GB2206324A - Rudder, particularly balanced profile rudder for water craft - Google Patents
Rudder, particularly balanced profile rudder for water craft Download PDFInfo
- Publication number
- GB2206324A GB2206324A GB08810527A GB8810527A GB2206324A GB 2206324 A GB2206324 A GB 2206324A GB 08810527 A GB08810527 A GB 08810527A GB 8810527 A GB8810527 A GB 8810527A GB 2206324 A GB2206324 A GB 2206324A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rudder
- bearing
- blade
- stock
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 6
- 230000007717 exclusion Effects 0.000 claims 1
- 230000003319 supportive effect Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/06—Steering by rudders
- B63H25/38—Rudders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/06—Steering by rudders
- B63H25/38—Rudders
- B63H25/381—Rudders with flaps
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Toys (AREA)
- Sliding-Contact Bearings (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
- Steering Controls (AREA)
- Earth Drilling (AREA)
- Selective Calling Equipment (AREA)
Abstract
The rudder for water craft comprises a rudder blade 30 with a fin articulated thereto and a propeller associated with the rudder and located on a drivable propeller shaft. The rudder stock 40 for the rudder blade 30 is mounted in a central inner longitudinal bore of the rudder port bearing 20 constructed as a cantilever beam by means of an inner bearing 50, the rudder port bearing 20 having an outer bearing 51 on its outer wall surface for mounting the rudder blade 30 on the rudder port bearing 20. <IMAGE>
Description
RUDDER, PARTICULARLY BALANCED PROFILE RUDDER FOR WATER
CRAFT
BACKGROUND OF THE INVENTION
The present invention relates to a rudder, particularly a balanced profile rudder for water craft, comprising a rudder blade and a fin articulated thereto and a propeller arranged on a drivable propeller shaft associated with said rudder.
Particularly in the case of spade-type rudders and balanced profile rudders with a fin, very high bending moments are introduced into the hull via the rudder bearings. These bending moments are due to the resultant rudder forces, which act in relation to the rudder port or tube bearing. Together with the torques necessary for the operation of the rudder, said biaxial stress state determines the necessary cross-section of the rudder stock in the vicinity of the rudder port bearing, the bearing dimensions and the dimensions of the rudder connection with the rudder stock and therefore also the rudder profile thickness.
It is known that the flow mechanically-favourable spade-type rudders and in particular the spade-type high efficiency rudders equipped with additionally articulated leading and/or trailing blades are mounted in cast and/or welded rudder ports housed in the stern above the stern counter or above the flat bottom, or in a stern fin fixed to the hull.
In the case of partially underhung rudders7 the bending moment is taken up by a rudder post connected to the hull, but very large rudders have a different mounting support system.
In a known fixable rudder, the hull is provided with a sleeve-like rudder port, which receives the rudder stock, which is guided into the rudder blade, which comprises a plurality of spaced, horizontally directed webs, which are lined with lateral plating and in which the rudder stock portion located in the interior of the rudder blade is fixed by means of welded joints, so that the rudder stock absorbs both torques and bending moments.
The bearings of spade-type and balanced profile rudders with a fin are, however, constructed in such a way that the bending moments emanating from the rudder rise up to the rudder port bearing and are borne by the rudder stock, which leads to very thick rudder stocks. Therefore there is a limitation to the use of spade-type rudders or balanced profile rudders with a fin as a result of the rudder stock thicknesses and the bearing dimensions, whereby this occurs with ships having a carrying capacity of approximately 15,000 tonnes.
The separation of the biaxial stress state occurring with partially underhung rudders leads to hydrodynamically unfavourable asymmetrical characteristics through the upper fixed post and the gap effects occurring over the lower movable balanced surface. The rudder moments often become highly asymmetrical as a result of the swirling flow of the propeller, so that relatively large steering engines are required for operating the rudder.
Displacement rudders with "heel" bearings suffer from the disadvantages that the wake distribution has an unfavourable infiuence on the propeller location and the resistance of appendages is increased.
In addition, in the case of the known rudders, it is not only necessary to remove the rudder blade from the rudder stock for replacing the propeller shaft, but instead the rudder stock must also be drawn out of the rudder port or at least raised, in order to permit the free withdrawal of the propeller shaft, because in the case of numerous rudders the rudder stock extends down to the propeller shaft centre and a replacement of said shaft is only possible if, after the rudder blade has been removed, the rudder stock is also withdrawn from the rudder port.
The problem of the present invention in the case of rudders, particularly for single or multiparts spade-type rudders and balanced profile rudders with a fin is, by means of a special design of the rudder port bearing, to directly absorb part of the bending moments otherwise initially introduced via the rudder stock into the rudder port bearing and only then into the hull, at the location of the rudder and so reduce rudder stock stressing with the objective of on the one hand permitting a simple constuctional connection of the consequently thinner rudder stock to the rudder and on the other hand to permit operation with smaller steering engines, whilst at the same facilitating propeller shaft interchange.
Another problem is to construct the rudder in such a way that it is effortlessly possible to remove and fit the propeller shaft, without having to remove the rudder stock from the rudder port bearing.
SUMMARY OF THE INVENTION
According to the invention this problem is solved by a rudder of the aforementioned type, which is constructed in such a way that the rudder port bearing is constructed a) as a cantilever beam with a central inner longitudinal bore for receiving the rudder stock for the rudder blade, b) extends into the rudder blade connected to the rudder stock end, c) is provided in its inner bore with a bearing for mounting the rudder stock, d) has a further bearing for receiving and supporting the rudder blade on its outer wall face roughly at the same height as the bearing in the inner bore of the rudder port bearing and the end of the rudder stock located in the rudder blade extends into the vicinity of the propeller shaft centre or above said propeller shaft centre.
The problem is also solved by a rudder of the aforementioned type in that the rudder port bearing is constructed a) as a cantilever beam with a central inner longitudinal bore for receiving the rudder stock for the rudder blade, b) extends into the rudder blade connected the rudder stock end, c) has in its inner bore a bearing for mounting the rudder stock, d) extends with its free end into a recess in the rudder blade and a portion of the rudder stock is led out in its end region from the rudder port bearing and by said portion is fixed to the rudder blade, the connection of the rudder stock to the rudder blade being located above the propeller shaft centre.
As a result of the first embodiment it is possible to have and elastic coupling of the rudder structure and rudder port bearing on the one hand and the rudder stock located in the immediate vicinity of the steering engine on the other and for this purpose the rudder port bearing is provided in its inner bore with a bearing for mounting the rudder stock, the possibility also existing of distributing several bearings over the rudder stock length.
Thus, rudder arrangements in the stern area are possible for which it is appropriate, in accordance with the constructional and manufacturing possibilities, to allow the rudder port bearing to project as far as possible into the rudder structure, so that it is advantageous if the rudder port bearing extends into the rudder over more than half the rudder height.
The advantages obtained through the inventive construction of the rudder are that now there is a considerable increase in the range of applications of spade-type rudders and balanced profile rudders with a fin in a divided and undivided construction with respect to the realizable rudder sizes.
This is brought about by a separation of the biaxial stress state, the bending moment being absorbed by the port drawn into the rudder and is introduced into the hull. The torque for rudder actuation is transferred over the long rudder stock. In the case of an unchanged rudder surface size, it is consequently possible to use more slender rudder profiles, which have a lower drag. In addition, the connection of rudder and rudder stock is more favourable from the manufacturing costs standpoints and with regards to installation. The proposed solution also offers the possibility of reducing capital and installation costs in connection with the smaller rudder port bearing. As a result of the separation of bending moments and torques, the bearing can be made smaller, because they are no longer exposed to severe bending strains and stresses.
The advantage resulting from the further embodiment, according to which only the rudder stock is mounted by means of a bearing in the end region of the rudder port bearing and the rudder stock in its end region is led out of the rudder port by a portion and is connected by the latter in fixed manner to the rudder blade, whereby the connection of the rudder stock to the rudder blade is located above the propeller shaft centre, without requiring a further bearing for the rudder blade on the outer wall surface of the rudder port bearing, is that for the replacement of the propeller shaft, following the removal of the rudder blade, the rudder stock no longer has to be drawn out of the rudder port bearing, because the connection between rudder stock and rudder blade is located above the propeller shaft centre.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described in greater detail hereinafter relative to non-limitative embodiments and the attached drawings, wherein show
Fig 1, a rudder arrangement according to the invention located in the stern area with a propeller associated with the rudder blade in side view.
Fig 2, a larger-scale representation of the rudder arrangement with a bearing for mounting the rudder stock in the rudder port bearing and a further bearing for mounting the rudder blade on said bearing, partly in side view and partly in vertical section.
Fig 3, a diagrammatic representation of the bearing arrangement between rudder port and rudder stock on the one hand and rudder stock and rudder blade on the other.
Fig 4, a larger-scale representation of a further embodiment of the rudder arrangement with the rudder stock mounted in the rudder port bearing and the fixing point of the rudder stock to the rudder blade located above the propeller shaft centre.
Fig 5, a vertical section along line V - V of fig 4.
Fig 6, a diagrammatic representation of the bearing arrangement between the rudder stock and the rudder port.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
In the embodiment shown in figs 1, 2 and 3, the hull is 10, the rudder port bearing 20, a rudder blade 30 and a rudder stock 40.
The rudder port bearing 20 constructed as a cantilever beam is fixed by its upper end 20a to the hull 10 and is provided with a central inner bore 5, which extends in the longitudinal direction of the rudder port bearing and which receives the rudder stock 40. The rudder port bearing 20 is introduced into the rudder blade 30, which is fixed to the free lower end 40b of the rudder stock 40 passed through the inner bore 25 of the rudder port bearing 20.
The preferable cylindrical recess 35 for receiving the free end 20b of the rudder port bearing 20 formed in rudder blade 30 is bounded by lateral plating 31, 32 (fig 2).
In the embodiment shown in fig 2 over more than half of the rudder blade height, the rudder port bearing 20 is constructed so as to extends into rudder blade 30. However, it is also possible to make longer or shorter the portion of the rudder port bearing 20 extending into rudder blade 30.
For the purposes of mounting the rudder stock 40, the rudder port bearing 20 is provided in its inner bore 25 with a bearing 50, which in the embodiment shown in fig 2 is located above the centre 200 of a propeller shaft 210 (fig 1), which carries a propeller 220 associated with rudder blade 30. As shown in fig 1, a fin 135 is articulated to rudder blade 30 and is controllable about a vertical axis 135a by means of a correspondingly constructed device and namely either by a forcible control by the rudder blade or by a separate control device.
Bearing 50 for mounting the rudder stock 40 in the inner bore 25 of the rudder port bearing 20 is preferably located in the vicinity of the lower end 20b of the rudder port bearing 20.
However, instead of a single bearing 50 , it is possible to have several inner bearings distributed over the length of the rudder stock 40, should this prove necessary. The lower end 40b of rudder stock 40 is led below the propeller shaft centre 200 and is fixed at 70 to rudder blade 30.
In the outer jacket region of the rudder port bearing 20 is provided an outer bearing 51 for mounting the rudder blade 30 on the outer wall of the rudder port bearing 20. This outer bearing 51 for mounting the rudder blade 30 on the rudder port bearing 20 is provided in the vicinity of inner bearing 50, but it is also possible to position said outer bearing 51 in another area of the rudder port bearing 20. It is also possible, in place of the single outer bearing 51, to have several such outer bearings distributed over the length of the rudder port bearing 20 for mounting the rudder blade on the rudder port bearing. In order to obtain a small rudder blade width, the outer wall of the rudder port bearing 20 can conically taper towards the rudder port end 20b.As a result of this conical outer wall construction, it is then necessary to correspondingly construct the bearings arranged on the outer wall of the rudder port bearing 20 or to correspondingly design the outer wall region of the rudder port bearing 20 for the installation of the bearings. The arrangement of bearings 50, 51 and the fixing of the rudder stock 40 to the rudder blade 30 can be gathered from the diagrammatic representation of fig 3.
According to the embodiment shown in figs 2 and 3, the rudder port bearing 20 as a cantilever beam is provided with a central inner longitudinal bore 25 for receiving the rudder stock 40 for rudder blade 30. Rudder port bearing 20 extends into the rudder blade 30 connected to the rudder stock end.
In its inner bore 25, the rudder port bearing 20 has a bearing 50 for mounting the rudder stock 40, whilst on its outer wall face and roughly at the same height as bearing 50 a further bearing 51 is provided in the inner bore 25 of rudder port bearing 20 for receiving and supporting the rudder blade 30. The end of the rudder stock 40 located in rudder blade 30 passes into the vicinity of or below the propeller shaft centre 200. Thus, there is an inner bearing 50 and an outer bearing 51 in the end region 20b of the rudder port bearing 20. Moreover, the rudder port bearing 20 extends into the rudder blade 30 over more than half the rudder blade height, the outer wall of the rudder port bearing 20 being constructable in conically tapering manner up to the rudder port end 20b.
If the lower end 40b of rudder stock 40 is fixed to the rudder blade 30 roughly in the vicinity of the propeller shaft centre 200 and the connection between the rudder stock 40 and rudder blade 30 is constructed in such a way that it is possible to release the rudder blade 30 from the rudder stock 40 for the disassembly of the propeller shaft 210, then on replacing the latter, following the removal of the rudder blade 30 from the rudder stock 40, the latter only has to be slightly withdrawn from the rudder port bearing 20, so as to obtain a free space for replacing the propeller shaft.
In the embodiment shown in figs' 4 to 6, there is a hull 110, a rudder port bearing 120, a rudder blade 130 and a rudder stock 140, a fin 135 being articulated to blade 130. here again rudder blade 130 has a preferably cylindrical recess 155 for receiving the free end 120b of the rudder port bc-'ariny 120.
Rudder port bearing 120 as a cantilever beam is provided with a central inner longitudinal bore 125 for receiving the rudder- stock 140 for the rudder blade 130. In addition, the rudder port bearing 120 extends into the rudder blade 130 connected to the rudder stock end. In its inner bore 125, the rudder port bearing 120 has a bearing 150 for mounting the rudder stock 140 and preferably said bearing 150 is located in the lower end region 120b of the rudder port bearing 120. A portion 145 of the end 140b of rudder stock 40 passes out of the rudder port bearing 120. The free lower end of this extended portion 145 of rudder stock 140 is fixed at 170 to the rudder blade 130, but here again a connection is provided which permits a detachment of rudder blade 130 from rudder stock 140 if the propeller shaft is to be replaced.The connection of rudder stock 140 in the vicinity of 170 to the rudder blade 130 is located above the propeller shaft centre 200, so that for the disassembly of the propeller shaft it is merely necessary to remove the rudder blade 130 from the rudder stock 140. However, there is no need to draw the rudder stock 140 out of the rudder port bearing 120, because both the free lower end 120b of rudder port bearing 120 and the free lower end of rudder stock 140 locate above the propeller shaft centre. In the embodiment of figs 4 to 6, there is only a single inner bearing 150 for mounting the rudder stock 140 in rudder port bearing 120. There is no need for a further bearing for the rudder blade 130 on the outer wall of the rudder port bearing 120. Rudder blade 130 is provided with a recess 160 for receiving the free lower end 120b of the rudder port bearing 120.
In the rudder according to the embodiment of figs 4 to 6, the rudder port bearing 120 as a cantilever beam is provided with a central inner longitudinal bore 125 for receiving the rudder stock 140 for the rudder blade 130. Moreover, the rudder port bearing 120 extends into the rudder blade 130 connected in the rudder stock end and is provided in its inner bore 125 with a bearing 150 for mounting the rudder stock 140 in the rudder port bearing 120. The free end 120b of rudder port bearing 120 extends into a recess 160 in rudder blade 130, a portion 145 of the end region 140b of rudder stock 140 being led out of the rudder port bearing 120. The rudder stock 140 with rudder blade 130 is connected to the free end of said extended portion 145 and the connection of the rudder stock 140 to rudder blade 130 is located above the propeller shaft centre 200. Preferably inner bearing 150 is located in the end region 120b of the rudder port bearing 120.
The invention is not restricted to the above-described embodiments shown in the drawings. Variations in the arrangement of the bearings in the vicinity of the rudder port bearing 20 or 120 and the rudder stock 40 or 140 fall within the scope of the invention, as does a different construction of the cylindrical recess 35 or 160 in rudder blade 30 or 130. The inventively constructed rudder arrangement can be used both for ships and floating platforms and the like.
Claims (7)
1. A rudder, particularly a balanced profile rudder for water craft, comprising a rudder blade and a fin articulated thereto and a propeller arranged on a drivable propeller shaft associated with said rudder, wherein the rudder port bearing is constructed a) as a cantilever beam with a central inner longitudinal bore for receiving the rudder stock for the rudder blade, b) extends into the rudder blade connected to the rudder stock end, c) is provided in its inner bore with a bearing for mounting the rudder stock, d) has a further bearing for receiving and supporting the rudder blade on its outer wall face roughly at the same height as the bearing in the inner bore of the rudder port bearing and the end of the rudder stock located in the rudder blade extends into the vicinity of the propeller shaft centre or above said propeller shaft centre.
2. A rudder, particularly a balanced profile rudder for water craft, comprising a rudder blade and a fin articulated thereto and a propeller arranged on a drivable propeller shaft associated with said rudder, wherein the rudder port bearing is constructed a) as a cantilever beam with a central inner longitudinal bore for receiving the rudder stock for the rudder blade, b) extends into the rudder blade connected the rudder stock end, c) has in its inner bore a bearing for mounting the rudder stock, d) extends with its free end into a recess in the rudder blade and a portion of the rudder stock is led out in its end region from the rudder port bearing and by said portion is fixed to the rudder blade, the connection of the rudder stock to the rudder blade being located above the propeller shaft centre.
3. A rudder according to claim 1, wherein there is an inner bearing and an outer bearing in the end region of the rudder port bearing.
4. A rudder according to claim 3, wherein the inner and outer bearings are arranged at the same height in the end region of the rudder port bearing.
5. A rudder according to claims 1, 3 and 4, wherein the rudder port bearing. extends into the rudder blade over more than half of the rudder blade height.
6. A rudder according to claim 2, wherein the inner bearing for mounting the rudder stock in the rudder port bearing is located in the end region of the latter.
7. A rudder according to claims 1 to 6, wherein the outer wall of the rudder port bearing conically tapers towards the rudder port end.
Amendments to the claims have been filed as follows
CLAIMS 1A rudder, partcularly a balanced profile rudder for
vessels, comprising a rudder blade with a fin hinged
thereupon, an associated propeller mounted on a
drivable propeller shaft and a rudder port bearing
which constitutes a cantilever beam, which has a
central, internal longitudinal bore accommodatlng a
rudder stock for the rudder blade and which extends
into the rudder blade connected to the rudder stock
end,
characterised in that
to the exclusion of a supportive mounted of the
rudder port bearing in the rudder blade, for supporting the rudder stock in the rudder port
bearing, only one bearing is provided,
in that the free end of the rudder bearing projects
into a recess, aepress-on or the like ifl the rudder
blade, and ifl that the terminal portion of the rudder stock
extends from the rudder bearing and is connected to
the rudder blade,
the connection of the rudder stock to the rudder
blade being located above the centre of the
propeller shaft.
2 A rudder according to Ciaim i, wherein the outer
wall of the rudder port bearing tapers conically
towards the rudder port end.
3 A rudder substantially as hereinbefore described
with reference to Figs. 4 to 6 of the accompanying
drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8708276U DE8708276U1 (en) | 1987-06-12 | 1987-06-12 | Rudders, especially balanced profile rudders for watercraft |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8810527D0 GB8810527D0 (en) | 1988-06-08 |
| GB2206324A true GB2206324A (en) | 1989-01-05 |
| GB2206324B GB2206324B (en) | 1991-06-26 |
Family
ID=6809046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8810527A Expired - Lifetime GB2206324B (en) | 1987-06-12 | 1988-05-04 | Rudder and propulsion system for vessels |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JP2594321B2 (en) |
| KR (1) | KR930001869B1 (en) |
| CN (1) | CN1006878B (en) |
| DE (2) | DE8708276U1 (en) |
| GB (1) | GB2206324B (en) |
| NL (1) | NL193185C (en) |
| NO (1) | NO171776C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003043882A1 (en) * | 2001-11-20 | 2003-05-30 | Becker Marine Systems Gmbh & Co. Kg | Rudder with sliding pivoting piston coupling |
| WO2007073071A1 (en) * | 2005-12-21 | 2007-06-28 | Samsung Heavy Ind. Co., Ltd | The spade rudder |
| SG152964A1 (en) * | 2007-11-16 | 2009-06-29 | Becker Marine Sys Gmbh & Co Kg | High performance rudder for ships |
| CN101987657A (en) * | 2009-07-31 | 2011-03-23 | 贝克船舶系统有限公司 | Linkage device for flap rudders for watercraft |
| CN102625764A (en) * | 2009-09-02 | 2012-08-01 | 贝克船舶系统有限及两合公司 | Upper rudder carrier bearing |
| JP2017518911A (en) * | 2014-04-01 | 2017-07-13 | ベッカー マリン システムズ ゲーエムベーハー ウント コー カーゲーｂｅｃｋｅｒ ｍａｒｉｎｅ ｓｙｓｔｅｍｓ ＧｍｂＨ＆Ｃｏ．ＫＧ | Bearing for supporting shaft, electronic bearing clearance measuring device, rudder with bearing for supporting shaft, and method for measuring wear of bearing for supporting shaft |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4426953B4 (en) * | 1994-07-29 | 2005-09-22 | Tbi Technologie-Beratungs-Institut Gmbh | Rudder or rudder nozzle with hinged fin for watercraft |
| DE19746853C2 (en) * | 1997-10-23 | 2002-06-27 | Stahl Und Maschb Gmbh | High-spade rudders |
| DE19841392B4 (en) * | 1998-09-10 | 2008-01-24 | Tbi Technologie-Beratungs-Institut Gmbh | High load balanced rudder |
| KR20020090053A (en) * | 2001-05-26 | 2002-11-30 | (유)성우기계 | Rudder manufacturing method for a ship |
| ITGE20020077A1 (en) * | 2002-08-22 | 2004-02-23 | Costantino Bandiera | RUDDER TRANSMISSION MECHANISM FLAP GUIDE BEARINGS. |
| DE10335485A1 (en) * | 2003-08-02 | 2005-03-03 | Dudszus, Alfred, Prof. Dr.-Ing. | Integrated rudder installation for ships, has upper one of two radial bearings and thrust bearing connected via coupling to helm, especially top rail, to form integrated unit |
| DE202004006453U1 (en) * | 2004-04-23 | 2004-11-11 | Becker Marine Systems Gmbh & Co. Kg | Oars for ships |
| DE202005019626U1 (en) * | 2005-10-31 | 2006-03-16 | Becker Marine Systems Gmbh & Co. Kg | Device for checking and measuring the neck bearing clearance of the rudder stock of a rudder for watercraft |
| DE202007008804U1 (en) | 2007-06-21 | 2007-08-16 | Becker Marine Systems Gmbh & Co. Kg | Watercraft e.g. ship, rudder, has rudder blade pivotable through bracket, fin controlling device with control units arranged in outer side of blade, and protection conducting units firmly anchored at ship hull |
| DE202007012480U1 (en) * | 2007-09-05 | 2007-11-29 | Becker Marine Systems Gmbh & Co. Kg | Oars for ships |
| ATE458670T1 (en) * | 2007-11-13 | 2010-03-15 | Becker Marine Sys Gmbh & Co Kg | RUDDER ARRANGEMENT FOR HIGHER SPEED VESSELS WITH A CAVITATION-REDUCING, TWISTED, ESPECIALLY FULL HOVER RUDDER |
| DE102009046162A1 (en) * | 2009-10-29 | 2011-05-05 | Van Der Velden Barkemeyer Gmbh | Oars for ships |
| DE102010001102A1 (en) * | 2009-11-06 | 2011-05-12 | Becker Marine Systems Gmbh & Co. Kg | Arrangement for determining a force acting on a rudder |
| PL2630029T3 (en) | 2010-10-18 | 2015-05-29 | A Bakkanum Sp/F | Rudder for a vessel |
| KR101324316B1 (en) * | 2011-12-22 | 2013-11-01 | 삼성중공업 주식회사 | Rudder and ship having the same |
| CN115384748A (en) * | 2022-09-15 | 2022-11-25 | 重庆长源船舶设备有限公司 | Suspension type flap rudder for river |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1489450A (en) * | 1975-12-08 | 1977-10-19 | Becker Ingbuero W | Vessel rudder assembly |
-
1987
- 1987-06-12 DE DE8708276U patent/DE8708276U1/en not_active Expired
- 1987-06-16 KR KR1019870006114A patent/KR930001869B1/en not_active IP Right Cessation
- 1987-06-17 CN CN87104887A patent/CN1006878B/en not_active Expired
-
1988
- 1988-05-03 DE DE3814943A patent/DE3814943A1/en active Granted
- 1988-05-04 GB GB8810527A patent/GB2206324B/en not_active Expired - Lifetime
- 1988-05-05 NO NO881966A patent/NO171776C/en not_active IP Right Cessation
- 1988-05-31 NL NL8801392A patent/NL193185C/en not_active IP Right Cessation
- 1988-06-08 JP JP63141463A patent/JP2594321B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1489450A (en) * | 1975-12-08 | 1977-10-19 | Becker Ingbuero W | Vessel rudder assembly |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6945186B2 (en) | 2001-11-20 | 2005-09-20 | Becker Marine Systems Gmbh & Co. Kg | Rudder with sliding pivoting piston coupling |
| WO2003043882A1 (en) * | 2001-11-20 | 2003-05-30 | Becker Marine Systems Gmbh & Co. Kg | Rudder with sliding pivoting piston coupling |
| HRP20040438B1 (en) * | 2001-11-20 | 2012-05-31 | Becker Marine Systems Gmbh & Co. Kg | Rudder with sliding pivoting piston coupling |
| US7926435B2 (en) | 2005-12-21 | 2011-04-19 | Samsung Heavy Ind. Co., Ltd. | Spade rudder |
| WO2007073071A1 (en) * | 2005-12-21 | 2007-06-28 | Samsung Heavy Ind. Co., Ltd | The spade rudder |
| SG152964A1 (en) * | 2007-11-16 | 2009-06-29 | Becker Marine Sys Gmbh & Co Kg | High performance rudder for ships |
| US7717052B2 (en) | 2007-11-16 | 2010-05-18 | Becker Marine Systems Gmbh & Co., Kg | High performance rudder for ships |
| CN101987657A (en) * | 2009-07-31 | 2011-03-23 | 贝克船舶系统有限公司 | Linkage device for flap rudders for watercraft |
| CN101987657B (en) * | 2009-07-31 | 2013-12-25 | 贝克船舶系统有限公司 | Linkage device for flap rudders for watercraft |
| CN102625764A (en) * | 2009-09-02 | 2012-08-01 | 贝克船舶系统有限及两合公司 | Upper rudder carrier bearing |
| US8858085B2 (en) | 2009-09-02 | 2014-10-14 | Becker Marine Systems Gmbh & Co. Kg | Upper rudder carrier bearing |
| CN102625764B (en) * | 2009-09-02 | 2015-05-20 | 贝克船舶系统有限及两合公司 | Upper rudder carrier bearing |
| JP2017518911A (en) * | 2014-04-01 | 2017-07-13 | ベッカー マリン システムズ ゲーエムベーハー ウント コー カーゲーｂｅｃｋｅｒ ｍａｒｉｎｅ ｓｙｓｔｅｍｓ ＧｍｂＨ＆Ｃｏ．ＫＧ | Bearing for supporting shaft, electronic bearing clearance measuring device, rudder with bearing for supporting shaft, and method for measuring wear of bearing for supporting shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| NL193185B (en) | 1998-10-01 |
| GB8810527D0 (en) | 1988-06-08 |
| DE3814943C2 (en) | 1991-12-12 |
| NO171776B (en) | 1993-01-25 |
| NL193185C (en) | 1999-02-02 |
| NO881966L (en) | 1988-12-13 |
| KR890000312A (en) | 1989-03-13 |
| CN1006878B (en) | 1990-02-21 |
| NO881966D0 (en) | 1988-05-05 |
| DE3814943A1 (en) | 1988-12-29 |
| JP2594321B2 (en) | 1997-03-26 |
| KR930001869B1 (en) | 1993-03-18 |
| DE8708276U1 (en) | 1987-08-27 |
| GB2206324B (en) | 1991-06-26 |
| NO171776C (en) | 1993-05-05 |
| NL8801392A (en) | 1989-01-02 |
| JPS644597A (en) | 1989-01-09 |
| CN1030726A (en) | 1989-02-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |
Expiry date: 20080503 |