EP2077961B1 - Tordiertes schiffsruder und damit ausgerüstetes schiff - Google Patents

Tordiertes schiffsruder und damit ausgerüstetes schiff Download PDF

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Publication number
EP2077961B1
EP2077961B1 EP07846493.0A EP07846493A EP2077961B1 EP 2077961 B1 EP2077961 B1 EP 2077961B1 EP 07846493 A EP07846493 A EP 07846493A EP 2077961 B1 EP2077961 B1 EP 2077961B1
Authority
EP
European Patent Office
Prior art keywords
ship
rudder
degrees
angle
hull
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.)
Active
Application number
EP07846493.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2077961A2 (de
Inventor
Rolf Rohden
Dirk Holtkamp
Aloys Wobben
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wobben Properties GmbH
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Wobben Properties GmbH
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Filing date
Publication date
Application filed by Wobben Properties GmbH filed Critical Wobben Properties GmbH
Publication of EP2077961A2 publication Critical patent/EP2077961A2/de
Application granted granted Critical
Publication of EP2077961B1 publication Critical patent/EP2077961B1/de
Active legal-status Critical Current
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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
    • 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
    • B63H2025/066—Arrangements of two or more rudders; Steering gear therefor
    • 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 present invention relates to a rudder blade for a ship and a ship with at least one rudder blade according to the invention.
  • a conventionally designed rudder so simplified a flat plate, which is laterally offset from the keel line mounted in the rear of the ship and aligned in the zero degree position exactly parallel to the keel line, so would flow obliquely, thus causing a flow resistance.
  • This flow resistance means higher fuel consumption and thus higher environmental impact or with the same fuel consumption and the same engine performance low speed and thus extended travel time and thus turn higher fuel consumption and higher environmental impact.
  • Object of the present invention is to provide a particularly streamlined rudder blade for attachment in the region of the stern of a ship laterally next to the keel line.
  • This object is achieved by two arranged to control the ship, twisted rudder blades, which are provided laterally offset to the keel line.
  • the twisting of the rudder blades is adapted to the course of the flow of the water in the region of the respective rudder blade caused by the geometry of the hull, which results from the ship's passage through the water at a rudder angle of zero degrees.
  • the advantages of these rudders invention are a higher efficiency of the rudder blades, which leads to smaller rudder blades, as well as an improved flow of the propeller (if it is present).
  • This effect according to the invention is achieved when at a rudder angle of zero degrees, so set an exact straight ahead rudder the angle of attack at the rudder is also exactly zero degrees and if the rudder blades in the direction of travel of the ship is not in operation befindaji propeller.
  • the rudder blade is twisted by about 10 degrees in its upper (near-the-hull) area, while it is twisted by about 2 degrees in its lower (fuselage) area.
  • These values were determined on the concrete example of a given hull form first by simulation and then empirically. Since, as mentioned above, there is a dependence of twisting on the hull geometry, a torsion of up to 20 degrees may not be unrealistic in the fuselage (upper) region of the rudder blade. In the lower (fuselage) area areas of up to 5 degrees are likely to be considered.
  • a ship with at least two rudder blades is proposed, which are provided laterally offset from the keel line, the twisting of the blade being adapted to the course of the flow of the water in the region of the respective rudder blade caused by the geometry of the hull.
  • the concrete course of the flow is determined primarily by the geometry of the hull, as far as it lies in the water.
  • the rudder blades are adapted to this flow, if the rudder blades in the direction of travel of the ship is not preceded by a propeller in operation.
  • the rudder blade is not preceded by a propeller.
  • a propeller should be upstream, this is not in operation. This means that it is not powered, but is idle, for example.
  • twisting the rudder blade is meant a rotation of the rudder blade about a longitudinal axis of the rudder blade.
  • the specified torsion angle is given as the angle of the rudder blade at the respective height relative to the keel line and can also be referred to as the angle of attack.
  • the rudder blades have an angle of attack to the keel line, so that the respective rudder blade points in the flow direction when the ship is moving forward to the keel line. Due to the hull shape tapering backwards towards the stern and when the rudders are arranged as usual in the stern area of the ship, the flow of the water - relative to the ship - also runs backwards when the ship makes its way through the water. This effect contributes to this embodiment. Accordingly, when driving straight, the rudder blades to the keel line and thus to the ship's center.
  • the angle of attack to the keel line of the respective rudder blade decreases with increasing distance from the hull.
  • the rudder blade is therefore so twisted that near the fuselage a larger angle of attack is present, which then decreases with increasing distance from the hull, ie downwards.
  • the angle of attack or torsion angle is between 2 degrees and 20 degrees.
  • the larger value is usually near the ship's hull and the smaller one at the bottom of the rudder blade.
  • the angle from the hull may drop from 20 degrees at the fuselage to 5 degrees at the bottom, or in another example from 10 degrees to 2 degrees.
  • the angle of attack or torsion angle in the vicinity of the fuselage is 10 degrees to 20 degrees and in the fuselage range 2 degrees to 5 degrees.
  • two rudders are arranged symmetrically on both sides of the keel line.
  • a rudder in the direction of travel is right and thus on the starboard side of the ship and a counterpart to it is located on the opposite side of the keel line, but otherwise in the same place.
  • Such two rudders are preferably also symmetrical to each other, namely designed mirror-symmetrical.
  • At least one Magnus rotor is provided as drive for the ship.
  • a Magnus rotor generates a propulsion for the ship by utilizing the Magnus effect.
  • a fast rotating, vertical cylinder is used, which is flowed around by the wind.
  • the wind direction and direction of rotation results in a propulsion for the ship.
  • no propulsion movement takes place and the flow of water in the hull area essentially depends on the ship's passage through the water and the airfoil is determined by the geometry of the hull. Accordingly, the rudder blades are designed. Further advantageous effects may also arise when other types of drives are used, which do not or not significantly interfere with the flow of water in the trunk area.
  • a propeller may, for example, be provided as an auxiliary drive.
  • the design of the rudder blade or the rudder blades is preferably carried out when the propeller is not driven, e.g. is idle.
  • FIG. 4 FIG. 3 .
  • FIG. 2 FIG. 1 ,
  • the stern section of the ship is represented by two rudder blades, which are arranged on either side laterally next to the keel line of the ship.
  • One of the rudder blades is arranged on the left, ie on the port side of the keel line, while the second rudder blade is arranged on the right, that is to say on the starboard side of the keel line.
  • the ship is a pure sailing ship, as the present drawing might suggest, or whether there is at least one propeller with another rudder blade (eg, exactly in the keel line) is completely irrelevant to the present invention, but not excluded.
  • FIG. 3 shows another rear view of the ship, but from a slightly different perspective.
  • the port side (left) rudder blade is twisted to the right, ie to the keel line, while the starboard side (right) rudder blade is twisted to the left, ie also to the keel line.
  • the angle of attack or the torsion angle of each rudder blade decreases with increasing distance from the fuselage. In the concrete embodiment, however, it does not reach zero degrees at the lower (fuselage-facing) end of the rudder blade, but still has an angle of 2 degrees.
  • FIG. 2 shows only the two rudder blades without the (over) hull. In this drawing the twisting is again clearly visible. The look in this drawing is again directed from the back to the stern of the ship.
  • FIG. 1 also shows only the rudder blades according to the invention, but in a view from below, so that between these rudder blades of the ship keel would be seen.
  • the distortion at the trailing edge of the rudder blades can be seen particularly clearly.

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)
  • Prevention Of Electric Corrosion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Electric Cable Installation (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Wind Motors (AREA)
  • Traffic Control Systems (AREA)
EP07846493.0A 2006-10-06 2007-10-08 Tordiertes schiffsruder und damit ausgerüstetes schiff Active EP2077961B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006047755A DE102006047755A1 (de) 2006-10-06 2006-10-06 Seitliches Schiffsruder
PCT/EP2007/008704 WO2008043504A2 (de) 2006-10-06 2007-10-08 Tordiertes schiffsruder und damit ausgerüstetes schiff

Publications (2)

Publication Number Publication Date
EP2077961A2 EP2077961A2 (de) 2009-07-15
EP2077961B1 true EP2077961B1 (de) 2017-08-02

Family

ID=38996207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07846493.0A Active EP2077961B1 (de) 2006-10-06 2007-10-08 Tordiertes schiffsruder und damit ausgerüstetes schiff

Country Status (18)

Country Link
US (1) US8215255B2 (ko)
EP (1) EP2077961B1 (ko)
JP (2) JP5404403B2 (ko)
KR (1) KR101248290B1 (ko)
CN (1) CN101522515B (ko)
AU (1) AU2007306675B2 (ko)
BR (1) BRPI0718193B1 (ko)
CA (1) CA2667074C (ko)
DE (1) DE102006047755A1 (ko)
DK (1) DK2077961T3 (ko)
ES (1) ES2637788T3 (ko)
HK (1) HK1134667A1 (ko)
MX (1) MX2009003514A (ko)
NO (1) NO340384B1 (ko)
NZ (1) NZ575935A (ko)
PT (1) PT2077961T (ko)
WO (1) WO2008043504A2 (ko)
ZA (1) ZA200902060B (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101323795B1 (ko) * 2011-11-15 2013-10-31 삼성중공업 주식회사 선박
FI3626602T3 (fi) * 2014-01-31 2024-04-02 K Seven Kk Ohjauslaite ja menetelmä ohjauslaitetta varten
US10118696B1 (en) 2016-03-31 2018-11-06 Steven M. Hoffberg Steerable rotating projectile
EP3464057B1 (en) * 2016-05-25 2021-10-27 Volvo Penta Corporation Method and control apparatus for operating a marine vessel
JP7107668B2 (ja) 2017-11-29 2022-07-27 三菱造船株式会社 舵
US11712637B1 (en) 2018-03-23 2023-08-01 Steven M. Hoffberg Steerable disk or ball

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398895A (en) * 1981-05-14 1983-08-16 Asker Gunnar C F Wind propulsion devices

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB174021A (en) 1920-07-07 1922-01-09 Anton Flettner Improved steering device for ships and the like
US1714042A (en) * 1926-04-15 1929-05-21 Oertz Max Two-part rudder for ships
US1744138A (en) * 1927-12-02 1930-01-21 Oertz Max Arrangement of cutwater rudders for ships
US1844303A (en) * 1928-01-27 1932-02-09 Wagner Rudolf Rudder
US1973783A (en) * 1932-07-30 1934-09-18 Theodore M Thorsen Stream line stern-post block and rudder assembly
US2331706A (en) * 1941-09-27 1943-10-12 Livingston John Rudder
US2392165A (en) * 1943-07-09 1946-01-01 Livingston John Rudder
US2705469A (en) * 1951-10-30 1955-04-05 H C Stulcken Sohn Propulsion arrangement for ships
NL6410681A (ko) 1964-09-14 1966-03-15
GB1131611A (en) * 1964-10-27 1968-10-23 Hydroconic Ltd Improvements in or relating to the steering of vessels fitted with propulsion nozzles
GB1261998A (en) * 1969-10-13 1972-02-02 Hydroconic Ltd Improvements in or relating to ducted propeller systems for marine vessels
GB2072112B (en) * 1980-03-20 1983-08-24 Austin K A Rotors utilising the magnus effect
JPS577798A (en) * 1980-06-16 1982-01-14 Mitsui Eng & Shipbuild Co Ltd Reaction rudder
JPS59137294A (ja) * 1983-01-24 1984-08-07 Mitsubishi Heavy Ind Ltd 舶用屈曲舵
US5415122A (en) 1993-10-13 1995-05-16 The United States Of America As Represented By The Secretary Of The Navy Twisted rudder for a vessel
US5456200A (en) * 1993-10-13 1995-10-10 The United States Of America As Represented By The Secretary Of The Navy Rudder for reduced cavitation
DE19844353A1 (de) * 1998-09-28 2000-03-30 Herbert Schneekluth Steuerruder für Schiffe
NL1012716C2 (nl) * 1999-07-27 2001-01-30 Hubertus Adriaan Pothoven Zeilboot.
DE10103137A1 (de) 2001-01-24 2002-07-25 Thyssen Nordseewerke Gmbh Vorrichtung zur Steuerung eines Wasserfahrzeuges
WO2003068595A1 (en) * 2001-03-09 2003-08-21 Power Vent Technologies, Inc. Method and apparatus for reverse steering of single shaft marine propulsion system
DE202004006453U1 (de) * 2004-04-23 2004-11-11 Becker Marine Systems Gmbh & Co. Kg Ruder für Schiffe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398895A (en) * 1981-05-14 1983-08-16 Asker Gunnar C F Wind propulsion devices

Also Published As

Publication number Publication date
WO2008043504A3 (de) 2009-05-07
KR20090078340A (ko) 2009-07-17
CN101522515A (zh) 2009-09-02
CN101522515B (zh) 2013-02-27
CA2667074A1 (en) 2008-04-17
KR101248290B1 (ko) 2013-03-27
MX2009003514A (es) 2009-04-16
AU2007306675A1 (en) 2008-04-17
BRPI0718193B1 (pt) 2019-08-27
EP2077961A2 (de) 2009-07-15
NO340384B1 (no) 2017-04-10
US20100186648A1 (en) 2010-07-29
AU2007306675B2 (en) 2012-04-05
PT2077961T (pt) 2017-11-14
ES2637788T3 (es) 2017-10-17
CA2667074C (en) 2011-07-26
JP2013006598A (ja) 2013-01-10
JP2010505683A (ja) 2010-02-25
DK2077961T3 (en) 2017-09-18
JP5404403B2 (ja) 2014-01-29
ZA200902060B (en) 2010-02-24
BRPI0718193A2 (pt) 2013-11-05
ES2637788T8 (es) 2018-07-10
NO20091739L (no) 2009-04-30
HK1134667A1 (en) 2010-05-07
DE102006047755A1 (de) 2008-04-10
NZ575935A (en) 2012-04-27
US8215255B2 (en) 2012-07-10
WO2008043504A2 (de) 2008-04-17

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