WO2008066466A1 - Procedure to reduce the friction between a hull and the surrounding water by creating ribs in the hull paint - Google Patents
Procedure to reduce the friction between a hull and the surrounding water by creating ribs in the hull paint Download PDFInfo
- Publication number
- WO2008066466A1 WO2008066466A1 PCT/SE2007/001108 SE2007001108W WO2008066466A1 WO 2008066466 A1 WO2008066466 A1 WO 2008066466A1 SE 2007001108 W SE2007001108 W SE 2007001108W WO 2008066466 A1 WO2008066466 A1 WO 2008066466A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hull
- ribs
- fact
- procedure according
- procedure
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000003973 paint Substances 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract 2
- 239000010410 layer Substances 0.000 description 5
- 231100000614 poison Toxicity 0.000 description 3
- 230000007096 poisonous effect Effects 0.000 description 3
- DBGVGMSCBYYSLD-UHFFFAOYSA-N tributylstannane Chemical compound CCCC[SnH](CCCC)CCCC DBGVGMSCBYYSLD-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241001523707 Balanidae Species 0.000 description 1
- 241000237519 Bivalvia Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 235000016936 Dendrocalamus strictus Nutrition 0.000 description 1
- 229920001222 biopolymer Polymers 0.000 description 1
- 235000020639 clam Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
- B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
- B63B1/36—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using mechanical means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
Definitions
- the purpose of this invention is a process to reduce the friction between a hull and its surrounding water.
- a micro-ribbed surface structure can give less water resistance than a totally smooth surface.
- sharkskin shows ribs in its scales in the main parallel with the longitudinal direction of the body where the distance between the ribs can be 0.05 millimetre.
- a film from 3M Inc. was attached to the hull with the intention to reduce the water resistance.
- This film on its outside had a structure of parallel micro-ribs with a cross section roughly like an equilateral triangle whose height was 0.064 millimetre.
- the foil does not prevent biofouling and attaching the foil is expensive and difficult particularly on curved surfaces.
- the purpose of this invention is a process to make a ribbed surface structure directly on the surface of a hull.
- Figure 1 shows a tool on the hull of a ship seen from above.
- Figure 2 shows the tool according to Figure 1 seen against the side of the hull.
- a pressure plate 5 presses the band against the surface of the hull.
- 6 indicates rows of grain attached to the band.
- the rows can be arranged in columns and in each column the distance between two rows can be for instance one millimetre.
- the distance between the top row in a column and the top row in an adjacent column can be for instance 0.1 millimetre. If each column includes 400 rows and there are 10 columns on the band a surface 400 millimetres wide can be treated with 4000 grooves.
- a grain row can come into the same groove several times. Even if the grains are not arranged in rows they can produce grooves separated by ribs yet of a more irregular appearance and length. The important thing is to produce a surface structure of very small ribs and grooves.
- a tool according to the description above can for instance be attached to a contrivance according to the Swedish Patent 509 857 or to a carriage of a previously known kind where the carriage is kept against the hull by means of bands furnished with magnets and where the carriage is remote-controlled.
- the procedure can be done on newly built ships when they are in a dock. It can be advisable to make the surface of the hull even by grinding off welding seams between the ship plates.
- the surface paint which is applied should be applied so that when ready it has relatively big thickness. As mentioned the paint should contain agents against biofouling. Also on old ships which dock it can be appropriate to provide them with a thick layer of new paint.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Lubricants (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07852110A EP2094560A4 (en) | 2006-11-29 | 2007-12-14 | PROCEDURES FOR REDUCING THE FRICTION BETWEEN A HULL AND COMING WATER BY CREATING RIBS IN THE PAINT OF THIS HULL |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0602536A SE529509C2 (sv) | 2006-11-29 | 2006-11-29 | Förfarande för att minska friktionen mellan ett fartygsskrov och dess omgivande vatten |
| SE0602536-5 | 2006-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008066466A1 true WO2008066466A1 (en) | 2008-06-05 |
Family
ID=38441671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SE2007/001108 WO2008066466A1 (en) | 2006-11-29 | 2007-12-14 | Procedure to reduce the friction between a hull and the surrounding water by creating ribs in the hull paint |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2094560A4 (sv) |
| SE (1) | SE529509C2 (sv) |
| WO (1) | WO2008066466A1 (sv) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011124318A1 (de) * | 2010-04-09 | 2011-10-13 | Gerhardt Dorandt | Verfahren zum strukturieren einer oberfläche |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0340211A2 (de) * | 1988-04-27 | 1989-11-02 | ISOSPORT VERBUNDBAUTEILE Ges.m.b.H. | Verfahren zum Herstellen von Laufflächenbelägen für Skier, Ski-Lauf-Flächenbauteil mit einem so hergestellten Laufflächenbelag sowie Ski mit einem solchem Laufflächenbelag oder Laufflächenbauteil |
| WO1989011343A2 (en) * | 1988-05-26 | 1989-11-30 | Bmt Fluid Mechanics Limited | Improvements in or relating to reduction of drag |
| WO1994007740A1 (en) * | 1992-09-29 | 1994-04-14 | Mitsui Engineering & Shipbuilding Co., Ltd. | Method of forming air film on submerged surface of submerged part-carrying structure, and film structure on submerged surface |
| DE19631537A1 (de) * | 1996-07-23 | 1998-01-29 | Okoe Charles Dipl Ing Fh | Rillenprofil zur verbesserten Gleitfähigkeit und Energieeinsparung bei verschiedenen Objekten im Wasser |
| SE509857C2 (sv) | 1997-10-22 | 1999-03-15 | Ragnar Winberg | Anordning för uppbärande av ytbehandlingsorgan på fartyg |
| US6193191B1 (en) * | 1996-07-15 | 2001-02-27 | Institut Francais Du Petrole | Modified surface for reducing the turbulences of a fluid and transportation process |
| US20040126541A1 (en) * | 2002-12-31 | 2004-07-01 | Dietz Timothy M. | Drag reduction article and method of use |
| BE1016624A3 (nl) * | 2005-06-02 | 2007-03-06 | Rompay Boudewijn Gabriel Van | Onderwateroppervlak van vaartuigen en werkwijze voor het vervaardigen ervan. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5386955A (en) * | 1986-05-22 | 1995-02-07 | Rolls-Royce Plc | Control of fluid flow |
| BE1003326A6 (nl) * | 1990-01-15 | 1992-02-25 | Mathews Jordan William | Werkwijze voor het verminderen van de wrijvingsweerstand van een bewegend voorwerp en voorwerp met aldus verminderde wrijvingsweerstand. |
| DE19725251C2 (de) * | 1997-06-14 | 2000-07-13 | Voith Hydro Gmbh & Co Kg | Verfahren zum Herstellen eines Bauteiles für eine hydraulische Strömungsmaschine sowie ein danach hergestelltes Bauteil |
-
2006
- 2006-11-29 SE SE0602536A patent/SE529509C2/sv unknown
-
2007
- 2007-12-14 WO PCT/SE2007/001108 patent/WO2008066466A1/en active Application Filing
- 2007-12-14 EP EP07852110A patent/EP2094560A4/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0340211A2 (de) * | 1988-04-27 | 1989-11-02 | ISOSPORT VERBUNDBAUTEILE Ges.m.b.H. | Verfahren zum Herstellen von Laufflächenbelägen für Skier, Ski-Lauf-Flächenbauteil mit einem so hergestellten Laufflächenbelag sowie Ski mit einem solchem Laufflächenbelag oder Laufflächenbauteil |
| WO1989011343A2 (en) * | 1988-05-26 | 1989-11-30 | Bmt Fluid Mechanics Limited | Improvements in or relating to reduction of drag |
| WO1994007740A1 (en) * | 1992-09-29 | 1994-04-14 | Mitsui Engineering & Shipbuilding Co., Ltd. | Method of forming air film on submerged surface of submerged part-carrying structure, and film structure on submerged surface |
| US6193191B1 (en) * | 1996-07-15 | 2001-02-27 | Institut Francais Du Petrole | Modified surface for reducing the turbulences of a fluid and transportation process |
| DE19631537A1 (de) * | 1996-07-23 | 1998-01-29 | Okoe Charles Dipl Ing Fh | Rillenprofil zur verbesserten Gleitfähigkeit und Energieeinsparung bei verschiedenen Objekten im Wasser |
| SE509857C2 (sv) | 1997-10-22 | 1999-03-15 | Ragnar Winberg | Anordning för uppbärande av ytbehandlingsorgan på fartyg |
| US20040126541A1 (en) * | 2002-12-31 | 2004-07-01 | Dietz Timothy M. | Drag reduction article and method of use |
| BE1016624A3 (nl) * | 2005-06-02 | 2007-03-06 | Rompay Boudewijn Gabriel Van | Onderwateroppervlak van vaartuigen en werkwijze voor het vervaardigen ervan. |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2094560A4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011124318A1 (de) * | 2010-04-09 | 2011-10-13 | Gerhardt Dorandt | Verfahren zum strukturieren einer oberfläche |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2094560A1 (en) | 2009-09-02 |
| SE0602536L (sv) | 2007-09-04 |
| EP2094560A4 (en) | 2012-10-10 |
| SE529509C2 (sv) | 2007-09-04 |
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