EP2025593B1 - Rudder for ships - Google Patents

Rudder for ships Download PDF

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Publication number
EP2025593B1
EP2025593B1 EP08015619.3A EP08015619A EP2025593B1 EP 2025593 B1 EP2025593 B1 EP 2025593B1 EP 08015619 A EP08015619 A EP 08015619A EP 2025593 B1 EP2025593 B1 EP 2025593B1
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EP
European Patent Office
Prior art keywords
rudder
cross
sectional
propeller
rudder blade
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EP08015619.3A
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German (de)
French (fr)
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EP2025593A2 (en
EP2025593A3 (en
Inventor
Dirk Lehmann
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Becker Marine Systems GmbH and Co KG
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Becker Marine Systems GmbH and Co KG
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Application filed by Becker Marine Systems GmbH and Co KG filed Critical Becker Marine Systems GmbH and Co KG
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    • 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 arrangement for fast ships with highly loaded propellers.
  • Ship rudders such as full-floating rudder or balance rudder, with or without hinged fin, are known in various embodiments.
  • the DE 44 26 953 A1 discloses a rudder or rudder nozzle for marine craft having a pivoting main rudder or swivel rudder nozzle and a fin articulated to the main rudder or rudder nozzle, the main rudder or rudder nozzle being located at a location in the floor structure of the ship's stern arranged known Ruderkokers, flat hollow-plate bearing is rotatably mounted and wherein in the hollow-column bearing a Flossenruderschaft is rotatably mounted, which is brought via a lever-pin slide-fork connection with the fin in operative connection.
  • the GB 332 082 A describes a ship's rudder of the rowing types "balanced” or "semibalanced".
  • the side surfaces of the rudder converge asymmetrically from either side of the rudder axis to a leading edge offset above the axis of the bolt to one side and below said axis to the other side, the leading edge being opposed to the water of the screw stream during normal forward travel of the vessel. Further, the side surfaces converge symmetrically from both sides of the rudder axis to a trailing edge located in the median plane of the rudder.
  • a rudder is described in which in a cross-sectional view, the nose strip is formed in a symmetrical wing shape, wherein the end bar of the upper part above the propeller shaft and the lower part are rotated below the propeller shaft to each other, so that they correspond to flow vectors. Furthermore, cross-sections of another rudder are disclosed in which a cross-section is offset from the other cross-section in the region of the leading edge.
  • the DE-U-87 08 276 discloses a rudder, in particular a balance profiled rudder for watercraft, with a fin articulated on the rudder blade and with a rudder rod bearing which is provided as a cantilever with a central longitudinal inner bore for receiving the rudder shank for the rudder blade, to the rudder blade connected to the rudder end is formed in sufficient extent, in its inner bore has a bearing for supporting the rudder stock, and on its outer wall surface approximately at the same height to the bearing in the inner longitudinal bore of the rudder rod bearing another bearing for receiving and supporting the rudder blade has, the rudder stock with his in the rudder blade lying end up in the range of the propeller shaft center or to above the propeller shaft center is guided.
  • the KR 2001-0009112 describes a ship's rudder, in which the front end at the level of the propeller axis in the upper and lower part separated and these are twisted in the opposite direction with each other. At the adjacent area of the upper and lower part of a streamlined bulb is provided according to the asymmetric property of the complex rotational flows.
  • the rudder assembly for fast ships an oar consisting of a rudder blade and a rudder associated, arranged on a drivable propeller propeller, on.
  • the rudder blade consists of only two superimposed rudder blade sections, the propeller facing, a rounded profile having 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, the two side panels of the rudder blade converge in an end bar facing away from the propeller.
  • the rudder assembly on a fin, which is articulated to the rudder blade in the region of the end bar.
  • 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 rudder trunk bearing is designed 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 storage of the rudder stock a single bearing is arranged in the inner longitudinal bore of the rudder trunk bearing, with its free End in a recess, collection o. The like.
  • the rudder stock is led out in its end with a portion of the rudder trunk bearing and releasably connected to the, free, lower end of this section with the rudder blade, with no storage between the rudder blade and the rudder trunk bearing is provided and the connection of the rudder stock with the rudder blade is above the propeller shaft center, the inner bearing is arranged for the storage of the rudder stock in the rudder trunk 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 bead extending to the rear end strip and up to a maximum profile thickness conically expanding front cross-sectional area and adjoining the front cross-sectional area and is formed to the rear end bar conically tapered rear cross-sectional area, wherein the two formed by a running in the longitudinal direction of the rudder blade center line
  • Cross-sectional area portion have different sizes, of which the larger cross-sectional area portion is located on the port side and the smaller cross-sectional area is starboard side lying, wherein the two formed by the center line in the rear region of the cross-sectional profile cross-sectional area portion are the same, and that the lower rudder blade portion of the rudder blade has a cross-sectional profile, the from a front cross-sectional area extending from the leading leading edge and extending to a maximum profile thickness, and being formed adjacent to the anterior cross-sectional area and forming a rearward cross-sectional area, the two extending from a centerline extending longitudinally of the rudder leaf formed front cross-sectional area portion have different sizes, of which the larger Querterrorismsf lying on the starboard side and the smaller cross-sectional area portion is located on the port side, wherein the two of the center line in the rear region of the cross-sectional profile formed cross-sectional area are the same, so that the propeller associated with the nose of the upper rudder blade section
  • the two propeller-side cross-sectional surface portions of the cross-sectional profile of the upper rudder blade portion have edge regions with a flat arc and a highly curved arc, the two facing away from the propeller cross-sectional surface portions of the cross-sectional profile of the upper rudder blade portion tangentially extending edge region, wherein the cross-sectional surface portion with the edge region with a highly curved arc curve starboard side lying down.
  • the two propeller-side cross-sectional surface portions of the cross-sectional profile of the lower rudder blade portion have edge region with a flat arc and a highly curved arc, the two facing away from the propeller cross-sectional surface portions of the cross-sectional profile of lower rudder blade portion have tangentially extending edge regions, wherein the cross-sectional surface portion is lying on the port side with the edge region with strongly arched bow course.
  • a rudder box bearing 100 a rudder blade and 140 denotes a rudder stock.
  • the rudder blade 100 is assigned a propeller 220 arranged on a drivable propeller shaft 225.
  • 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 of the leading edge 11 to the end bar 30 to a maximum profile thickness 13 conically widening front cross-sectional area 14. Adjoining this front cross-sectional area 14 is a rear cross-sectional area 15, which extends to the end bar 30 and tapers to the end bar 30.
  • the front cross-sectional area 14 is subdivided by a center line M1 extending in the longitudinal direction of the rudder blade 100 into two cross-sectional area sections 14a, 14b which have different sizes.
  • the larger cross-sectional area section 14a lies on the port side and the smaller cross-sectional area section 14b faces the starboard side.
  • the rear cross-sectional area 15 is also divided from the center line M1 into two cross-sectional area portions 15a, 15b.
  • the two cross-sectional surface portions 15a, 15b are the same size and have the same shapes.
  • the two propeller-side cross-sectional 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, wherein the two cross-sectional surface sections 15a, 15b of the cross-sectional profile 12 of the upper rudder blade section 10 facing away from the propeller 220 have tangentially extending edge regions 17 17a.
  • the cross-sectional area section 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 cross-sectional area conically widening from the front leading edge 21 to the end strip 30 and up to a maximum profile thickness 23.
  • Adjoining this front cross-sectional area 24 is a cross-sectional area 25 extending to the end bar 30, which tapers to the end bar 30.
  • the front cross-sectional area 24 is subdivided by a center line M2 extending in the longitudinal direction of the rudder blade 100 into two cross-sectional area sections 24a, 24b which have different sizes.
  • the larger cross-sectional area section 24b is located on the starboard side and the small cross-sectional area section 24a faces the port side.
  • the rear cross-sectional area 25 is also divided from the center line M2 into two cross-sectional area portions 25a, 25b.
  • the two cross-sectional surface portions 25a, 25b are the same size and have the same
  • the two propeller-side cross-sectional surface sections 24a, 24b of the cross-sectional profile 22 of the upper rudder blade section 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 cross-sectional surfaces 25a, 25b of the cross-sectional profile 22 of the lower Ruderblattabiteses 20 tangentially extending edge regions 27, 27a have.
  • the cross-sectional surface portion 24b with the edge region 26'a with a strongly arched arc 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 arc curves 16'a and 26'a the cross-sectional surface portions 14b and 24b starboard side and port side, then the cross-sectional surface portion 14b of the cross-sectional profile 12 of the starboard side and the cross-sectional 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 cross-sectional surface portions 14b and 24b are port side and starboard side, in which case the cross-sectional surface portion 14b of the port side cross-sectional profile 12 and the cross-sectional surface portion 24b of the starboard cross-sectional profile 22 are facing, so that the nose strips 11, 21 of the two rudder blade sections 10, 20 are starboard side and port side.
  • a hull 120 a rudder box bearing, 100 a rudder blade and 140 denotes a rudder stock.
  • a fin 135 is hinged.
  • the rudder blade 100 has a preferably cylindrical recess 155 for receiving the free end 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 or recess indicated at 160.
  • 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.

Abstract

Rudder has rudder blade (100) which comprises a fin and two superimposed section. The propeller (220) turned to front leading edge is transferred in such a manner that one leading edge transfers after the port side and the other leading edge transferred after the star board. The two side panel surfaces of the rudder blade run together in the propeller to turn away the trailing edge. The rudder spindle (140) in its end area with a section is led out from the rudder trunk bearing (120) and the end of this section is connected with the rudder blade. No bearing is provided between the rudder blade and the rudder trunk bearing. The connection of the rudder spindle with the rudder blade lies above the centre of the propeller shafts. The inner bearing for the bearing of the rudder spindle is arranged in the rudder trunk bearing at the end area of the rudder trunk bearing. An independent claim is also included for the rudder blade.

Description

Die Erfindung betrifft eine Ruderanordnung für schnelle Schiffe mit hochbelasteten Propellern.The invention relates to a rudder arrangement for fast ships with highly loaded propellers.

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.

Die DE 44 26 953 A1 offenbart ein Ruder oder einer Ruderdüse mit angelenkter Flosse für Wasserfahrzeuge, das ein verschwenkbares Hauptruder oder eine verschwenkbare Ruderdüse und eine an dem Hauptruder oder an der Ruderdüse angelenkte Flosse aufweist, wobei das Hauptruder oder die Ruderdüse an einer in der Bodenkonstruktion des Schiffshecks am Ort des allgemein bekannten Ruderkokers angeordneten, flachen Hohlsäulen-Tellerlagerung drehbar befestigt ist und wobei in der Hohlsäulen-Tellerlagerung ein Flossenruderschaft drehbar gelagert ist, der über eine Hebel-Zapfen-Gleitstück-Gabelverbindung mit der Flosse in Wirkverbindung gebracht ist.The DE 44 26 953 A1 discloses a rudder or rudder nozzle for marine craft having a pivoting main rudder or swivel rudder nozzle and a fin articulated to the main rudder or rudder nozzle, the main rudder or rudder nozzle being located at a location in the floor structure of the ship's stern arranged known Ruderkokers, flat hollow-plate bearing is rotatably mounted and wherein in the hollow-column bearing a Flossenruderschaft is rotatably mounted, which is brought via a lever-pin slide-fork connection with the fin in operative connection.

Die GB 332 082 A beschreibt ein Schiffsruder der Rudertypen "balanced" oder "semibalanced". Die Seitenflächen des Ruders konvergieren asymmetrisch von beiden Seiten der Ruderachse zu einer Vorderkante, die oberhalb der Schraubenachse zu einer Seite und unterhalb der genannten Achse zur anderen Seite versetzt ist, wobei die Vorderkante bei normaler Vorwärtsfahrt des Schiffes dem Wasser des Schraubenstromes entgegengerichtet ist. Ferner konvergieren die Seitenflächen symmetrisch von beiden Seiten der Ruderachse zu einer Hinterkante, die sich in der Mittelebene des Ruders befindet.The GB 332 082 A describes a ship's rudder of the rowing types "balanced" or "semibalanced". The side surfaces of the rudder converge asymmetrically from either side of the rudder axis to a leading edge offset above the axis of the bolt to one side and below said axis to the other side, the leading edge being opposed to the water of the screw stream during normal forward travel of the vessel. Further, the side surfaces converge symmetrically from both sides of the rudder axis to a trailing edge located in the median plane of the rudder.

Nach der JP 58030896 A ist ein Ruder beschrieben, bei dem in einer Querschnittsbetrachtung die Nasenleiste in einer symmetrischen Flügelform ausgebildet ist, wobei bei der Endleiste der obere Teil oberhalb der Propellerwelle und der untere Teil unterhalb der Propellerwelle zueinander verdreht sind, derart, dass sie Strömungsvektoren entsprechen. Ferner sind Querschnitte eines anderen Ruders offenbart, bei dem ein Querschnitt gegenüber dem anderen Querschnitt im Bereich der Nasenleiste versetzt ist.After JP 58030896 A a rudder is described in which in a cross-sectional view, the nose strip is formed in a symmetrical wing shape, wherein the end bar of the upper part above the propeller shaft and the lower part are rotated below the propeller shaft to each other, so that they correspond to flow vectors. Furthermore, cross-sections of another rudder are disclosed in which a cross-section is offset from the other cross-section in the region of the leading edge.

Die DE-U-87 08 276 offenbart ein Ruder, insbesondere ein Balance-Profilruder für Wasserfahrzeuge, mit einer am Ruderblatt angelenkten Flosse und mit einem Ruderkokerlager, welches als Kragträger mit einer mittigen Innen-Längsbohrung zur Aufnahme des Ruderschaftes für das Ruderblatt versehen ist, bis in das mit dem Ruderschaftende verbundene Ruderblatt hineinreichend ausgebildet ist, in seiner Innenbohrung ein Lager zur Lagerung des Ruderschaftes aufweist, und an seiner Außenwandfläche etwa in gleicher Höhe zu dem Lager in der Innenlängsbohrung des Ruderkokerlagers ein weiteres Lager zur Aufnahme und Abstützung des Ruderblattes aufweist, wobei der Ruderschaft mit seinem in dem Ruderblatt liegenden Ende bis in den Bereich der Propellerwellenmitte oder bis oberhalb der Propellerwellenmitte geführt ist.The DE-U-87 08 276 discloses a rudder, in particular a balance profiled rudder for watercraft, with a fin articulated on the rudder blade and with a rudder rod bearing which is provided as a cantilever with a central longitudinal inner bore for receiving the rudder shank for the rudder blade, to the rudder blade connected to the rudder end is formed in sufficient extent, in its inner bore has a bearing for supporting the rudder stock, and on its outer wall surface approximately at the same height to the bearing in the inner longitudinal bore of the rudder rod bearing another bearing for receiving and supporting the rudder blade has, the rudder stock with his in the rudder blade lying end up in the range of the propeller shaft center or to above the propeller shaft center is guided.

Die KR 2001-0009112 beschreibt ein Schiffsruder, bei welchem das Vorderende in Höhe der Propellerachse in Ober- und Unterteil getrennt und diese in Gegenrichtung miteinander verdrillt werden. Am angrenzenden Bereich des Ober- und Unterteils wird eine stromlinienförmige Birne entsprechend der asymmetrischen Eigenschaft der komplexen Drehströmungen vorgesehen.The KR 2001-0009112 describes a ship's rudder, in which the front end at the level of the propeller axis in the upper and lower part separated and these are twisted in the opposite direction with each other. At the adjacent area of the upper and lower part of a streamlined bulb is provided according to the asymmetric property of the complex rotational flows.

Es ist Aufgabe der Erfindung, eine Ruderanordnung für schnelle Schiffe mit hochbelasteten Propellern zu schaffen, bei der Erosionserscheinungen am Ruder durch Kavitationsbildung vermieden werden.It is an object of the invention to provide a rudder assembly for fast ships with highly loaded propellers, are avoided in the erosion phenomena at the rudder by cavitation.

Gelöst wird diese Aufgabe bei einer Ruderanordnung gemäß der eingangs beschriebenen Art mit den im Anspruch 1 angegebenen Merkmalen.This object is achieved in a rudder assembly according to the type described above with the features specified in claim 1.

Hiernach weist die Ruderanordnung für schnelle Schiffe ein Ruder bestehend aus einem Ruderblatt und einem dem Ruder zugeordneten, auf einer antreibbaren Propellerachse angeordneten Propeller, auf. Ferner besteht das Ruderblatt aus nur zwei übereinanderliegenden Ruderblattabschnitten, deren dem Propeller zugekehrten, ein abgerundetes Profil aufweisenden, 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. Weiterhin weist die Ruderanordnung eine Flosse auf, die an das Ruderblatt im Bereich der Endleiste angelenkt ist.Hereinafter, the rudder assembly for fast ships an oar consisting of a rudder blade and a rudder associated, arranged on a drivable propeller propeller, on. Further, the rudder blade consists of only two superimposed rudder blade sections, the propeller facing, a rounded profile having 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, the two side panels of the rudder blade converge in an end bar facing away from the propeller. Furthermore, the rudder assembly on a fin, which is articulated to the rudder blade in the region of the end bar.

Der Vorteil einer derart ausgebildeten Ruderanordnung mit zwei spiegelverkehrten Querschnittsprofilen besteht zum einen in der Verhinderung der Dampfblasenbildung und zum anderen in der Verhinderung von Erosionserscheinungen an der Ruderanordnung bzw. am Ruder, die durch Kavitationsbildung bei schnellen Schiffen mit hochbelasteten Propellern auftritt. Neben einem erheblichen Kavitationsschutz ist auch eine Verbesserung des Wirkungsgrades gegeben. Eine gravierende Gewichtseinsparung wird erreicht.The advantage of such a trained rudder assembly with two mirror-inverted cross-sectional profiles on the one hand in the prevention of vapor formation and on the other in the prevention of erosion at the rudder assembly or at the rudder, which occurs by cavitation in fast ships with highly loaded propellers. 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.

Ferner weist die Ruderanordnung einen Ruderschaft und ein Ruderkokerlager auf. Das Ruderkokerlager ist als Kragträger mit einer mittigen Innenlängsbohrung zur Aufnahme des Ruderschaftes für das Ruderblatt ausgebildet und bis in das mit dem Ruderschaftende verbundene Ruderblatt hineinreichend ausgebildet ist, wobei zur Lagerung des Ruderschaftes ein einziges 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, freien, unteren Ende dieses Abschnittes mit dem Ruderblatt lösbar 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.Furthermore, the rudder assembly on a rudder stock and a rudder koker camp. The rudder trunk bearing is designed 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 storage of the rudder stock a single bearing is arranged in the inner longitudinal bore of the rudder trunk bearing, 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 releasably connected to the, free, lower end of this section with the rudder blade, with no storage between the rudder blade and the rudder trunk bearing is provided and the connection of the rudder stock with the rudder blade is above the propeller shaft center, the inner bearing is arranged for the storage of the rudder stock in the rudder trunk in the end of the rudder trunk bearing.

Der Vorteil, der sich bei einer derart ausgebildeten Ruderanordnung ergibt, bei der 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 hierbei 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 a trained rudder assembly, 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 there being another bearing for the rudder blade is required on the outer wall surface of the rudder rod bearing, is that for the replacement of the propeller shaft of the rudder post after removal of the rudder blade from the rudder trunk need not 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.

Ferner ist bei der Ruderanordnung vorgesehen, dass der obere Ruderblattabschnitt des Ruderblattes ein Querschnittsprofil aufweist, das von einer sich von der vorderen Nasenleiste bis zur rückwärtigen Endleiste erstreckenden und sich bis zu einer größten Profildicke konisch sich erweiternden vorderen Querschnittsfläche sowie einer sich an die vordere Querschnittsfläche anschließenden und sich zur rückwärtigen Endleiste konisch sich verjüngenden rückwärtigen Querschnittsfläche gebildet wird, wobei die beiden von einer in Längsrichtung des Ruderblattes verlaufenden Mittellinie gebildeten vorderenFurthermore, it is provided in the rudder arrangement that the upper rudder blade portion of the rudder blade has a cross-sectional profile extending from a front of the leading edge bead extending to the rear end strip and up to a maximum profile thickness conically expanding front cross-sectional area and adjoining the front cross-sectional area and is formed to the rear end bar conically tapered rear cross-sectional area, wherein the two formed by a running in the longitudinal direction of the rudder blade center line

Querschnittsflächenabschnitt unterschiedliche Größen aufweisen, von denen der größere Querschnittsflächenabschnitt backbordseitig liegend ist und der kleinere Querschnittsflächenabschnitt steuerbordseitig liegend ist, wobei die beiden von der Mittellinie im rückwärtigen Bereich des Querschnittsprofils gebildeten Querschnittsflächenabschnitt gleich ausgebildet sind, und dass der untere Ruderblattabschnitt des Ruderblattes ein Querschnittsprofil aufweist, das von einer sich von der vorderen Nasenleiste bis zur rückwärtigen Endleiste erstreckenden und sich zu einer größten Profildicke konisch sich erweiternden vorderen Querschnittsfläche sowie einer sich an die vordere Querschnittsfläche anschließenden und sich zur rückwärtigen Querschnittsfläche gebildet wird, wobei die beiden von einer in Längsrichtung des Ruderblattes verlaufenden Mittellinie gebildeten vorderen Querschnittsflächenabschnitt unterschiedliche Größen aufweisen, von denen der größere Querschnittsflächenabschnitt steuerbordseitig liegend ist und der kleinere Querschnittsflächenabschnitt backbordseitig liegend ist, wobei die beiden von der Mittellinie im rückwärtigen Bereich des Querschnittsprofils gebildeten Querschnittsflächenabschnitt 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.Cross-sectional area portion have different sizes, of which the larger cross-sectional area portion is located on the port side and the smaller cross-sectional area is starboard side lying, wherein the two formed by the center line in the rear region of the cross-sectional profile cross-sectional area portion are the same, and that the lower rudder blade portion of the rudder blade has a cross-sectional profile, the from a front cross-sectional area extending from the leading leading edge and extending to a maximum profile thickness, and being formed adjacent to the anterior cross-sectional area and forming a rearward cross-sectional area, the two extending from a centerline extending longitudinally of the rudder leaf formed front cross-sectional area portion have different sizes, of which the larger Querschnittsf lying on the starboard side and the smaller cross-sectional area portion is located on the port side, wherein the two of the center line in the rear region of the cross-sectional profile formed cross-sectional area are the same, so that the propeller associated with the nose of the upper rudder blade section port side of the center line and the nose strip of the lower rudder blade section starboard side of the Midline is lying.

Die beiden propellerseitigen Querschnittsflächenabschnitte des Querschnittsprofils des oberen Ruderblattabschnittes weisen Randbereiche mit einem flachen Bogenverlauf und einem stark gewölbten Bogenverlauf auf, wobei die beiden dem Propeller abgekehrten Querschnittsflächenabschnitte des Querschnittsprofils des oberen Ruderblattabschnittes tangential verlaufende Randbereich aufweisen, wobei der Querschnittsflächenabschnitt mit dem Randbereich mit stark gewölbtem Bogenverlauf steuerbordseitig liegend ist.The two propeller-side cross-sectional surface portions of the cross-sectional profile of the upper rudder blade portion have edge regions with a flat arc and a highly curved arc, the two facing away from the propeller cross-sectional surface portions of the cross-sectional profile of the upper rudder blade portion tangentially extending edge region, wherein the cross-sectional surface portion with the edge region with a highly curved arc curve starboard side lying down.

Die beiden propellerseitigen Querschnittsflächenabschnitte des Querschnittsprofils des unteren Ruderblattabschnittes weisen Randbereich mit einem flachen Bogenverlauf und einem stark gewölbten Bogenverlauf auf, wobei die beiden dem Propeller abgekehrten Querschnittsflächenabschnitte des Querschnittsprofils des unteren Ruderblattabschnittes tangential verlaufende Randbereiche aufweisen, wobei der Querschnittsflächenabschnitt mit dem Randbereich mit stark gewölbtem Bogenverlauf backbordseitig liegend ist.The two propeller-side cross-sectional surface portions of the cross-sectional profile of the lower rudder blade portion have edge region with a flat arc and a highly curved arc, the two facing away from the propeller cross-sectional surface portions of the cross-sectional profile of lower rudder blade portion have tangentially extending edge regions, wherein the cross-sectional surface portion is lying on the port side with the edge region with strongly 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 und mit einer am Ruderblatt angelenkten Flosse,
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.
Embodiments of the invention are explained below with reference to the drawings. Show it:
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 above the propeller shaft center with the rudder blade and with a fin hinged to the rudder blade,
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 Fig. 1 dargestellten Ruderanordnung ist mit 110 ein Schiffskörper, mit 120 ein Ruderkokerlager, mit 100 ein Ruderblatt und mit 140 ein Ruderschaft bezeichnet. Dem Ruderblatt 100 ist ein auf einer antreibbaren Propellerachse 225 angeordneter Propeller 220 zugeordnet.At the in Fig. 1 110 is a hull, 120 a rudder box bearing, 100 a rudder blade and 140 denotes a rudder stock. The rudder blade 100 is assigned a propeller 220 arranged on a drivable propeller shaft 225.

Das Ruderblatt 100 gemäß Fig. 2A, 2B und 3 weist zwei übereinanderliegende Ruderabschnitte 10, 20 auf, deren dem Propeller 220 zugekehrten vorderen Nasenleisten 11, 31 derart versetzt sind, dass die eine Nasenleiste 11 nach Backbord BB und die andere Nasenleiste 21 nach Steuerbord SB versetzt sind. Die beiden Seitenwandflächen 100a, 100b des Ruderblattes 100 laufen in eine dem Propeller 220 abgewandte Endleiste 30 zusammen.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.

Der obere und der untere Ruderblattabschnitt 10, 20 des Ruderblattes 100 sind dabei wie folgt ausgebildet:The upper and lower rudder blade sections 10, 20 of the rudder blade 100 are formed as follows:

Der obere Ruderblattabschnitt 10 weist gemäß Fig. 4 ein Querschnittsprofil 12 auf, das von einer sich von der vorderen Nasenleiste 11 bis zur Endleiste 30 bis zu einer größten Profildicke 13 konisch sich erweiternden vorderen Querschnittsfläche 14 gebildet wird. An diese vordere Querschnittsfläche 14 schließt sich eine zur Endleiste 30 erstreckende rückwärtige Querschnittsfläche 15 an, die sich zu der Endleiste 30 verjüngt. Die vordere Querschnittsfläche 14 wird von einer in Längsrichtung des Ruderblattes 100 verlaufenden Mittellinie M1 in zwei Querschnittsflächenabschnitte 14a, 14b unterteilt, die unterschiedliche Größen aufweisen.The upper rudder blade section 10 has according to Fig. 4 a cross-sectional profile 12, which is formed by a front of the leading edge 11 to the end bar 30 to a maximum profile thickness 13 conically widening front cross-sectional area 14. Adjoining this front cross-sectional area 14 is a rear cross-sectional area 15, which extends to the end bar 30 and tapers to the end bar 30. The front cross-sectional area 14 is subdivided by a center line M1 extending in the longitudinal direction of the rudder blade 100 into two cross-sectional area sections 14a, 14b which have different sizes.

Der größere Querschnittsflächenabschnitt 14a liegt dabei backbordseitig und der kleinere Querschnittsflächenabschnitt 14b ist der Steuerbordseite zugekehrt. Die rückwärtige Querschnittsfläche 15 wird ebenfalls von der Mittellinie M1 in zwei Querschnittsflächenabschnitte 15a, 15b unterteilt. Hier sind die beiden Querschnittsflächenabschnitte 15a, 15b gleich groß und weisen gleiche Formen auf.The larger cross-sectional area section 14a lies on the port side and the smaller cross-sectional area section 14b faces the starboard side. The rear cross-sectional area 15 is also divided from the center line M1 into two cross-sectional area portions 15a, 15b. Here, the two cross-sectional surface portions 15a, 15b are the same size and have the same shapes.

Die beiden propellerseitigen Querschnittsflächenabschnitte 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 Querschnittsflächenabschnitte 15a, 15b des Querschnittsprofils 12 des oberen Ruderblattabschnittes 10 tangential verlaufende Randbereiche 17, 17a aufweisen.The two propeller-side cross-sectional 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, wherein the two cross-sectional surface sections 15a, 15b of the cross-sectional profile 12 of the upper rudder blade section 10 facing away from the propeller 220 have tangentially extending edge regions 17 17a.

Der Querschnittsflächenabschnitt 14b mit dem Randbereich 16a mit stark gewölbtem Bogenverlauf 16'a ist steuerbordseitig liegend.The cross-sectional area section 14b with the edge region 16a with a strongly arched curve 16'a is located on the starboard side.

Der untere Ruderblattabschnitt 20 weist gemäß Fig. 5 ein spiegelverkehrtes Querschnittsprofil 22 auf. Dieses Querschnittsprofil 20 erstreckt sich von einer sich von der vorderen Nasenleiste 21 bis zur Endleiste 30 und zwar bis zu einer größten Profildicke 23 konisch sich erweiternden Querschnittsfläche. An diese vordere Querschnittsfläche 24 schließt sich eine zur Endleiste 30 erstreckende Querschnittsfläche 25 an, die sich zu der Endleiste 30 verjüngt. Die vordere Querschnittsfläche 24 wird von einer in Längsrichtung des Ruderblattes 100 verlaufende Mittellinie M2 in zwei Querschnittsflächenabschnitte 24a, 24b unterteilt, die unterschiedliche Größen aufweisen. Der größere Querschnittsflächenabschnitt 24b liegt dabei steuerbordseitig und der kleiner Querschnittsflächenabschnitt 24a ist der Backbordseite zugekehrt. Die rückwärtige Querschnittsfläche 25 wird ebenfalls von der Mittellinie M2 in zwei Querschnittsflächenabschnitte 25a, 25b aufgeteilt. Hier sind die beiden Querschnittsflächenabschnitte 25a, 25b gleich groß und weisen gleiche Formen auf.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 cross-sectional area conically widening from the front leading edge 21 to the end strip 30 and up to a maximum profile thickness 23. Adjoining this front cross-sectional area 24 is a cross-sectional area 25 extending to the end bar 30, which tapers to the end bar 30. The front cross-sectional area 24 is subdivided by a center line M2 extending in the longitudinal direction of the rudder blade 100 into two cross-sectional area sections 24a, 24b which have different sizes. The larger cross-sectional area section 24b is located on the starboard side and the small cross-sectional area section 24a faces the port side. The rear cross-sectional area 25 is also divided from the center line M2 into two cross-sectional area portions 25a, 25b. Here, the two cross-sectional surface portions 25a, 25b are the same size and have the same shapes.

Die beiden propellerseitigen Querschnittsflächenabschnitte 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 Querschnittsflächen 25a, 25b des Querschnittsprofils 22 des unteren Ruderblattabschnittes 20 tangential verlaufende Randbereiche 27, 27a aufweisen.The two propeller-side cross-sectional surface sections 24a, 24b of the cross-sectional profile 22 of the upper rudder blade section 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 cross-sectional surfaces 25a, 25b of the cross-sectional profile 22 of the lower Ruderblattabschnittes 20 tangentially extending edge regions 27, 27a have.

Der Querschnittsflächenabschnitt 24b mit dem Randbereich 26'a mit stark gewölbtem Bogenverlauf 26'a ist backbordseitig liegend.The cross-sectional surface portion 24b with the edge region 26'a with a strongly arched arc curve 26'a is located on the port side.

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 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.

Nach den Fig. 2A, 2B, 3, 4 und 5 sind die beiden Ruderblattabschnitte 10, 20 des Ruderblattes 100 mit ihren Querschnittsprofilen 12, 22 derart zueinander angeordnet, dass die Seitenwandabschnitte des Ruderblattes, die im Bereich der stark gekrümmten Bogenverläufe 16'a und 26'a der Querschnittsflächenabschnitte 14b und 24b steuerbordseitig und backbordseitig liegen, dann dem Querschnittsflächenabschnitt 14b des Querschnittsprofils 12 der Steuerbordseite und der Querschnittsflächenabschnitt 24b des Querschnittsprofils 22 der Backbordseite zugekehrt sind, so dass die Nasenleisten 11, 21 der beiden Ruderblattabschnitte 10, 20 backbordseitig und steuerbordseitig liegen.After the 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 arc curves 16'a and 26'a the cross-sectional surface portions 14b and 24b starboard side and port side, then the cross-sectional surface portion 14b of the cross-sectional profile 12 of the starboard side and the cross-sectional 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.

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 Querschnittsflächenabschnitte 14b und 24b backbordseitig und steuerbordseitig liegen, wobei dann der Querschnittsflächenabschnitt 14b des Querschnittsprofils 12 der Backbordseite und der Querschnittsflächenabschnitt 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 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 cross-sectional surface portions 14b and 24b are port side and starboard side, in which case the cross-sectional surface portion 14b of the port side cross-sectional profile 12 and the cross-sectional surface portion 24b of the starboard cross-sectional profile 22 are facing, so that the nose strips 11, 21 of the two rudder blade sections 10, 20 are starboard side and port side.

Bei der in Fig. 6 bis 8 dargestellten Ruderanordnung ist mit 110 ein Schiffskörper, mit 120 ein Ruderkokerlager, mit 100 ein Ruderblatt und mit 140 ein Ruderschaft bezeichnet. An das Ruderblatt 100 ist eine Flosse 135 angelenkt. Das Ruderblatt 100 weist eine vorzugsweise zylindrische Einziehung 155 zur Aufnahme des freien Endes des Ruderkokerlagers 120 auf.At the in Fig. 6 to 8 110 is a hull, 120 a rudder box bearing, 100 a rudder blade and 140 denotes a rudder stock. At the rudder blade 100 a fin 135 is hinged. The rudder blade 100 has a preferably cylindrical recess 155 for receiving the free end of the rudder trunk bearing 120.

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 Fig. 1 bis 3 gezeigten Ausführungsform ist nur ein einziges Innenlager 150 für die Lagerung des Ruderschaftes 140 in dem Ruderkokerlager 120 vorgesehen; ein weiteres Lager für das Ruderblatt 100 an der Außenwand des Ruderkokerlagers 120 entfällt. Zur Aufnahme des freien unteren Endes 120b des Ruderkokerlagers 120 ist das Ruderblatt 100 mit einer bei 160 angedeuteten Einziehung bzw. Ausnehmung versehen.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. In addition, the rudder trunk bearing 120 is sufficiently formed to the rudder blade 100 connected to the rudder end. 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. The free lower end of 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. At this in Fig. 1 to 3 shown embodiment, only 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. For receiving the free lower end 120b of the rudder trunk bearing 120, the rudder blade 100 is provided with a recess or recess indicated at 160.

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 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. With the free end of 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. In the end region 120b of the rudder trunk bearing 120, the inner bearing 150 is preferably provided.

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 100.The invention is not limited to the embodiments described above and illustrated in the drawing. Deviations in the arrangement of the bearing in the region 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 100th

Claims (1)

  1. Rudder assembly for high-speed ships with propellers which are subject to high loads, having a rudder composed of a rudder blade (100) and a propeller (220) which is assigned to the rudder and is arranged on a driveable propeller shaft (225), wherein the rudder blade (100) is composed of only two rudder blade sections (10, 20) lying one on top of the other, wherein the leading edges (11, 21), having a rounded profile and facing the propeller (220), of the two rudder blade sections (10, 20) are positioned in such a way that the one leading edge (11) is offset towards the port side (BB) or towards the starboard side (SB) and the other leading edge (21) is offset towards the starboard side (SB) or towards the port side (BB), wherein the two lateral wall faces of the rudder blade (100) converge in a trailing edge (30) facing away from the propeller (220), wherein the upper rudder blade section (10) has a cross-sectional profile (12) which
    a.) is formed by a cross-sectional face (14) which widens conically from the leading edge, facing the propeller (220), as far as a maximum profile thickness (13) and faces the propeller (220), and wherein
    a1.) the two cross-sectional face sections (14a; 14b) of the cross-sectional face (14), which are formed by a centre line (M1) running in the longitudinal direction of the rudder blade (100) and face the propeller (220), are of different sizes,
    a2.) of which cross-sectional face sections (14a; 14b) the larger cross-sectional face section (14a) is located on the port side,
    a3.) and the smaller cross-sectional face section (14b) is located on the starboard side,
    a4.) and which cross-sectional profile (12) is formed by a cross-sectional face (15) which adjoins the cross-sectional face (14) and tapers conically from the maximum profile thickness (13) to the trailing edge (30), wherein
    a5.) the two cross-sectional face sections (15a, 15b) of the cross-sectional face (15), which are formed by the centre line (M1) in the region of the cross-sectional profile (12) facing away from the propeller (220), are of identical construction,
    and wherein the lower rudder blade section (20) has a cross-sectional profile (22) which
    b.) is formed by a cross-sectional face (24), which widens conically from the leading edge (21) facing the propeller (220) to a maximum profile thickness (23) and faces the propeller (220), wherein
    b1.) the two cross-sectional face sections (24a, 24b) of the cross-sectional face (24), which are formed by a centre line (M2) which runs in the longitudinal direction of the rudder blade (100) and face the propeller (220), are of different sizes,
    b2.) of which cross-sectional face sections (24a, 24b) the larger cross-sectional face (24) is located on the starboard side, and
    b3.) the smaller cross-sectional face (24a) is located on the port side,
    b4.) and which cross-sectional profile (22) is formed by a cross-sectional face (25) which adjoins the cross-sectional face (24) and tapers conically from the maximum profile thickness (13) to the trailing edge (30), wherein
    b5.) the two cross-sectional face sections (25a, 25b) of the cross-sectional face (25), which are formed by the centre line (M2) in the region of the cross-sectional profile (22) facing away from the propeller (220), are of identical construction,
    with the result that the leading edge (11), facing the propeller (220), of the upper rudder blade section (10) is located on the port side with respect to the centre line (M1), and the leading edge (21) of the lower rudder blade section (20) is located on the starboard side with respect to the centre line (M2), and
    c.) wherein the propeller-side cross-sectional face sections (14a, 14b) of the cross-sectional profile (12) of the upper rudder blade section (10) have edge regions (16, 16a) with a flat arcuate profile (16') or a highly curved arcuate profile (16'a), wherein the two cross-sectional face sections (15a, 15b) of the cross-sectional profile (12) of the upper rudder blade section (10) which face away from the propeller (220) have tangentially extending edge regions (17, 17a), and the cross-sectional face section (14b) with the edge region (16a) with a highly curved arcuate profile (16'a) is located on the starboard side,
    c1.) wherein the propeller-side cross-sectional face sections (24a, 24b) of the cross-sectional profile (22) of the lower rudder blade section (20) have edge regions (26, 26a) with a flat arcuate profile (26') or a highly curved arcuate profile (26'a), wherein the two cross-sectional face sections (25a, 25b) of the cross-sectional profile (22) of the lower rudder blade section (20) which face away from the propeller (220) have tangentially extending edge regions (27, 27a), and the cross-sectional face section (24b) with the edge region (26a) with a highly curved arcuate profile (26'a) is located on the port side,
    characterized in that
    d.) the rudder arrangement also has a fin (135) which is coupled to the rudder blade (100) in the region of the trailing edge, and in that
    e.) the rudder arrangement also has a rudder spindle (140) and a rudder trunk bearing (120), wherein the rudder trunk bearing (120) is embodied as a cantilever beam with a central inner longitudinal bore (125) for receiving the rudder spindle (140) for the rudder blade (100), wherein the rudder trunk bearing (120) is embodied extending into the rudder blade (100) which is connected to the end of the rudder spindle, wherein in order to mount the rudder spindle (140) a single bearing (150) is arranged in the inner longitudinal bore (125) in the lower end region of the rudder trunk bearing (120), wherein the rudder spindle (140) extends in its end region (140b) with a section (145) out of the rudder trunk bearing (120), and is detachably connected by the free, lower end of this section (145) to the rudder blade (100), wherein the connection of the rudder spindle (140) to the rudder blade (100) is located above the propeller shaft centre (200), wherein in order to receive the lower free end (120b) of the rudder trunk bearing (120) a recess or drawn-in portion (160) is provided in the rudder blade (100), and wherein no mounting means is provided between the rudder blade (100) and the rudder trunk bearing (120).
EP08015619.3A 2004-04-23 2004-06-22 Rudder for ships Active EP2025593B1 (en)

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DE202004006453U DE202004006453U1 (en) 2004-04-23 2004-04-23 Oars for ships
EP04740144A EP1626897B1 (en) 2004-04-23 2004-06-22 Rudder for ships

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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
CN110723263B (en) * 2019-09-17 2020-07-14 广州文冲船舶修造有限公司 Ship rudder blade refitting process
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EP1857358A3 (en) 2007-12-05
ES2604756T3 (en) 2017-03-09
HK1083813A1 (en) 2006-07-14
EP1857358B1 (en) 2016-09-07
WO2005113332A1 (en) 2005-12-01
SI1626897T1 (en) 2009-08-31
TW200734244A (en) 2007-09-16
CN100351143C (en) 2007-11-28
DE202004006453U1 (en) 2004-11-11
TWI302894B (en) 2008-11-11
DE202004021474U1 (en) 2008-04-10
PT1626897E (en) 2009-06-16
JP4410656B2 (en) 2010-02-03
JP2007131298A (en) 2007-05-31
DE202004021223U1 (en) 2007-04-19
ATE431285T1 (en) 2009-05-15
ES2602562T3 (en) 2017-02-21
DE502004009484D1 (en) 2009-06-25
TW200535049A (en) 2005-11-01
JP2005306355A (en) 2005-11-04
EP1857358A2 (en) 2007-11-21
TWI295982B (en) 2008-04-21
DE202004021604U1 (en) 2009-05-28
EP2025593A2 (en) 2009-02-18
PL1626897T3 (en) 2009-10-30
EP1626897B1 (en) 2009-05-13
DK1626897T3 (en) 2009-07-13
DE202004021218U1 (en) 2007-04-19
KR20090029249A (en) 2009-03-20
DK1857358T3 (en) 2017-01-02
KR20050103137A (en) 2005-10-27
ES2323784T3 (en) 2009-07-24
CN101016082A (en) 2007-08-15
DE202004021495U1 (en) 2008-06-05
EP2025593A3 (en) 2009-04-01
JP4597146B2 (en) 2010-12-15
PL1857358T3 (en) 2017-02-28
CN101016082B (en) 2010-12-08
DE202004021222U1 (en) 2007-04-26
CN1689912A (en) 2005-11-02

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