EP2025593A2 - Rudder for ships - Google Patents
Rudder for ships Download PDFInfo
- Publication number
- EP2025593A2 EP2025593A2 EP08015619A EP08015619A EP2025593A2 EP 2025593 A2 EP2025593 A2 EP 2025593A2 EP 08015619 A EP08015619 A EP 08015619A EP 08015619 A EP08015619 A EP 08015619A EP 2025593 A2 EP2025593 A2 EP 2025593A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rudder
- rudder blade
- propeller
- blade
- cross
- 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.)
- Granted
Links
- 230000003628 erosive effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B63H25/06—Steering by rudders
- B63H25/38—Rudders
-
- 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
- B63H25/06—Steering by rudders
- B63H25/38—Rudders
- B63H2025/388—Rudders with varying angle of attack over the height of the rudder blade, e.g. twisted rudders
Definitions
- the invention relates to a rudder for ships according to the preamble of claim 1.
- Ship rudders such as full-floating rudder or balance rudder, with or without hinged fin, are known in various embodiments.
- a rudder blade with two superimposed rudder blade sections, the propeller facing front nose strips are offset from each other such that the one nose bar to port or starboard and the other nose bar are offset to starboard or port side, wherein the two side wall surfaces of the rudder blade converge in an end bar facing away from the propeller.
- the nose strips of the two rudder blade sections are offset from each other, so that the nose strip of the upper rudder blade section to port and the nose strip of the lower rudder blade section to starboard or the nose strip of the upper rudder blade section to starboard and the nose strip of the lower rudder blade section are offset to port, respectively obtained two mutually mirror-inverted cross-sectional profiles of the two rudder blade sections.
- the further inventive embodiment according to claim 2 provides for the arrangement of the ship's rudder in conjunction with his rudder stock in a rowing koker stock.
- the rudder blade has two superimposed sections, the propeller facing the leading edge strips are offset such that the one nose bar to port and the other nose bar are moved to starboard, the two side wall surfaces of the rudder blade converge in a propeller facing away from the end bar , wherein the rudder trunk bearing is provided as a cantilever beam with a central inner longitudinal bore for receiving the rudder stock for the rudder blade and extending into the rudder end connected to the rudder blade, wherein for supporting the rudder stock a bearing in the inner longitudinal bore of the rudder trunk bearing is arranged, with its free end in a recess, collection o.
- the rudder blade extends, wherein the rudder stock is led out in its end with a portion of the rudder trunk bearing and connected to the end of this section with the rudder blade, with no storage between the rudder blade and the rudder trunk bearing is provided and wherein the connection of the rudder stock with the rudder blade above the propeller shaft center is located, wherein the bottom bracket for the storage of the rudder stock is arranged in the rudder trunk bearing in the end of the rudder trunk bearing.
- the upper rudder blade portion of the rudder blade has a cross-sectional profile extending from a front of the leading edge bar to the rear end bar and up to a maximum profile thickness conically widening front surface and a to the front Surface subsequent and to the rear end bar conically tapered rear surface is formed, wherein the two formed by a running in the longitudinal direction of the rudder blade center line Surface portions have different sizes, of which the larger surface portion is located on the port side and the smaller surface portion starboard side lying, wherein the two formed by the center line in the rear region of the cross-sectional profile surface section are the same, and that the lower rudder blade portion of the rudder blade has a cross-sectional profile, the from a front surface extending from the leading edge of the nose strip to the rearward end strip and flared to a maximum profile thickness, and adjoining the front surface and forming the rear surface, the two extending from a centerline extending longitudinally of the rudder blade formed front surface portions have different sizes
- the two propeller-side surface portions of the cross-sectional profile of the upper rudder blade portion have edge regions with a flat arc and a curved arc, the two facing away from the propeller surface portions of the cross-sectional profile of the upper rudder blade portion tangentially extending edge region, wherein the surface portion is located on the starboard side with the edge region with a curved arc ,
- the two propeller-side surface portions of the cross-sectional profile of the lower rudder blade portion have edge region with a flat arc shape and a curved arc curve, wherein the two facing away from the propeller surface portions of the cross-sectional profile of the lower rudder blade portion have tangentially extending edge regions, wherein the surface portion is lying on the port side with the edge region with arched bow course.
- Fig. 1 110 is a hull, with 120 a rudder trunk bearing, with 100 a rudder blade and 140 a rudder shaft.
- the rudder blade 100 is associated with a propeller 220.
- the rudder blade 100 according to Fig. 2A . 2 B and 3 has two superimposed rudder sections 10, 20, the propeller 220 facing front nose strips 11, 31 are offset such that the one nose strip 11 are offset to port BB and the other nose strip 21 to starboard SB.
- the two side wall surfaces 100a, 100b of the rudder blade 100 merge into an end bar 30 facing away from the propeller 220.
- the upper and lower rudder blade sections 10, 20 of the rudder blade 100 are formed as follows:
- the upper rudder blade section 10 has according to Fig. 4 a cross-sectional profile 12 which is formed by a front surface 14 conically widening from the front nose strip 11 to the end strip 30 to a maximum profile thickness 13. At this front surface 14, a rear surface 15 extending to the end bar 30 connects, which tapers to the end bar 30.
- the front surface 14 is subdivided by a center line M1 extending in the longitudinal direction of the rudder blade 100 into two surface sections 14a, 14b which have different sizes.
- the larger surface portion 14a is located on the port side and the smaller surface portion 14b facing the starboard side.
- the rear surface 15 is also divided from the center line M1 into two surface portions 15a, 15b.
- the two surface portions 15a, 15b are the same size and have the same shapes.
- the two propeller-side surface sections 14a, 14b of the cross-sectional profile 12 of the upper rudder blade section 10 have edge regions 16, 16a with a flat curved path 16'a, the two propeller 220 facing away from the surfaces 15a, 15b of the cross-sectional profile 12 of the upper rudder blade section 10 tangentially extending edge regions 17th 17a.
- the surface portion 14b with the edge region 16a with a strongly arched curve 16'a is located on the starboard side.
- the lower rudder blade section 20 has according to Fig. 5 a mirrored cross-sectional profile 22.
- This cross-sectional profile 20 extends from a conically widening from the leading edge 21 to the end bar 30 and to a maximum profile thickness 23 surface.
- At this front surface 24 is followed by an end strip 30 extending to surface 25, which tapers to the end bar 30.
- the front surface 24 is subdivided by a center line M2 running in the longitudinal direction of the rudder blade 100 into two surface sections 24a, 24b which have different sizes.
- the larger surface portion 24b is located starboard side and the small surface portion 24a is facing the port side.
- the rear surface 25 is also divided from the center line M2 into two surface portions 25a, 25b.
- the two surface portions 25a, 25b are the same size and have the same shape.
- the two propeller-side surface portions 24a, 24b of the cross-sectional profile 22 of the upper rudder blade portion 20 have edge regions 26, 26a with a flat arc 26 'and a curved arc 26'a, the two facing away from the propeller 220 surfaces 25a, 25b of the cross-sectional profile 22 of the lower Ruderblattabiteses 20 tangentially extending edge regions 27, 27a have.
- the surface portion 24b with the edge region 26'a with a strongly arched curve 26'a is located on the port side.
- the design and arrangement of the two rudder blade sections 10, 20 provides that the propeller 220 associated nose strip 11 of the upper rudder blade section 10 port side to the center line M1 and the nose strip 21 of the lower rudder blade section 20 starboard side lying to the center line M2, wherein the two rudder blade sections 10, 20th in the rear region of the rudder blade 100 are brought together in an end strip 30.
- Fig. 2A . 2 B . 3, 4 and 5 are the two rudder blade sections 10, 20 of the rudder blade 100 with their cross-sectional profiles 12, 22 arranged to each other such that the side wall portions of the rudder blade, which are in the region of the highly curved curved curves 16'a and 26'a of the surface portions 14b and 24b starboard side and port side, then the surface portion 14b of the cross-sectional profile 12 of the starboard side and the surface portion 24b of the cross-sectional profile 22 of the port side are facing, so that the nose strips 11, 21 of the two rudder blade sections 10, 20 are port side and starboard side.
- the invention also includes an embodiment of the rudder, according to which the two rudder blade sections 10, 20 of the rudder blade 100 are arranged with their cross-sectional profiles 12, 22 to each other such that the side wall portions of the rudder blade, in the region of the highly curved arc curves 16'a and 26'a of the surface portions 14b and 24b are port side and starboard side, then the surface portion 14b of the port side cross-sectional profile 12 and the surface portion 24b of the starboard side cross-sectional profile 22 are facing, so that the nose strips 11, 21 of the two rudder blade sections 10, 20 starboard side and on the port side.
- 110 is a hull, with 120 a rudder trunk bearing, with 100 a rudder blade and 140 a rudder shaft.
- a fin 135 is hinged.
- the rudder blade 100 has a preferably cylindrical recess 155 for receiving the free end 120 b of the rudder trunk bearing 120.
- the rudder trunk bearing 120 is provided as a cantilever with a central inner longitudinal bore 125 for receiving the rudder stock 140 for the rudder blade 100.
- the rudder trunk bearing 120 is sufficiently formed to the rudder blade 100 connected to the rudder end.
- the rudder trunk bearing 120 In its inner bore 125, the rudder trunk bearing 120 has a bearing 150 for supporting the rudder stock 140, wherein preferably this bearing 150 is arranged in the lower end region 120b of the rudder trunk bearing 120.
- the rudder stock 140 is led out with its end 140b with a section 145 from the rudder trunk bearing 120.
- this extended portion 145 of the rudder stock 140 is fixedly connected to the rudder blade 100 at 170, but here too a connection is provided which allows a release of the rudder blade 100 of the rudder stock 140 when the propeller shaft is to be replaced.
- the connection of the rudder stock 140 in the area 170 with the rudder blade 100 is above the propeller shaft center 200, so that only the rudder blade 100 must be removed from the rudder stock 140 for the expansion of the propeller shaft, while pulling out the rudder stock 140 from the rudder trunk 120 not is necessary, since both the free lower end 120b of the rudder trunk bearing 120 and the free lower end of the rudder stock 140 are above the propeller shaft center.
- both the free lower end 120b of the rudder trunk bearing 120 and the free lower end of the rudder stock 140 are above the propeller shaft center.
- a single inner bearing 150 is provided for the storage of the rudder stock 140 in the rudder trunk bearing 120; a further bearing for the rudder blade 100 on the outer wall of the rudder trunk bearing 120 is omitted.
- the rudder blade 100 is provided with a recess indicated at 160 or recess.
- the rudder trunk bearing 120 is provided as a cantilever with a central inner longitudinal bore 125 for receiving the rudder stock 140 for the rudder blade 100. Furthermore, the rudder trunk bearing 120 is formed reaching into the rudder blade 100 connected in the rudder end and has in its inner bore 125 a bearing 150 for supporting the rudder stock 140 in the rudder trunk bearing 120. With its free end 120 b, the rudder trunk bearing 120 extends into a recess 160 in the rudder blade 100, the rudder stock 140 being led out of the rudder trunk bearing 120 in its end region 140 b with a section 145.
- this extended portion 145 of the rudder stock 140 is connected to the rudder blade 100, wherein the connection of the rudder stock 140 with the rudder blade 100 above the propeller shaft center 200 is lying.
- the inner bearing 150 is preferably provided in the end region 120b of the rudder trunk bearing 120.
- the invention is not limited to the embodiments described above and illustrated in the drawing. Deviations in the arrangement of the bearing in the area of the rudder trunk bearing 120 and the rudder stock 140 are also within the scope of the invention as another embodiment of the cylindrical recess 160 in the rudder blade 11.
- the inventively constructed rudder arrangement o. In ships as well as in floating platforms o. applicable.
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Abstract
Description
Die Erfindung betrifft ein Ruder für Schiffe gemäß dem Oberbegriff des Anspruches 1.The invention relates to a rudder for ships according to the preamble of claim 1.
Schiffsruder, wie Vollschwebe-Ruder oder Balance-Profilruder, mit oder ohne angelenkter Flosse, sind in den verschiedensten Ausführungsformen bekannt.Ship rudders, such as full-floating rudder or balance rudder, with or without hinged fin, are known in various embodiments.
Es ist Aufgabe der Erfindung, ein Schiffsruder zu schaffen, bei dem Erosionserscheinungen am Ruder durch Kavitationsbildung, insbesondere beim Einsatz bei schnellen Schiffen mit hochbelasteten Propellern, vermieden werden und mit dem der Treibstoffverbrauch gesenkt wird.It is an object of the invention to provide a ship's rudder, in which erosion at the rudder by cavitation, especially when used in fast ships with highly loaded propellers, are avoided and with the fuel consumption is reduced.
Gelöst wird diese Aufgabe bei einem Ruder gemäß der eingangs beschriebenen Art mit den in den Ansprüchen 1 und 2 angegebenen Merkmalen.This object is achieved with a rudder according to the type described above with the features specified in claims 1 and 2.
Hiernach weist das erfindungsgemäße Ruder nach Anspruch 2 ein Ruderblatt mit zwei übereinanderliegenden Ruderblattabschnitten auf, deren dem Propeller zugekehrten vorderen Nasenleisten derart zueinander versetzt sind, dass die eine Nasenleiste nach Backbord oder Steuerbord und die andere Nasenleiste nach Steuerbord oder Backbord versetzt sind, wobei die beiden Seitenwandflächen des Ruderblattes in eine dem Propeller abgewandte Endleiste zusammenlaufen.Thereafter, the rudder according to the invention according to claim 2, a rudder blade with two superimposed rudder blade sections, the propeller facing front nose strips are offset from each other such that the one nose bar to port or starboard and the other nose bar are offset to starboard or port side, wherein the two side wall surfaces of the rudder blade converge in an end bar facing away from the propeller.
Der Vorteil eines derart erfindungsgemäß ausgebildeten Ruders mit zwei spiegelverkehrten Querschnittsprofilen besteht zum einen in der Verhinderung der Dampfblasenbildung und zum anderen in der Verhinderung von Erosionserscheinungen am Ruder, die durch Kavitationsbildung bei schnellen Schiffen mit hochbelasteten Propellern auftritt. Die spezielle Ausgestaltung des Ruderblattes trägt zu einer Senkung des Treibstoffverbrauchs bei. Neben einem erheblichen Kavitationsschutz ist auch eine Verbesserung des Wirkungsgrades gegeben. Eine gravierende Gewichtseinsparung wird erreicht.The advantage of such inventively designed rudder with two mirror-inverted cross-sectional profiles on the one hand in the prevention of vapor bubble formation and on the other in the prevention of erosion at the rudder, which occurs by cavitation in fast ships with highly loaded propellers. The special design of the rudder blade contributes to a reduction in fuel consumption. In addition to a significant cavitation protection and an improvement in the efficiency is given. A serious weight saving is achieved.
Dadurch, dass die Nasenleisten der beiden Ruderblattabschnitte zueinander versetzt sind, so dass die Nasenleiste des oberen Ruderblattabschnittes nach Backbord und die Nasenleiste des unteren Ruderblattabschnittes nach Steuerbord oder die Nasenleiste des oberen Ruderblattabschnittes nach Steuerbord und die Nasenleiste des unteren Ruderblattabschnittes nach Backbord versetzt sind, werden jeweils zwei zueinander spiegelverkehrte Querschnittsprofile der beiden Ruderblattabschnitte erhalten.Characterized in that the nose strips of the two rudder blade sections are offset from each other, so that the nose strip of the upper rudder blade section to port and the nose strip of the lower rudder blade section to starboard or the nose strip of the upper rudder blade section to starboard and the nose strip of the lower rudder blade section are offset to port, respectively obtained two mutually mirror-inverted cross-sectional profiles of the two rudder blade sections.
Die weitere erfindungsgemäße Ausgestaltung nach Anspruch 2 sieht die Anordnung des Schiffsruders in Verbindung mit seinem Ruderschaft in einem Ruderkokerlager vor. Auch bei dieser Ausgestaltung weist das Ruderblatt zwei übereinanderliegende Abschnitte auf, deren dem Propeller zugekehrten vorderen Nasenleisten derart versetzt sind, dass die eine Nasenleiste nach Backbord und die andere Nasenleiste nach Steuerbord verstellt sind, wobei die beiden Seitenwandflächen des Ruderblattes in eine dem Propeller abgewandte Endleiste zusammenlaufen, wobei das Ruderkokerlager als Kragträger mit einer mittigen Innenlängsbohrung zur Aufnahme des Ruderschaftes für das Ruderblatt versehen ist und bis in das mit dem Ruderschaftende verbundene Ruderblatt hineinreichend ausgebildet ist, wobei zur Lagerung des Ruderschaftes ein Lager in der Innenlängsbohrung des Ruderkokerlagers angeordnet ist, das mit seinem freien Ende in eine Ausnehmung, Einziehung o. dgl. in dem Ruderblatt hineinreicht, wobei der Ruderschaft in seinem Endbereich mit einem Abschnitt aus dem Ruderkokerlager herausgeführt und mit dem Ende dieses Abschnittes mit dem Ruderblatt verbunden ist, wobei keine Lagerung zwischen dem Ruderblatt und dem Ruderkokerlager vorgesehen ist und wobei die Verbindung des Ruderschaftes mit dem Ruderblatt oberhalb der Propellerwellenmitte liegt, wobei das Innenlager für die Lagerung des Ruderschaftes in dem Ruderkokerlager im Endbereich des Ruderkokerlagers angeordnet ist.The further inventive embodiment according to claim 2 provides for the arrangement of the ship's rudder in conjunction with his rudder stock in a rowing koker stock. Also in this embodiment, the rudder blade has two superimposed sections, the propeller facing the leading edge strips are offset such that the one nose bar to port and the other nose bar are moved to starboard, the two side wall surfaces of the rudder blade converge in a propeller facing away from the end bar , wherein the rudder trunk bearing is provided as a cantilever beam with a central inner longitudinal bore for receiving the rudder stock for the rudder blade and extending into the rudder end connected to the rudder blade, wherein for supporting the rudder stock a bearing in the inner longitudinal bore of the rudder trunk bearing is arranged, with its free end in a recess, collection o. The like. In the rudder blade extends, wherein the rudder stock is led out in its end with a portion of the rudder trunk bearing and connected to the end of this section with the rudder blade, with no storage between the rudder blade and the rudder trunk bearing is provided and wherein the connection of the rudder stock with the rudder blade above the propeller shaft center is located, wherein the bottom bracket for the storage of the rudder stock is arranged in the rudder trunk bearing in the end of the rudder trunk bearing.
Der Vorteil, der sich bei einem derart erfindungsgemäß ausgebildeten Ruder ergibt, bei dem der Ruderschaft im Endbereich des Ruderkokerlagers mittels eines Lagers gelagert ist, wobei die Verbindung des Ruderschaftes mit dem Ruderblatt oberhalb der Propellerwellenmitte liegend ist, ohne dass es hiebei eines weiteren Lagers für das Ruderblatt an der Außenwandfläche des Ruderkokerlagers bedarf, besteht darin, dass für das Auswechseln der Propellerwelle der Ruderschaft nach der Abnahme des Ruderblattes aus dem Ruderkokerlager nicht mehr herausgezogen zu werden braucht, da die Verbindung des Ruderschaftes mit dem Ruderblatt oberhalb der Propellerwellenmitte liegt. Hinzukommt, dass das Ruderblatt des Ruders ein sehr schlankes Profil aufweisen kann.The advantage that results in such inventively designed rudder, in which the rudder stock is mounted in the end of the rudder trunk bearing by means of a bearing, the connection of the rudder stock is located with the rudder blade above the propeller shaft center, without hiebei another camp for the Rider blade on the outer wall surface of the rudder rod bearing requires, is that for the replacement of the propeller shaft of the rudder post after removal of the rudder blade from the rudder rod bearing no longer needs to be pulled out because the connection of the rudder stock with the rudder blade is above the propeller shaft center. In addition, the rudder blade of the rudder can have a very slim profile.
Weitere vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Further advantageous embodiments of the invention are the subject of the dependent claims.
So sieht eine vorteilhafte Ausgestaltung der Erfindung vor, dass der obere Ruderblattabschnitt des Ruderblattes ein Querschnittsprofil aufweist, das von einer sich von der vorderen Nasenleiste bis zur rückwärtigen Endleiste erstrecken und sich bis zu einer größten Profildicke konisch sich erweiternden vorderen Fläche sowie einer sich an die vordere Fläche anschließenden und sich zur rückwärtigen Endleiste konisch sich verjüngenden rückwärtigen Fläche gebildet wird, wobei die beiden von einer in Längsrichtung des Ruderblattes verlaufenden Mittellinie gebildeten vorderen Flächenabschnitte unterschiedliche Größen aufweisen, von denen der größere Flächenabschnitt backbordseitig liegend ist und der kleinere Flächenabschnitt steuerbordseitig liegend ist, wobei die beiden von der Mittellinie im rückwärtigen Bereich des Querschnittsprofils gebildeten Flächenabschnitt gleich ausgebildet sind, und dass der untere Ruderblattabschnitt des Ruderblattes ein Querschnittsprofil ausweist, das von einer sich von der vorderen Nasenleiste bis zur rückwärtigen Endleiste erstreckenden und sich zu einer größten Profildicke konisch sich erweiternden vorderen Fläche sowie einer sich an die vordere Fläche anschließenden und sich zur rückwärtigen Fläche gebildet wird, wobei die beiden von einer in Längsrichtung des Ruderblattes verlaufenden Mittellinie gebildeten vorderen Flächenabschnitte unterschiedliche Größen aufweisen, von denen der größere Flächenabschnitt steuerbordseitig liegend ist und der kleinere Flächenabschnitt backbordseitig liegend ist, wobei die beiden von der Mittellinie im rückwärtigen Bereich des Querschnittsprofils gebildeten Flächenabschnitte gleich ausgebildet sind, so dass die dem Propeller zugeordnete Nasenleiste des oberen Ruderblattabschnittes backbordseitig der Mittellinie und die Nasenleiste des unteren Ruderblattabschnittes steuerbordseitig der Mittellinie liegend ist.Thus, an advantageous embodiment of the invention, that the upper rudder blade portion of the rudder blade has a cross-sectional profile extending from a front of the leading edge bar to the rear end bar and up to a maximum profile thickness conically widening front surface and a to the front Surface subsequent and to the rear end bar conically tapered rear surface is formed, wherein the two formed by a running in the longitudinal direction of the rudder blade center line Surface portions have different sizes, of which the larger surface portion is located on the port side and the smaller surface portion starboard side lying, wherein the two formed by the center line in the rear region of the cross-sectional profile surface section are the same, and that the lower rudder blade portion of the rudder blade has a cross-sectional profile, the from a front surface extending from the leading edge of the nose strip to the rearward end strip and flared to a maximum profile thickness, and adjoining the front surface and forming the rear surface, the two extending from a centerline extending longitudinally of the rudder blade formed front surface portions have different sizes, of which the larger surface portion is starboard side lying and the smaller surface portion is lying on the port side t, wherein the two formed by the center line in the rear region of the cross-sectional profile surface sections are the same, so that the propeller associated with the nose bar of the upper rudder blade section port side of the center line and the nose strip of the lower rudder blade portion is located starboard side of the center line.
Die beiden propellerseitigen Flächenabschnitte des Querschnittsprofils des oberen Ruderblattabschnittes weisen Randbereiche mit einem flachen Bogenverlauf und einem gewölbten Bogenverlauf auf, wobei die beiden dem Propeller abgekehrten Flächenabschnitte des Querschnittsprofils des oberen Ruderblattabschnittes tangential verlaufende Randbereich aufweisen, wobei der Flächenabschnitt mit dem Randbereich mit gewölbtem Bogenverlauf steuerbordseitig liegend ist.The two propeller-side surface portions of the cross-sectional profile of the upper rudder blade portion have edge regions with a flat arc and a curved arc, the two facing away from the propeller surface portions of the cross-sectional profile of the upper rudder blade portion tangentially extending edge region, wherein the surface portion is located on the starboard side with the edge region with a curved arc ,
Die beiden propellerseitigen Flächenabschnitte des Querschnittsprofils des unteren Ruderblattabschnittes weisen Randbereich mit einem flachen Bogenverlauf und einem gewölbten Bogenverlauf auf, wobei die beiden dem Propeller abgekehrten Flächenabschnitte des Querschnittsprofils des unteren Ruderblattabschnittes tangential verlaufende Randbereiche aufweisen, wobei der Flächenabschnitt mit dem Randbereich mit gewölbtem Bogenverlauf backbordseitig liegend ist.The two propeller-side surface portions of the cross-sectional profile of the lower rudder blade portion have edge region with a flat arc shape and a curved arc curve, wherein the two facing away from the propeller surface portions of the cross-sectional profile of the lower rudder blade portion have tangentially extending edge regions, wherein the surface portion is lying on the port side with the edge region with arched bow course.
Ausführungsbeispiele der Erfindung werden nachstehend anhand der Zeichnungen näher erläutert. Es zeigen:
- Fig. 1
- eine Ruderanordnung aus einem Ruderblatt mit einem Ruderschaft und mit einem dem Ruderblatt zugeordneten Propeller,
- Fig. 2A
- eine schaubildliche Ansicht des Ruderblattes,
- Fig. 2B
- eine Vorderansicht des Ruderblattes gemäß
Fig. 2A , - Fig. 3
- das Ruderblatt gemäß
Fig. 2A mit eingezeichneten Querschnittsformen im oberen Ruderblattabschnitt und im unteren Ruderblattabschnitt, - Fig. 4
- eine Ansicht von oben auf das Querschnittsprofil des oberen Ruderblattabschnittes des Ruders,
- Fig. 5
- eine Ansicht von oben auf das Querschnittsprofil des unteren Ruderblattabschnittes des Ruders,
- Fig. 6
- die Ruderanordnung mit in dem Ruderkokerlager gelagerten Ruderschaft und dem oberhalb der Propellerwellenmitte liegenden Befestigungspunkt des Ruderschaftes mit dem Ruderblatt,
- Fig. 7
- einen senkrechten Schnitt gemäß Linie VII-VII in
Fig. 6 und - Fig. 8
- eine schematische Darstellung der Lageranordnung zwischen dem Ruderschaft und dem Ruderkoker.
- Fig. 1
- a rudder assembly comprising a rudder blade with a rudder stock and a propeller associated with the rudder blade;
- Fig. 2A
- a perspective view of the rudder blade,
- Fig. 2B
- a front view of the rudder blade according to
Fig. 2A . - Fig. 3
- the rudder blade according to
Fig. 2A with drawn cross-sectional shapes in the upper rudder blade section and in the lower rudder blade section, - Fig. 4
- a view from above of the cross-sectional profile of the upper rudder blade portion of the rudder,
- Fig. 5
- a view from above of the cross-sectional profile of the lower rudder blade portion of the rudder,
- Fig. 6
- the rudder assembly with rudder stock mounted in the rudder rod bearing and the attachment point of the rudder stock with the rudder blade, located above the propeller shaft center,
- Fig. 7
- a vertical section along line VII-VII in
Fig. 6 and - Fig. 8
- a schematic representation of the bearing assembly between the rudder stock and the rudder trunk.
Bei der in
Das Ruderblatt 100 gemäß
Der obere und der untere Ruderblattabschnitt 10, 20 des Ruderblattes 100 sind dabei wie folgt ausgebildet:The upper and lower
Der obere Ruderblattabschnitt 10 weist gemäß
Der größere Flächenabschnitt 14a liegt dabei backbordseitig und der kleinere Flächenabschnitt 14b ist der Steuerbordseite zugekehrt. Die rückwärtige Fläche 15 wird ebenfalls von der Mittellinie M1 in zwei Flächenabschnitte 15a, 15b unterteilt. Hier sind die beiden Flächenabschnitte 15a, 15b gleich groß und weisen gleiche Formen auf.The
Die beiden propellerseitigen Flächenabschnitte 14a, 14b des Querschnittsprofils 12 des oberen Ruderblattabschnittes 10 weisen Randbereiche 16, 16a mit einem flachen Bogenverlauf 16'a auf, wobei die beiden dem Propeller 220 abgekehrten Flächen 15a, 15b des Querschnittsprofils 12 des oberen Ruderblattabschnittes 10 tangential verlaufende Randbereiche 17, 17a aufweisen.The two propeller-
Der Flächenabschnitt 14b mit dem Randbereich 16a mit stark gewölbtem Bogenverlauf 16'a ist steuerbordseitig liegend.The
Der untere Ruderblattabschnitt 20 weist gemäß
Die beiden propellerseitigen Flächenabschnitte 24a, 24b des Querschnittsprofils 22 des oberen Ruderblattabschnittes 20 weisen Randbereiche 26, 26a mit einem flachen Bogenverlauf 26' und einem gewölbten Bogenverlauf 26'a auf, wobei die beiden dem Propeller 220 abgekehrten Flächen 25a, 25b des Querschnittsprofils 22 des unteren Ruderblattabschnittes 20 tangential verlaufende Randbereiche 27, 27a aufweisen.The two propeller-
Der Flächenabschnitt 24b mit dem Randbereich 26'a mit stark gewölbtem Bogenverlauf 26'a ist backbordseitig liegend.The
Die Ausgestaltung und Anordnung der beiden Ruderblattabschnitte 10, 20 erbringt, dass die dem Propeller 220 zugeordnete Nasenleiste 11 des oberen Ruderblattabschnittes 10 backbordseitig zur Mittellinie M1 und die Nasenleiste 21 des unteren Ruderblattabschnittes 20 steuerbordseitig zur Mittellinie M2 liegend sind, wobei die beiden Ruderblattabschnitte 10, 20 im rückwärtigen Bereich des Ruderblattes 100 in einer Endleiste 30 zusammengeführt sind.The design and arrangement of the two
Nach den
Die Erfindung schließt jedoch auch eine Ausgestaltung des Ruders mit ein, nach der die beiden Ruderblattabschnitte 10, 20 des Ruderblattes 100 mit ihren Querschnittsprofilen 12, 22 derart zueinander angeordnet sind, dass die Seitenwandabschnitte des Ruderblattes, die im Bereich der stark gekrümmten Bogenverläufe 16'a und 26'a der Flächenabschnitte 14b und 24b backbordseitig und steuerbordseitig liegen, wobei dann der Flächenabschnitt 14b des Querschnittsprofils 12 der Backbordseite und der Flächenabschnitt 24b des Querschnittsprofils 22 der Steuerbordseite zugekehrt sind, so dass die Nasenleisten 11, 21 der beiden Ruderblattabschnitte 10, 20 steuerbordseitig und backbordseitig liegen.However, the invention also includes an embodiment of the rudder, according to which the two
Bei der in
Das Ruderkokerlager 120 ist als Kragträger mit einer mittigen Innenlängsbohrung 125 zur Aufnahme des Ruderschaftes 140 für das Ruderblatt 100 versehen. Außerdem ist das Ruderkokerlager 120 bis an das mit dem Ruderschaftende verbundene Ruderblatt 100 hinreichend ausgebildet. In seiner Innenbohrung 125 weist das Ruderkokerlager 120 ein Lager 150 zur Lagerung des Ruderschaftes 140 auf, wobei vorzugsweise dieses Lager 150 im unteren Endbereich 120b des Ruderkokerlagers 120 angeordnet ist. Der Ruderschaft 140 ist mit seinem Ende 140b mit einem Abschnitt 145 aus dem Ruderkokerlager 120 herausgeführt. Das freie untere Ende dieses verlängerten Abschnittes 145 des Ruderschaftes 140 ist mit dem Ruderblatt 100 bei 170 fest verbunden, wobei jedoch auch hier eine Verbindung vorgesehen ist, die ein Lösen des Ruderblattes 100 von dem Ruderschaft 140 ermöglicht, wenn die Propellerwelle ausgetauscht werden soll. Die Verbindung des Ruderschaftes 140 im Bereich 170 mit dem Ruderblatt 100 liegt dabei oberhalb der Propellerwellenmitte 200, so dass für den Ausbau der Propellerwelle lediglich das Ruderblatt 100 von dem Ruderschaft 140 abgenommen werden muss, während dagegen ein Herausziehen des Ruderschaftes 140 aus dem Ruderkokerlager 120 nicht erforderlich ist, da sowohl das freie untere Ende 120b des Ruderkokerlagers 120 als auch das freie untere Ende des Ruderschaftes 140 oberhalb der Propellerwellenmitte liegen. Bei dieser in
Bei dem Ruder ist das Ruderkokerlager 120 als Kragträger mit einer mittigen Innenlängsbohrung 125 zur Aufnahme des Ruderschaftes 140 für das Ruderblatt 100 versehen. Des Weiteren ist das Ruderkokerlager 120 bis in das in dem Ruderschaftende verbundene Ruderblatt 100 hineinreichend ausgebildet und weist in seiner Innenbohrung 125 ein Lager 150 zur Lagerung des Ruderschaftes 140 in dem Ruderkokerlager 120 auf. Mit seinem freien Ende 120b ist das Ruderkokerlager 120 in einer Ausnehmung oder Einziehung 160 in dem Ruderblatt 100 hineinreichend, wobei der Ruderschaft 140 in seinem Endbereich 140b mit einem Abschnitt 145 aus dem Ruderkokerlager 120 herausgeführt ist. Mit dem freien Ende dieses verlängerten Abschnittes 145 ist der Ruderschaft 140 mit dem Ruderblatt 100 verbunden, wobei die Verbindung des Ruderschaftes 140 mit dem Ruderblatt 100 oberhalb der Propellerwellenmitte 200 liegend ist. Im Endbereich 120b des Ruderkokerlagers 120 ist vorzugsweise das Innenlager 150 vorgesehen.In the rudder the rudder trunk bearing 120 is provided as a cantilever with a central inner
Die Erfindung ist nicht beschränkt auf die vorangehend beschriebenen und in der Zeichnung dargestellten Ausführungsformen. Abweichungen in der Anordnung des Lagers im Bereich des Ruderkokerlagers 120 und des Ruderschaftes 140 liegen ebenso im Rahmen der Erfindung wie eine andere Ausbildung der zylindrischen Einziehung 160 im Ruderblatt 11. Die erfindungsgemäß ausgebildete Ruderanordnung ist sowohl bei Schiffen als auch bei schwimmenden Plattformen o. dgl. anwendbar.The invention is not limited to the embodiments described above and illustrated in the drawing. Deviations in the arrangement of the bearing in the area of the rudder trunk bearing 120 and the
Claims (5)
dadurch gekennzeichnet,
dass das Ruderblatt (100) zwei übereinander liegende Ruderblattabschnitte (10, 20) aufweist, deren dem Propeller (220) zugekehrten vorderen Nasenleisten (11, 21) derart versetzt sind, dass die eine Nasenleiste (11) nach Backbord (BB) oder Steuerbord (SB) und die andere Nasenleiste (21) nach Steuerbord (SB) oder Backbord (BB) versetzt sind, wobei die beiden Seitenwandflächen des Ruderblattes (100) in eine dem Propeller (220) abgewandte Endleiste (30) zusammenlaufen, wobei an das Ruderblatt (100) im Bereich der für den oberen Ruderblattabschnitt (10) und den unteren Ruderblattabschnitt (20) gemeinsamen Endleiste (30) eine Flosse (135) angelenkt ist.Rudder for ships, comprising a rudder blade (100) and a propeller (220) associated with the rudder and arranged on a drivable propeller shaft (225).
characterized,
in that the rudder blade (100) has two rudder blade sections (10, 20) lying one above the other, whose front nose ledges (11, 21) facing the propeller (220) are offset in such a manner that the one leading edge (11) to port (BB) or starboard (11) SB) and the other nose strip (21) to starboard (SB) or port (BB) are offset, the two side wall surfaces of the rudder blade (100) in a propeller (220) facing away from the end bar (30) converge, wherein the rudder blade ( 100) in the region of the upper rudder blade section (10) and the lower rudder blade section (20) common end strip (30) has a fin (135) is articulated.
dadurch gekennzeichnet,
dass das Ruderblatt (100) zwei übereinanderliegende Abschnitte (10, 20) aufweist, deren dem Propeller (220) zugekehrten vorderen Nasenleisten (11, 21) derart versetzt sind, dass die eine Nasenleiste (11) nach Backbord (BB) und die andere Nasenleiste (21) nach Steuerbord (SB) versetzt sind, wobei die beiden Seitenwandflächen (100a, 100b) des Ruderblattes (100) in eine dem Propeller (220) abgewandte Endleiste (30) zusammenlaufen, an das Ruderblatt (100) im Bereich der für den oberen Ruderblattabschnitt (10) und den unteren Ruderblattabschnitt (20) gemeinsamen Endleiste (30) eine Flosse (135) angelenkt ist, und dass das Ruderkokerlager (120) als Kragträger mit einer mittigen Innenlängsbohrung (125) zur Aufnahme des Ruderschaftes (140) für das Ruderblatt (100) versehen ist und bis in das mit dem Ruderschaftende verbundene Ruderblatt (100) hineinreichend ausgebildet ist, wobei zur Lagerung des Ruderschaftes (140) ein Lager (150) in der Innenlängsbohrung (125) des Ruderkokerlagers (120) angeordnet ist, das mit seinem freien Ende (120b) in eine Ausnehmung, Einziehung o. dgl. (160) in dem Ruderblatt (100) hineinreicht, wobei der Ruderschaft (140) in seinem Endbereich (140b) mit einem Abschnitt (145) aus dem Ruderkkokerlager (120) herausgeführt und mit dem Ende dieses Abschnittes (145) mit dem Ruderblatt (100) verbunden ist, wobei keine Lagerung zwischen dem Ruderblatt (100) und dem Ruderkokerlager (120) vorgesehen ist und wobei die Verbindung des Ruderschaftes (140) mit dem Ruderblatt (100) oberhalb der Propellerwellenmitte (200) liegt, wobei das Innenlager (150) für die Lagerung des Ruderschaftes (140) in dem Ruderkokerlager (120) im Endbereich des Ruderkokerlagers (120) angeordnet ist.Rudder for ships, comprising a rudder blade (100) and a propeller (220) associated with the rudder and arranged on a drivable propeller shaft (225).
characterized,
in that the rudder blade (100) has two superimposed sections (10, 20) whose front nose strips (11, 21) facing the propeller (220) are offset such that one nose strip (11) to port (BB) and the other nose strip (21) are offset to starboard (SB), wherein the two side wall surfaces (100a, 100b) of the rudder blade (100) converge in an end bar (30) facing away from the propeller (220), to the rudder blade (100) in the region of the upper rudder blade section (10) and the lower rudder blade section (20) common end rail (30) a fin (135) is hinged, and that the rudder trunk bearing (120) is provided as a cantilever with a central inner longitudinal bore (125) for receiving the rudder shank (140) for the rudder blade (100) and up to the rudder blade (100 ), wherein for storage of the rudder stock (140) a bearing (150) in the inner longitudinal bore (125) of the rudder rod bearing (120) is arranged, with its free end (120 b) in a recess, collection o. The like. 160) in the rudder blade (100), wherein the rudder stock (140) in its end region (140b) led out with a portion (145) from the rudder trunk bearing (120) and with the end of this section (145) with the rudder blade (100). wherein no bearing between the rudder blade (100) and the rudder rod bearing (120) is provided and wherein the connection of the rudder stock (140) with the rudder blade (100) above the propeller shaft center (200), wherein the inner layer r (150) is arranged for the storage of the rudder stock (140) in the rudder trunk bearing (120) in the end region of the rudder trunk bearing (120).
dadurch gekennzeichnet,
dass der obere Ruderblattabschnitt (10) des Ruderblattes (100) ein Querschnittsprofil (12) aufweist, das von
gebildet wird, wobei
characterized,
in that the upper rudder blade section (10) of the rudder blade (100) has a cross-sectional profile (12) which differs from
is formed, where
dadurch gekennzeichnet,
dass die beiden propellerseitigen Flächenabschnitte (14a, 14b) des Querschnittsprofils (12) des oberen Ruderblattabschnittes (10) Randbereiche (16, 16a) mit einem flachen Bogenverlauf (16') und einem gewölbten Bogenverlauf (16'a) aufweisen, wobei die beiden dem Propeller (220) abgekehrten Flächenabschnitte (15a, 15b) des Querschnittsprofils (12) des oberen Ruderblattabschnittes (10) tangential verlaufende Randbereiche (17, 17a) aufweisen, wobei der Flächenabschnitt (14b) mit dem Randbereich (16a) mit gewölbtem Bogenverlauf (16'a) steuerbordseitig liegend ist.Rudder blade according to one of claims 1 to 3,
characterized,
that the two propeller-side surface portions (14a, 14b) of the cross-sectional profile (12) of the upper rudder blade section (10) edge regions (16, 16a) with a flat curved course (16 ') and a vaulted curved course (16'a), whereby both the Propeller (220) abgekehrten surface portions (15a, 15b) of the cross-sectional profile (12) of the upper rudder blade section (10) tangentially extending edge regions (17, 17a), wherein the surface portion (14b) with the edge region (16a) with a curved arc (16 '; a) is located on the starboard side.
dadurch gekennzeichnet,
dass die beiden propellerseitigen Flächenabschnitte (24a, 24b) des Querschnittsprofils (22) des unteren Ruderblattabschnittes (20) Randbereiche (26, 26a) mit einem flachen Bogenverlauf (26') und einem gewölbten Bogenverlauf (26'a) aufweisen, wobei die beiden dem Propeller (220) abgekehrten Flächenabschnitte (25a, 25b) des Querschnittsprofils (22) des unteren Ruderblattabschnittes (20) tangential verlaufende Randbereiche (27, 27a) aufweisen, wobei der Flächenabschnitt (24b) in dem Randbereich (26a) mit gewölbtem Bogenverlauf (26'a) backbordseitig liegend ist.Rudder blade according to one of claims 1 to 4,
characterized,
that the two propeller-side surface portions (24a, 24b) (26a 26) with a flat curved course (26 ') and a vaulted curved course (26'a), (20) have edge regions of the cross-sectional profile (22) of the lower rudder blade section, wherein the two the Propeller (220) abgekehrten surface portions (25a, 25b) of the cross-sectional profile (22) of the lower rudder blade portion (20) tangentially extending edge regions (27, 27a), wherein the surface portion (24b) in the edge region (26a) with a curved arc (26 ' a) is located on the port side.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202004006453U DE202004006453U1 (en) | 2004-04-23 | 2004-04-23 | Oars for ships |
EP04740144A EP1626897B1 (en) | 2004-04-23 | 2004-06-22 | Rudder for ships |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04740144A Division EP1626897B1 (en) | 2004-04-23 | 2004-06-22 | Rudder for ships |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2025593A2 true EP2025593A2 (en) | 2009-02-18 |
EP2025593A3 EP2025593A3 (en) | 2009-04-01 |
EP2025593B1 EP2025593B1 (en) | 2016-08-17 |
Family
ID=33441997
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04740144A Revoked EP1626897B1 (en) | 2004-04-23 | 2004-06-22 | Rudder for ships |
EP07013643.7A Expired - Lifetime EP1857358B1 (en) | 2004-04-23 | 2004-06-22 | Rudder for ships |
EP08015619.3A Expired - Lifetime EP2025593B1 (en) | 2004-04-23 | 2004-06-22 | Rudder for ships |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04740144A Revoked EP1626897B1 (en) | 2004-04-23 | 2004-06-22 | Rudder for ships |
EP07013643.7A Expired - Lifetime EP1857358B1 (en) | 2004-04-23 | 2004-06-22 | Rudder for ships |
Country Status (14)
Country | Link |
---|---|
EP (3) | EP1626897B1 (en) |
JP (2) | JP4410656B2 (en) |
KR (2) | KR20050103137A (en) |
CN (2) | CN100351143C (en) |
AT (1) | ATE431285T1 (en) |
DE (8) | DE202004006453U1 (en) |
DK (2) | DK1857358T3 (en) |
ES (3) | ES2323784T3 (en) |
HK (1) | HK1083813A1 (en) |
PL (2) | PL1857358T3 (en) |
PT (1) | PT1626897E (en) |
SI (1) | SI1626897T1 (en) |
TW (2) | TWI295982B (en) |
WO (1) | WO2005113332A1 (en) |
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KR100899737B1 (en) * | 2007-10-29 | 2009-05-27 | 대우조선해양 주식회사 | Full spade rudder with twisted leading edge having a small rudder bulb |
DE202007015941U1 (en) * | 2007-11-13 | 2008-01-17 | Becker Marine Systems Gmbh & Co. Kg | Oars for ships |
PT2060486E (en) * | 2007-11-13 | 2010-03-12 | Becker Marine Sys Gmbh & Co Kg | Rudder for ships with high speeds with a cavitation reducing, twisted, in particular floating rudder |
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KR100903066B1 (en) * | 2009-04-15 | 2009-06-18 | 대우조선해양 주식회사 | Full spade rudder with twisted leading edge having a small rudder bulb |
KR100903067B1 (en) * | 2009-04-16 | 2009-06-18 | 대우조선해양 주식회사 | Full spade rudder with twisted leading edge having a small rudder bulb |
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KR200447816Y1 (en) * | 2009-07-10 | 2010-02-23 | 대우조선해양 주식회사 | Rudder of ship |
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CN105416554B (en) * | 2015-12-24 | 2017-09-29 | 九成投资集团有限公司 | With rudder blade from song to guide margin |
JP6582296B2 (en) * | 2016-03-31 | 2019-10-02 | 三井E&S造船株式会社 | Ship rudder and ship |
CN106985993B (en) * | 2017-03-17 | 2019-01-04 | 绍兴开源机电科技有限公司 | A kind of combined type ship rudder blade |
JP7148329B2 (en) * | 2018-09-03 | 2022-10-05 | 住友重機械マリンエンジニアリング株式会社 | Rudder blades and ships |
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-
2004
- 2004-04-23 DE DE202004006453U patent/DE202004006453U1/en not_active Expired - Lifetime
- 2004-06-22 DK DK07013643.7T patent/DK1857358T3/en active
- 2004-06-22 WO PCT/EP2004/006713 patent/WO2005113332A1/en not_active Application Discontinuation
- 2004-06-22 EP EP04740144A patent/EP1626897B1/en not_active Revoked
- 2004-06-22 DE DE202004021495U patent/DE202004021495U1/en not_active Expired - Lifetime
- 2004-06-22 DE DE502004009484T patent/DE502004009484D1/en not_active Expired - Lifetime
- 2004-06-22 EP EP07013643.7A patent/EP1857358B1/en not_active Expired - Lifetime
- 2004-06-22 ES ES04740144T patent/ES2323784T3/en not_active Expired - Lifetime
- 2004-06-22 DE DE202004021474U patent/DE202004021474U1/en not_active Expired - Lifetime
- 2004-06-22 DE DE202004021223U patent/DE202004021223U1/en not_active Expired - Lifetime
- 2004-06-22 SI SI200431117T patent/SI1626897T1/en unknown
- 2004-06-22 EP EP08015619.3A patent/EP2025593B1/en not_active Expired - Lifetime
- 2004-06-22 ES ES08015619.3T patent/ES2602562T3/en not_active Expired - Lifetime
- 2004-06-22 PL PL07013643T patent/PL1857358T3/en unknown
- 2004-06-22 ES ES07013643.7T patent/ES2604756T3/en not_active Expired - Lifetime
- 2004-06-22 DE DE202004021604U patent/DE202004021604U1/en not_active Expired - Lifetime
- 2004-06-22 DK DK04740144T patent/DK1626897T3/en active
- 2004-06-22 DE DE202004021218U patent/DE202004021218U1/en not_active Expired - Lifetime
- 2004-06-22 PL PL04740144T patent/PL1626897T3/en unknown
- 2004-06-22 PT PT04740144T patent/PT1626897E/en unknown
- 2004-06-22 DE DE202004021222U patent/DE202004021222U1/en not_active Expired - Lifetime
- 2004-06-22 AT AT04740144T patent/ATE431285T1/en not_active IP Right Cessation
- 2004-10-21 TW TW093131982A patent/TWI295982B/en active
- 2004-10-21 TW TW096110096A patent/TWI302894B/en active
- 2004-10-28 KR KR1020040086554A patent/KR20050103137A/en not_active Application Discontinuation
- 2004-10-29 JP JP2004316211A patent/JP4410656B2/en not_active Expired - Lifetime
- 2004-10-29 CN CNB2004100901610A patent/CN100351143C/en not_active Expired - Lifetime
- 2004-10-29 CN CN2007100052561A patent/CN101016082B/en not_active Expired - Lifetime
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2006
- 2006-03-24 HK HK06103725A patent/HK1083813A1/en not_active IP Right Cessation
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2007
- 2007-01-18 JP JP2007009039A patent/JP4597146B2/en not_active Expired - Lifetime
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2009
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8708276U1 (en) | 1987-06-12 | 1987-08-27 | Willi Becker Ingenieurbüro GmbH, 2000 Hamburg | Rudders, especially balanced profile rudders for watercraft |
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