmale: 4. Marine propulsion system according to one of claims 1 to 3, characterized by the following features:
4.1 die zweite Kontur (II) ist wenigstens annähernd gradlinig;  4.1 the second contour (II) is at least approximately straight;
4.2 der Strömungskanal erweitert sich zwischen der Engstelle (3) und der  4.2 the flow channel widens between the bottleneck (3) and the
Austrittsebene;  Exit plane;
4.3 der Öffnungswinkel zwischen der zweiten Kontur (II) und der Längsachse des Strömungskanals liegt zwischen 5 und 15°, vorzugsweise zwischen 8 und 11°. 4.3 the opening angle between the second contour (II) and the longitudinal axis of the flow channel is between 5 and 15 °, preferably between 8 and 11 °.
5. Schiffsantrieb nach einem der Ansprüche 1 bis 4, gekennzeichnet durch die folgenden Merkmale: 5. Marine propulsion system according to one of claims 1 to 4, characterized by the following features:
die Kontur (I) folgt der folgenden rationalen Funktion: y = (a + bx) / (1 + cx + dx2) mit den folgenden Koeffizienten a = 0,21480055 the contour (I) follows the following rational function: y = (a + bx) / (1 + cx + dx 2 ) with the following coefficients a = 0.21480055
b = -0,6380295  b = -0.6380295
c = 22.43205  c = 22.43205
d = -23.304763 und zwar für eine Länge von einem Meter des Düsenkörpers (1 ), wobei die Koeffizienten bei abweichenden Längen des Düsenkörpers (1 )  d = -23.304763 and for a length of one meter of the nozzle body (1), wherein the coefficients at different lengths of the nozzle body (1)
entsprechend zu skalieren sind.  to scale accordingly.
6. Schiffsantrieb nach einem der Ansprüche 1 bis 5, gekennzeichnet durch die folgenden Merkmale: 6. Marine propulsion system according to one of claims 1 to 5, characterized by the following features:
die zweite Kontur (II) folgt der folgenden quadratischen Funktion y = a + bx2 mit den folgenden Koeffizienten: a = -0.01965953 the second contour (II) follows the following quadratic function y = a + bx 2 with the following coefficients: a = -0.01965953
b = 0.01381632  b = 0.01381632
c = 0.09219007 und zwar für eine Länge von einem Meter des Düsenkörpers (1 ), wobei die Koeffizienten bei abweichenden Längen des Düsenkörpers (1 )  c = 0.09219007 for a length of one meter of the nozzle body (1), wherein the coefficients at different lengths of the nozzle body (1)
entsprechend zu skalieren sind. Schiffsantrieb nach einem der Ansprüche 1 bis 6, gekennzeichnet durch die folgenden Merkmale: to scale accordingly. Ship drive according to one of claims 1 to 6, characterized by the following features:
die Außenfläche (1 ,2) des Düsenkörpers (1 ) weist eine Kontur (II) als Polynom sechster Ordnung gemäß der folgenden Funktion auf: y = a + bx + cx2 +dx3 mit den folgenden Koeffizienten: a = 0,24418034 the outer surface (1, 2) of the nozzle body (1) has a contour (II) as a sixth-order polynomial according to the following function: y = a + bx + cx 2 + dx 3 with the following coefficients: a = 0.24448034
b = 0,919041095  b = 0.919041095
c = -8.7136152  c = -8.7136152
d = 29.591049  d = 29.591049
e = -51.371726  e = -51.371726
f = 43,581168  f = 43.581168
g = -14,141404 und zwar für eine Länge von einem Meter des Düsenkörpers (1 ), wobei die Koeffizienten bei abweichenden Längen des Düsenkörpers (1 )  g = -14.141404 and for a length of one meter of the nozzle body (1), wherein the coefficients at different lengths of the nozzle body (1)
entsprechend zu skalieren sind. to scale accordingly.
Schiffsantrieb nach einem der Ansprüche 4 bis 7, gekennzeichnet durch eine Abweichung von den genannten Zahlen um ± 10 Prozent, mindestens um ± 5 Prozent. Vessel propulsion system according to one of claims 4 to 7, characterized by a deviation of said numbers by ± 10 percent, at least ± 5 percent.
Schiff mit einem Schiffsantrieb, dadurch gekennzeichnet, dass der Ship with a marine propulsion, characterized in that the
Schiffsantrieb gemäß einem der Ansprüche 1 bis 8 gestaltet ist. Ship propulsion according to one of claims 1 to 8 is designed.
PCT/EP2011/005823 2010-11-23 2011-11-18 Marine vessel propulsion system with a nozzle and a propeller WO2012069164A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020137016102A KR20140004106A (en) 2010-11-23 2011-11-18 Marine vessel propulsion system with a nozzle and a propeller
US13/885,380 US20130315704A1 (en) 2010-11-23 2011-11-18 Marine Vessel Propulsion System with a Nozzle and a Propeller
EP11791437.4A EP2643212A2 (en) 2010-11-23 2011-11-18 Marine vessel propulsion system with a nozzle and a propeller
SG2013040175A SG190400A1 (en) 2010-11-23 2011-11-18 Marine vessel propulsion system with a nozzle and a propeller

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010052248A DE102010052248A1 (en) 2010-11-23 2010-11-23 Ship propulsion with a nozzle and a propeller
DE102010052248.1 2010-11-23

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WO2012069164A2 true WO2012069164A2 (en) 2012-05-31
WO2012069164A3 WO2012069164A3 (en) 2012-08-30

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US (1) US20130315704A1 (en)
EP (1) EP2643212A2 (en)
KR (1) KR20140004106A (en)
DE (1) DE102010052248A1 (en)
SG (1) SG190400A1 (en)
WO (1) WO2012069164A2 (en)

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DE2848785C2 (en) 1978-11-10 1984-07-05 Willi Becker Ingenieurbüro GmbH, 2000 Hamburg Rudder propeller with a Kort nozzle for ship propulsion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016506892A (en) * 2013-02-08 2016-03-07 三星重工業株式会社Ｓａｍｓｕｎｇｈｅａｖｙ Ｉｎｄ．Ｃｏ．，Ｌｔｄ． Ship propulsion device
EP2955099A4 (en) * 2013-02-08 2016-09-28 Samsung Heavy Ind Propulsion device for ship
US10040528B2 (en) 2013-02-08 2018-08-07 Samsung Heavy Ind. Co., Ltd. Propulsion device for ship

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US20130315704A1 (en) 2013-11-28
EP2643212A2 (en) 2013-10-02

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