EP0909703A2 - Steuerruder für Wasserfahrzeuge - Google Patents
Steuerruder für Wasserfahrzeuge Download PDFInfo
- Publication number
- EP0909703A2 EP0909703A2 EP98250358A EP98250358A EP0909703A2 EP 0909703 A2 EP0909703 A2 EP 0909703A2 EP 98250358 A EP98250358 A EP 98250358A EP 98250358 A EP98250358 A EP 98250358A EP 0909703 A2 EP0909703 A2 EP 0909703A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rudder
- blade
- outlet openings
- medium
- rudder blade
- 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
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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
Definitions
- the invention relates to rudders for watercraft according to the preamble of claim 1.
- Rudders for watercraft are usually one vertical axis, which the rudder with the wheelhouse connecting and guided by a hull-proof coker Rudder shaft, swiveling to each side through the inflow of the aileron with a streamlined profile due to the screw or travel current of the watercraft a rudder pressure is created, which turns into an against the Directional resistance component and at a deflection of the rudder from the middle or Normal position in a direction transverse to the direction of travel control or effecting the control of the watercraft Split rudder force.
- the rudder force through the rudder pressure side facing the inflow and applied the rudder suction side facing away from the inflow, the rudder pressure side about a third of the rudder transverse force and the rudder suction side about two thirds of the Rudder force.
- a vortex-free flow onto the rudder only occurs then when the inflow is aligned with the longitudinal axis of the profile is or runs perpendicular to the rudder stock or forms a relatively small angle with it.
- the flow is interrupted on the rudder suction side just behind the profile head of the streamlined rudder and there is a strong on the rudder suction side Vortex formation.
- This has a significant reduction the rudder transverse force used to control the watercraft and a significant increase in drag of the rudder. For this reason such rudders only work up to a deflection from approx. 25 ° to 30 ° rudder position satisfactory.
- GB 2 021 062 A is designed as a so-called rotor rudder High-performance rudder known from a main rudder blade and a hinged fin rudder blade exists, which deflects independently of the main rudder blade can be.
- a curved rudder head is on the front edge of the rudder is cylindrical or cylindrical Rotor arranged on the suction side in the direction of Inflow is driven all round.
- the object of the present invention is to provide a rudder for watercraft without additional attachments or moving parts outside the rudder blade both the resistance component directed against the direction of travel to reduce the rudder as well as a rudder deflection maintain the effectiveness of the rudder suction side.
- the solution according to the invention creates one designed as a thruster High-performance rudder for watercraft, in which a suction side tear even with large rudder positions prevented and thus built up a maximum rowing power and its resistance component directed against the direction of travel both in the neutral middle position as is also minimal with all rudder deflections. This effect without additional attachments or moving parts achieved outside the rudder blade, so that the strength values of the rudder are not affected and no complex constructions are required.
- the effect of the thruster is comparable to that Effect of a pipe bend that affects the rudder blade incoming flow deflects on both sides and thus prevents a suction side tear in the event of a rudder deflection or with normal rudder surface resistance belittles.
- An advantageous embodiment of the invention Solution is characterized in that the outlet openings on the front third in the direction of travel of the watercraft of the rudder blade are arranged. Because the suction side tear occurs with growing rudder positions on this side, is an introduction of energy into this area of the rudder blade most effective on the respective rudder suction side, to achieve a large total rudder force and to continuously flow around the rudder suction side.
- the arrangement of further outlet openings distributed over the entire side surfaces of the rudder blade serves to prevent cavitation by blowing out the endangered Reduce or prevent spots on the rudder blade.
- this can also improve propulsion can be achieved by, for example, both sides of the rudder blade is blown out and thus Steam bubbles can be avoided.
- outlet openings in Direction of travel of the watercraft one behind the other and / or staggered with each other the outlet openings at least over part of the height of the rudder blade can be distributed.
- the outlet openings preferably consist of vertical slots extending to the direction of travel of the watercraft.
- the exit velocity of the medium be changed to the different conditions, such as rudder angle, speed, rudder blade profile and the like to take into account.
- the exit velocity of the medium the flow rate or the medium pressure can be varied.
- the outlet speed of the medium can both side surfaces of the rudder blade preferably independently can be controlled from each other.
- the The medium exits via the height of the rudder blade controllable.
- the exit of the medium on both side surfaces of the rudder blade in Asymmetrical with respect to the vertical axis of the rudder blade controllable taking into account the propeller twist the asymmetrical blowing out to a further improvement propulsion and avoidance or reduction of cavitation symptoms.
- the conveying device for the medium can optionally in Rudder blade or be arranged in the watercraft, whereby with an arrangement of the conveyor in the watercraft the medium is routed via a line, through which the Rudder blade connecting to the hull of the watercraft Rudder and / or for the management of the rudder is led through the koker serving the ship wall.
- the conveyor is arranged in the rudder blade is preferably the suction opening for the liquid medium arranged in the rudder blade itself, especially on the leading edge of the rudder blade at the level of the propeller shaft.
- Another advantageous embodiment of the invention Solution is characterized in that the leading edge of the Rudder blade consists of an anchor head that with the through the rudder body bounded by the side surfaces of the rudder blade is connectable and that the outlet openings between the End faces of the side surfaces and the side edges of the anchor head are trained.
- the anchor head to the rudder body can be the size of the Outlet openings in a simple and reproducible manner can be set.
- the rudder blade consists of a profiled rudder body and a domed rudder head and from the rudder head to one Trailing edge of the rudder blade converging side surfaces, so the outlet openings are preferred in the the area of the side surfaces adjacent to the rudder head.
- FIG 2 shows a side view and Figure 3 in one Front view in a schematic perspective view a rudder blade 1 of a thruster according to the invention.
- the Rudder blade 1 consists of a profile body with a Leading edge 11, which is profiled and spaced apart Side surfaces 12, 13 merges, which in turn to the rear edge 14 of the rudder blade 1 converge.
- the rudder blade 1 is connected to a rudder post 2, which by one, not shown, with the hull of the watercraft firmly connected koker is and in one Wheelhouse ends that with appropriate control facilities is provided for changing the rudder position.
- outlet openings 3 intended for a liquid and / or gaseous medium. These outlet openings 3 are preferably designed so that the medium is in the direction of travel, that is, from the leading edge 11 directed towards the rear edge 14, from the outlet openings 3 flows out.
- the outlet openings 3 can be designed differently as well as arranged in different configurations. For example, one of the top edge 15 of the rudder blade 1 to its lower edge 16 continuous gap in both side surfaces 12, 13 of the rudder blade 1 in the same Distance from the leading edge 11 possible.
- Another Embodiment can consist in that according to FIG Exit gaps in each side surface 12, 13 in the top and the lower half of the rudder and each one Medium line 41, 42 connected to a conveyor 5 are.
- the conveyor preferably consisting of a pump 5 is via a medium supply line 40 with a Inlet 4 connected through which the liquid in this case Medium sucked in and via the medium line 41, 42 to the Exit openings 3 is conveyed where it with a predetermined Exit speed from the exit openings 3 exit.
- the power supply of the conveyor 5 takes place via a cable 51, preferably by a Bore 20 in rudder post 2 or through the koker is.
- the distance of the outlet openings 3 from the leading edge 11 of the rudder blade 1 varies depending on the thrust load of the propeller. With this in mind, too several outlet openings at different distances arranged to the leading edge 11 of the rudder blade 1 and each via separate pipes with the conveyor 5 get connected.
- throttle valves in the individual medium lines 41, 42 can the pressure conditions and thus the exit speed of the liquid and / or gaseous medium in the different Outlet openings 31 to 34 fixed or variable become.
- Figure 4 shows a schematic perspective side view an alternative arrangement of the thruster according to the invention, where the conveyor is not in rudder blade 1, but outside the rudder blade, for example in Rudder engine room is arranged.
- the supply of the gaseous or liquid medium takes place, for example, via a Bore 20 in the rudder shaft 2 to a medium line 43, the is divided into a plurality of medium lines 44, 45 which lead to the Outlet openings 31 to 34 on the two side surfaces 12, 13 of the rudder blade 1 lead and, for example, in groups in outlet openings 31 to 34 in the upper and lower rudder half are summarized.
- Figure 4 shows the both to the outlet opening groups 31, 33 in the rudder surface 12 arranged above and below the rudder blade center Outlet openings 31 and 33 leading medium lines 44, 45.
- the air supply can in the arrangement according to Figure 4 from outside the rudder blade, for example from the Rowing machine room.
- the supply of the necessary Air to the outlet openings can also through the Rudder shaft 2 or the koker to the medium lines 44, 45 respectively.
- FIG. 5 shows in a cross section through the front part of a rudder blade 1 Anchor or rudder head 10, on which the rudder side surfaces Connect 12, 13. In the transition area from the rudder head 10 to the side surfaces 12, 13 become outlet openings 35, 36 formed by opening cylinders 61, 62 in via a connecting device 6 at a predetermined distance to be arranged to each other.
- the connecting device 6 consists of a bulkhead or one or more spacers that the setting of the exit gaps 35, 36 in both side surfaces 12, 13 of the rudder blade 1 serve.
- FIG. 6 shows a variant in which an adjusting device 7 the distance between the cylinders 61, 62 to each other through a variable-length connecting device 60 can be set. That way the cross section of the outlet openings 35, 36 varies and be adapted to the respective operating conditions. Depending on Rudder deflection can be on the port or starboard side Outlet openings 35, 36 are opened or closed and in the normal position of the rudder blade 1, both outlet openings can 35, 36 are opened to improve propulsion and to help prevent cavitation.
- Figure 7 shows a variant in which the exit column 35, 36 and the two side surfaces 12, 13 of the rudder blade 1 fixed using a special setting device can be.
- Exit cylinders 61, 62 are provided, which have a spacer 60 are connected.
- An anchor head 100 has a bore 101 for receiving a bolt 8 on, which can be connected to a bolt receptacle 102.
- Gap S between the anchor head 100 and the bolt receptacle 102 can be varied by means of the bolt 8 so that a different gap size for the exit gap 35, 36 is adjustable.
- the opening 101 in the anchor head 100 can after the fixed setting of the gap S, that is after installation of the anchor head are filled, so that an uninterrupted, smooth leading edge of the rudder blade 1 is given.
- Figure 8 illustrates in a diagram that with the invention Solution compared to conventional rowing or Benefits of high-performance rowing.
- FIG. 8 shows the course of the coefficients c l of the rudder transverse force (LIFT) and of the drag coefficient c d of the rudder longitudinal force (DRAG) as a function of the rudder deflection for different rudder types.
- c l and c d are the coefficients of the rudder lateral force and rudder longitudinal force, rho the rudder height, v the inflow velocity
- AR is the effective rudder area and the product v 2 * AR represents the dynamic pressure.
- the coefficients c l and c d shown for a normal rudder NR, a high-performance fin rudder FR, a rotor rudder RR and a jet rudder SRA illustrate the effectiveness of the solution according to the invention. While the rudder force coefficient c l for a normal rudder NR and a high-performance fin rudder FR reaches a maximum value of 1.0 or 1.6 with a rudder deflection of 25 ° or 28 ° and then drops exponentially due to the suction side tear, the rudder force coefficient c l shows for a rotor rudder RR an increase up to a maximum of 1.6 with a rudder deflection of approx. 50 ° and then a linear decrease.
- the rudder lateral force coefficient c l increases with a thruster SRA to a first maximum value of approx. 2.0 with a rudder deflection of approx. 30 ° with a further increase up to a second maximum of approx. 2.2 with a rudder deflection of approx. 45 ° to then drop linearly to a value of 1.0 with a rudder deflection of 70 °.
- This graph shows that in the main working area of a rudder with a rudder angle of 45 °, the thruster SRA generates a maximum lateral force component that is well above the maximum values of the conventional rudders.
- the rudder longitudinal force coefficient c d is entered for a normal rudder NR and a rotor rudder RR, the rudder longitudinal force coefficient increasing with increasing rudder position.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Toys (AREA)
Abstract
Description
- Figur 1 -
- eine schematische Darstellung mehrerer konventioneller Steuerruder sowie des erfindungsgemäßen Strahlruders bei unterschiedlichen Ruderlagen sowie die dazugehörigen Strömungsverhältnisse und Ruderquerkräfte;
- Figur 2 -
- eine schematisch-perspektivische Seitenansicht eines Steuerruders mit Austrittsöffnungen für ein flüssiges Medium;
- Figur 3 -
- eine schematisch-perspektivische Frontansicht des Steuerruders gemäß Figur 2;
- Figur 4 -
- eine schematisch-perspektivische Seitenansicht eines Steuerruders mit Austrittsöffnungen für ein gasförmiges Medium;
- Figur 5 -
- einen Querschnitt durch den Ruderkopf gemäß den Figuren 2 bis 4 mit fest einstellbaren Austrittsöffnungen;
- Figur 6 -
- einen Querschnitt durch den Ruderkopf gemäß Figur 5 mit verstellbaren Austrittsöffnungen;
- Figur 7 -
- einen Querschnitt durch den vorderen Teil eines Steuerruders mit einem Ankerkopf zur Einstellung der Größe der Austrittsöffnungen und
- Figur 8 -
- ein Diagramm mit dem Verlauf der Ruderquerkraft und des Ruderwiderstandes in Abhängigkeit von der Ruderlage bei einem Normalruder, einem Hochleistungs-Flossenruder, einem Rotorruder und einem erfindungsgemäßen Strahlruder.
Claims (22)
- Steuerruder für Wasserfahrzeuge mit einem Ruderblatt, das eine Vorkante oder Ruderkopf und daran anschließende, voneinander beabstandete Seitenflächen aufweist,
dadurch gekennzeichnet,
daß in den Seitenflächen (12, 13) des Ruderblattes (1) Austrittsöffnungen (3; 31 bis 36) für ein flüssiges und/oder gasförmiges Medium angeordnet sind. - Steuerruder nach Anspruch 1, dadurch gekennzeichnet, daß die Austrittsöffnungen (3; 31 bis 36) am in Fahrtrichtung des Wasserfahrzeugs vorderen Drittel des Ruderblattes (1) angeordnet sind.
- Steuerruder nach Anspruch 2, dadurch gekennzeichnet, daß weitere Austrittsöffnungen (3; 31 bis 36) über die Seitenflächen (12, 13) des Ruderblattes (1) verteilt angeordnet sind.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß mehrere Austrittsöffnungen (3; 31 bis 36) in Fahrtrichtung des Wasserfahrzeugs hintereinander und/oder versetzt zueinander angeordnet sind.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß mehrere Austrittsöffnungen (3; 31 bis 36) zumindest über einen Teil der Höhe des Ruderblattes (1) verteilt angeordnet sind.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Austrittsöffnungen (3; 31 bis 36) aus senkrecht zur Fahrtrichtung des Wasserfahrzeugs verlaufenden Schlitzen bestehen.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Querschnitt der Austrittsöffnungen (3; 31 bis 36) veränderbar ist.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Austrittsgeschwindigkeit des Mediums veränderbar ist.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Querschnitte der Austrittsöffnungen (3; 31 bis 36) und/oder die Austrittsgeschwindigkeit des Mediums auf beiden Seitenflächen (12, 13) des Ruderblattes (1) unabhängig voneinander steuerbar sind.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Austritt des Mediums über die Höhe des Ruderblattes (1) unterschiedlich steuerbar ist.
- Steuerruder nach Anspruch 10, dadurch gekennzeichnet, daß der Austritt des Mediums an beiden Seitenflächen (12, 13) des Ruderblattes (1) in bezug auf die Hochachse des Ruderblattes (1) asymmetrisch steuerbar ist.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Austrittsgeschwindigkeit des Mediums mittels einer Fördereinrichtung (5) veränderbar ist.
- Steuerruder nach Anspruch 12, dadurch gekennzeichnet, daß die Fördereinrichtung (5) im Ruderblatt (1) angeordnet ist.
- Steuerruder nach Anspruch 12, dadurch gekennzeichnet, daß die Fördereinrichtung (5) im Wasserfahrzeug angeordnet ist und das Medium über eine Leitung (20) geführt ist, die über den das Ruderblatt (1) mit dem Rumpf des Wasserfahrzeugs verbindenden Ruderschaft (2) und/oder Koker geführt ist.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Ansaugöffnung (4) für ein flüssiges Medium im Ruderblatt (1) angeordnet ist.
- Steuerruder nach Anspruch 15, dadurch gekennzeichnet, daß die Ansaugöffnung (4) an der Vorkante (11) des Ruderblattes (1), vorzugsweise in Höhe der Propellerwelle angeordnet ist.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Ansaugöffnung für ein gasförmiges Medium im oder am Rumpf des Wasserfahrzeugs angeordnet ist.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Vorkante (11) des Ruderblattes (1) aus einem Ankerkopf (10, 100) besteht, der mit dem durch die Seitenflächen (12, 13) des Ruderblattes (1) begrenzten Ruderkörper verbindbar ist und daß die Austrittsöffnungen (3; 31 bis 36) zwischen den Stirnseiten der Seitenflächen (12, 13) und den Seitenkanten des Ankerkopfes (10, 100) ausgebildet sind.
- Steuerruder nach Anspruch 18, dadurch gekennzeichnet, daß die Größe der Austrittsöffnungen (3; 31 bis 36) durch Verändern des Abstandes des Ankerkopfes (10, 100) zum Ruderkörper einstellbar ist.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Ruderblatt (1) aus einem profilierten Ruderkörper und einem gewölbten Ruderkopf sowie vom Ruderkopf zu einer Hinterkante (14) des Ruderblattes (1) zusammenlaufenden Seitenflächen (12, 13) besteht und daß die Austrittsöffnungen (3; 31 bis 36) in dem an dem Ruderkopf angrenzenden Bereich der Seitenflächen (12, 13) vorgesehen sind.
- Steuerruder nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Steuerruder aus einem Hochleistungs-Flossenruder mit einem an der Hinterkante eines Hauptruderblattes angelenkten Flossenruderblatt besteht und daß im in Fahrtrichtung des Wasserfahrzeugs vorderen Drittel des Hauptruderblattes Austrittsöffnungen für ein flüssiges und/oder gasförmiges Medium angeordnet sind.
- Steuerruder nach Anspruch 21, dadurch gekennzeichnet, daß in dem an die Anlenkung des Flossenruderblattes am Hauptruderblatt anschließenden vorderen Drittel des Flossenruderblattes Austrittsöffnungen für ein flüssiges und/oder gasförmiges Medium angeordnet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19746711 | 1997-10-16 | ||
DE19746711A DE19746711A1 (de) | 1997-10-16 | 1997-10-16 | Steuerruder für Wasserfahrzeuge |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0909703A2 true EP0909703A2 (de) | 1999-04-21 |
EP0909703A3 EP0909703A3 (de) | 2001-08-29 |
EP0909703B1 EP0909703B1 (de) | 2003-06-04 |
Family
ID=7846315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98250358A Expired - Lifetime EP0909703B1 (de) | 1997-10-16 | 1998-10-13 | Steuerruder für Wasserfahrzeuge |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0909703B1 (de) |
DE (2) | DE19746711A1 (de) |
NO (1) | NO984812L (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003047964A1 (de) * | 2001-12-07 | 2003-06-12 | Aker Warnow Werft Gmbh | Verfahren und vorrichtung zum reduzieren von materialschäden an schiffsrudern |
CN105366024A (zh) * | 2015-12-10 | 2016-03-02 | 重庆交通大学 | 一种减阻节能型舵叶 |
US10422267B2 (en) * | 2016-11-16 | 2019-09-24 | Benjamin Quinby | Marine rudder exhaust system |
CN116252939A (zh) * | 2023-02-28 | 2023-06-13 | 中国船舶科学研究中心 | 一种适用于x型操纵面水下航行器的主动流动控制方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19960577A1 (de) * | 1999-12-15 | 2001-06-21 | Schottel Gmbh & Co Kg | Vorrichtung zur Veränderung der Fahrtrichtung eines Wasserfahrzeugs |
DE202010004191U1 (de) * | 2010-03-23 | 2010-07-01 | Van Der Velden Barkemeyer Gmbh | Ruder für Schiffe |
KR101259460B1 (ko) * | 2010-11-17 | 2013-04-30 | 삼성중공업 주식회사 | 선박의 타력증대장치 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE665716C (de) | 1935-07-17 | 1938-10-01 | Fried Krupp Germaniawerft Akt | Stromlinienfoermiges Balanceruder |
DE1506567A1 (de) | 1967-04-27 | 1973-08-23 | Messerschmitt Boelkow Blohm | Steuereinrichtung fuer pendelruder |
GB2021062A (en) | 1978-05-10 | 1979-11-28 | Jastram Werke | Rudder for aquate craft |
DE3010431A1 (de) | 1980-03-19 | 1981-09-24 | Johann B. Dr.-Ing. 8000 München Endres | Einrichtung zur verringerung des oberflaechenreibungswiderstandes bei stroemungskoerpern |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2145463A (en) * | 1936-09-08 | 1939-01-31 | Jacob G Spinanger | Air film lubrication of marine vessels |
US2961987A (en) * | 1958-08-13 | 1960-11-29 | Interessengemeinschaft Mello R | Rudders for ships |
US3915106A (en) * | 1973-07-02 | 1975-10-28 | Supramar Ag | Hydrofoil with lift control by airfreed for watercraft |
SE8104074L (sv) * | 1981-06-30 | 1982-12-31 | Bengt Akerblom | Stromningsmodifierande element, serskilt roder |
AU625994B2 (en) * | 1988-10-20 | 1992-07-23 | J.P. Van Gelder Marine Pty Limited | Improved cross-sectional design of a foil |
-
1997
- 1997-10-16 DE DE19746711A patent/DE19746711A1/de not_active Withdrawn
-
1998
- 1998-10-13 EP EP98250358A patent/EP0909703B1/de not_active Expired - Lifetime
- 1998-10-13 DE DE59808597T patent/DE59808597D1/de not_active Expired - Lifetime
- 1998-10-15 NO NO984812A patent/NO984812L/no not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE665716C (de) | 1935-07-17 | 1938-10-01 | Fried Krupp Germaniawerft Akt | Stromlinienfoermiges Balanceruder |
DE1506567A1 (de) | 1967-04-27 | 1973-08-23 | Messerschmitt Boelkow Blohm | Steuereinrichtung fuer pendelruder |
GB2021062A (en) | 1978-05-10 | 1979-11-28 | Jastram Werke | Rudder for aquate craft |
DE3010431A1 (de) | 1980-03-19 | 1981-09-24 | Johann B. Dr.-Ing. 8000 München Endres | Einrichtung zur verringerung des oberflaechenreibungswiderstandes bei stroemungskoerpern |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003047964A1 (de) * | 2001-12-07 | 2003-06-12 | Aker Warnow Werft Gmbh | Verfahren und vorrichtung zum reduzieren von materialschäden an schiffsrudern |
CN105366024A (zh) * | 2015-12-10 | 2016-03-02 | 重庆交通大学 | 一种减阻节能型舵叶 |
US10422267B2 (en) * | 2016-11-16 | 2019-09-24 | Benjamin Quinby | Marine rudder exhaust system |
CN116252939A (zh) * | 2023-02-28 | 2023-06-13 | 中国船舶科学研究中心 | 一种适用于x型操纵面水下航行器的主动流动控制方法 |
CN116252939B (zh) * | 2023-02-28 | 2024-02-02 | 中国船舶科学研究中心 | 一种适用于x型操纵面水下航行器的主动流动控制方法 |
Also Published As
Publication number | Publication date |
---|---|
DE19746711A1 (de) | 1999-04-22 |
NO984812D0 (no) | 1998-10-15 |
EP0909703A3 (de) | 2001-08-29 |
EP0909703B1 (de) | 2003-06-04 |
NO984812L (no) | 1999-04-19 |
DE59808597D1 (de) | 2003-07-10 |
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