AU2010274699B2 - Self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow - Google Patents
Self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow Download PDFInfo
- Publication number
- AU2010274699B2 AU2010274699B2 AU2010274699A AU2010274699A AU2010274699B2 AU 2010274699 B2 AU2010274699 B2 AU 2010274699B2 AU 2010274699 A AU2010274699 A AU 2010274699A AU 2010274699 A AU2010274699 A AU 2010274699A AU 2010274699 B2 AU2010274699 B2 AU 2010274699B2
- Authority
- AU
- Australia
- Prior art keywords
- alteration
- water flow
- water
- hull
- trim system
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 230000004075 alteration Effects 0.000 title claims abstract description 24
- 230000004888 barrier function Effects 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000003912 environmental pollution Methods 0.000 claims description 5
- 230000006378 damage Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 230000002441 reversible effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/005—Equipment to decrease ship's vibrations produced externally to the ship, e.g. wave-induced vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/02—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
- B63B39/03—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
- B63B39/061—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water by using trimflaps, i.e. flaps mounted on the rear of a boat, e.g. speed boat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
- B63B2039/067—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water effecting motion dampening by means of fixed or movable resistance bodies, e.g. by bilge keels
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Hydraulic Turbines (AREA)
- Cleaning In General (AREA)
- Sealing Devices (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow, of this invention consists of a main body (1) inside of which an elastic flexible pressure means (5), is being housed properly, located on supporting plates (4), compression-retraction springs (7) of said flexible elastic pressure means (5), spring guides (8), spring housing tubes (9), a hydrodynamic barrier (6), a back guide (2) and a front guide (10) for the hydrodynamic barrier (6) and a cover (3), being characterized in that said flexible elastic pressure means (5) is being independent and self contained, said system is also being capable of operating with no seals by use of only water, requiring no dedicated water pump, is being capable of being self cleaned internally and has the form of a cubic shape.
Description
- 1 SELF CONTAINED ECOLOGICAL DYNAMIC BOAT PITCH AND ROLL TRIM SYSTEM BY ALTERATION OF THE HULL WATER FLOW The present invention refers to a self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow being invented, 5 designed manufactured and distributed in the market by exclusively us. The most widespread boat pitch and roll trim systems in the global market are the ones of horizontal plate type and of vertical hydrodynamic barrier type, both using either a hydraulic cylinder, or an electric screw type cylinder and/or even any other linear movement hydraulic cylinder, - essentially io however of a high pressure i.e approximately 40 atmospheres -, said systems functioning exclusively by use of a mineral oil, being suitable for hydraulic circuits, thus requiring regular repair and maintenance, while with reference to the electric systems these need extensive work for the reason that mechanical power has to be transmitted through the hull and moreover both of said is systems present an overall installation shape of inverted T, that creates problems as regards installation and ship space exploitation in that particular area. The system of hydrodynamic barrier is established as being the most efficient of the two aforementioned ones, however this is being at a 20 disadvantage, for the reason that due to the need of internal lubrication under high oil pressures it is being unable to operate by use of any liquid other than oil and provided that seals there exist fixed in its cylinder system, this resulting in a very fast wearing of said seals, due to continuous contact with salty water and micro-organisms and the inevitable fouling entering the system, requiring very 25 frequent repairs and maintenance having the severe consequence of the environmental pollution caused by oil spillage during the repair and maintenance processes. An embodiment of the present invention may overcome all aforementioned problems and eliminate all disadvantages of existing 30 technological level, by presenting of a self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow, bearing no seals whatsoever and being able to operate by use of water only, thus no environmental pollution is being allowed to be caused, that is furthermore in advantageous embodiments being maintenance free and having a functional 35 shape and small volume, so that installation in the suitable place, as well as exploitation of boat space to be facilitated. The invention provides a self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow, consisting of a main body(1) inside of which an elastic flexible pressure means (5), is being housed 40 properly, located on supporting plates (4), compression-retraction springs (7) of said flexible elastic pressure means (5), spring guides (8), spring housing tubes (9), a hydrodynamic barrier (6), a back guide (2) and a front guide (10) for the hydrodynamic barrier (6) and a cover (3), wherein said flexible elastic pressure means (5) is independent and self contained, wherein said system is also 7674781_1 (GHMatters) P89190.AU 26/04/16 - 2 capable of operating with no seals by use of only water, requiring no dedicated water pump, and is capable of being self cleaned internally and has the form of a cubic shape. In an embodiment, said independent flexible elastic pressure means, is 5 capable of exerting pressure and force throughout its surface, due to its nature, by requirement of an operating pressure of 1-3 bar and the use of a non compressible fluid, which fluid due to the system designing and application is water, requiring no additional independent hydraulic pump unit, for the system is able to use an existing boat water installation unit, according to said boat io water installation unit operating parameters. In an embodiment, the use of no seals provides the internal free water circulation via the main body, further resulting to a hydrodynamic self cleaning effect from fouling of any kind. In an embodiment, in the event of failure of said independent flexible 15 elastic pressure means (5), either due to wear or due to an accident, not even the least of environmental pollution is likely to be caused, since water is only used. In an embodiment, the system is capable of being either partially or fully repaired while the boat is in the water. 20 In an embodiment, the compression springs (7) are capable of being replaced by any other elastic means being suitable, while a command for the water feed to said independent flexible elastic pressure means (5) can be given by any mechanical way known. In an embodiment, in a retracted mode a minimal or no water volume is 25 contained inside said elastic means (5) that retained in a position by the compression force exerted by the springs (7), while at the same time the hydrodynamic barrier (6) is at the top position without the hull water flow being affected; Wherein, upon giving a suitable command, a volume of water is inserted inside the elastic means (5) said elastic means (5) begins to expand 30 thus pushing and moving the hydrodynamic barrier (6) simultaneously to the operation position, while the reverse action is achieved by relieving of fluid, assisted by the compression springs (7) via the same supply pipe and by the use of a suitable three way flow connector. In an embodiment, the system constitutes a unit capable of being 35 produced in any desirable length since its design makes it possible for that dimension. In an embodiment, due to being in the form of a compact unit, the system is capable of being fixed in small boats which until now could not bear a classic trim system because of the passenger movement through these spaces, 40 so that no injuries are caused whatsoever. An embodiment of the new self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow may be characterized in 7674781_1 (GHMatters) P89190.AU 26/04/16 - 3 that it brings a self contained flexible elastic pressure means which due to its nature is being capable of exerting pressure and force throughout its surface, by requirement of very small operating pressure of 1-3 bar, and use of a non compressible fluid, which fluid due to the system designing and application is 5 being the water, requiring no additional independent hydraulic pump unit, for it is able of using the existing boat water installation unit, according to said boat water installation unit operating parameters and may also be characterized by bearing of no seals, this resulting to a free water circulation inside the body system, providing thus an internal hydrodynamic self-cleaning mechanism from io any kind of fouling, while in the event of failure of said elastic flexible means, either due to wear or due to an accident, not even the least of environmental pollution is likely to be caused, since water is only used in the circuit and moreover said system is capable of being repaired either partially or fully while the boat is being in the water eliminating thus the time-consuming and costly 15 processes of hauling out and launching of the boat. Finally it may also be an advantage due to its unique cubic design of a very small volume occupying up to 75% less space as compared to traditional systems for the same installation at the same boat, causing no injuries also due to its overall shape. The self contained ecological dynamic boat pitch and roll trim system by 20 alteration of the hull water flow of an embodiment of the present invention will be further understood by reference to the accompanying drawings, were a detailed presentation is shown in an indicative and not at all limiting materialization where: FIGURE 1 , shows the self contained ecological dynamic boat pitch and 25 roll trim system by alteration of the hull water flow, bearing its cover in front view. FIGURE 2, shows the self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow, without its cover in front view. FIGURE 3, shows the self contained ecological dynamic boat pitch and 30 roll trim system by alteration of the hull water flow, in top view. FIGURE 4, shows the self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow, in side view. FIGURE 5, shows the self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow, in retracted position side 35 view, and FIGURE 6, shows the self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow, in extended position side view. Specifically, the self contained ecological dynamic boat pitch and roll trim 40 system by alteration of the hull water flow of an embodiment of the invention, consists of a main body (1) inside of which a self contained, independent elastic flexible pressure means (5), is being housed properly, located on supporting plates (4), compression-retraction springs (7) of said independent flexible 7674781_1 (GHMatters) P89190.AU 26/04/16 - 4 elastic pressure means (5), spring guides (8), spring housing tubes (9), a hydrodynamic barrier (6), a back guide (2) and a front guide (10) for the hydrodynamic barrier (6) and a cover (3) . In the retracted mode of an embodiment of the invention system, a 5 minimal or no water volume is contained inside said elastic means (5) that is being retained in this position by the compression force exerted by the springs (7), while at the same time the hydrodynamic barrier (6) is being at the top position without the hull water flow being affected. When, by giving a suitable command, a volume of water is inserted inside the elastic means (5) said io begins expanding thus pushing and moving the hydrodynamic barrier (6) simultaneously to the operation position, while the reverse occurs by relieving of fluid, assisted by the compression springs (7) via the same supply pipe and by the use of a suitable three way flow connector. Alternatively, it has to be noted that, the compression springs (7) can be is replaced by any other elastic means being suitable and the command for the water feed can be given by any mechanical way known. Due to the use of non compressible fluid, the hydrodynamic barrier (6) movement is being linear and fully controlled to having unlimited intermediate operating positions. 20 Finally due to its design, the whole system constitutes a compact unit which can cause no injuries, in contrast with the horizontal plate systems, so that it can even be fixed in small boats which until now could not bear a classic trim system because of the passenger movement through these spaces, while additionally as a unit it can be manufactured in any desirable size since the 25 design length does not constitute a limiting factor. It is to be understood that, if any prior art publication is referred to herein, such reference does not constitute an admission that the publication forms a part of the common general knowledge in the art, in Australia or any other 30 country. In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word "comprise" or variations such as 35 "comprises" or "comprising" is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention. 7674781_1 (GHMatters) P89190.AU 26/04/16
Claims (9)
1. A self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow, consisting of a main body(1) inside of which an elastic flexible pressure means (5), is being housed properly, located on 5 supporting plates (4), compression-retraction springs (7) of said flexible elastic pressure means (5), spring guides (8), spring housing tubes (9), a hydrodynamic barrier (6), a back guide (2) and a front guide (10) for the hydrodynamic barrier (6) and a cover (3), wherein said flexible elastic pressure means (5) is independent and self contained, wherein said system is also 10 capable of operating with no seals by use of only water, requiring no dedicated water pump, and is capable of being self cleaned internally and has the form of a cubic shape.
2. A dynamic boat pitch and roll trim system by alteration of the hull water flow as in claim 1, wherein said independent flexible elastic pressure means, is 15 capable of exerting pressure and force throughout its surface, due to its nature, by requirement of an operating pressure of 1-3 bar and the use of a non compressible fluid, which fluid due to the system designing and application is water, requiring no additional independent hydraulic pump unit, for the system is able to use an existing boat water installation unit, according to said boat 20 water installation unit operating parameters.
3. A dynamic boat pitch and roll trim system by alteration of the hull water flow as in claims 1 or 2, wherein the use of no seals provides the internal free water circulation via the main body, further resulting to a hydrodynamic self cleaning effect from fouling of any kind. 25
4. A dynamic boat pitch and roll trim system by alteration of the hull water flow as in any one of claims 1 to 3 wherein, in the event of failure of said independent flexible elastic pressure means (5), either due to wear or due to an accident, not even the least of environmental pollution is likely to be caused, since water is only used. 30
5. A dynamic boat pitch and roll trim system by alteration of the hull water flow as in any one of claims 1 to 4 wherein the system is capable of being either partially or fully repaired while the boat is in the water.
6. A dynamic boat pitch and roll trim system by alteration of the hull water flow as in any one of claims 1 to 5 wherein the compression springs (7) are 35 capable of being replaced by any other elastic means being suitable, while a command for the water feed to said independent flexible elastic pressure means (5) can be given by any mechanical way known.
7. A dynamic boat pitch and roll trim system by alteration of the hull water flow as in any one of claims 1 to 6 wherein, in a retracted mode a minimal or no 40 water volume is contained inside said elastic means (5) that is retained in a position by the compression force exerted by the springs (7), while at the same time the hydrodynamic barrier (6) is at the top position without the hull water flow being affected; Wherein, upon giving a suitable command, a volume of 7674781_1 (GHMatters) P89190.AU 26/04/16 - 6 water is inserted inside the elastic means (5) said elastic means (5) begins to expand thus pushing and moving the hydrodynamic barrier (6) simultaneously to the operation position, while the reverse action is achieved by relieving of fluid, assisted by the compression springs (7) via the same supply pipe and by 5 the use of a suitable three way flow connector.
8. A dynamic boat pitch and roll trim system by alteration of the hull water flow as in any one of claims 1 to 7 wherein the system constitutes a unit capable of being produced in any desirable length since its design makes it possible for that dimension. io
9. A dynamic boat pitch and roll trim system by alteration of the hull water flow like in any one of claims 1 to 8 wherein due to being in the form of a compact unit, the system is capable of being fixed in small boats which until now could not bear a classic trim system because of the passenger movement through these spaces, so that no injuries are caused whatsoever. 15 7674781_1 (GHMatters) P89190.AU 26/04/16
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GR20090100402A GR20090100402A (en) | 2009-07-20 | 2009-07-20 | Self-bearing ecological system for the dynamic correcting swing of the floating position of a floating means by change of the whole hydrodynamic flow of the hull |
| GR20090100402 | 2009-07-20 | ||
| PCT/GR2010/000030 WO2011010172A2 (en) | 2009-07-20 | 2010-07-19 | Self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2010274699A1 AU2010274699A1 (en) | 2012-02-02 |
| AU2010274699B2 true AU2010274699B2 (en) | 2016-05-19 |
Family
ID=43085674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2010274699A Active AU2010274699B2 (en) | 2009-07-20 | 2010-07-19 | Self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20120125246A1 (en) |
| EP (1) | EP2456660B1 (en) |
| CN (1) | CN102596709A (en) |
| AU (1) | AU2010274699B2 (en) |
| BR (1) | BR112012001019B1 (en) |
| ES (1) | ES2560524T3 (en) |
| GR (1) | GR20090100402A (en) |
| WO (1) | WO2011010172A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150044215A (en) * | 2013-10-16 | 2015-04-24 | 현대중공업 주식회사 | Passive anti-rolling tank |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6182596B1 (en) * | 2000-03-03 | 2001-02-06 | Robert K. Johnson | System for minimizing the effects of shock and vibration in a high speed vessel |
| CN101342933A (en) * | 2008-08-19 | 2009-01-14 | 谭业堂 | Shock damper for boat |
| WO2009082829A2 (en) * | 2007-12-31 | 2009-07-09 | Mueller Peter A | Variable overall hull lengths for watercraft |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3628487A (en) * | 1970-01-19 | 1971-12-21 | Charles H Bennett | Hydraulically operated trim attachment for powerboats |
| US3777694A (en) * | 1972-07-13 | 1973-12-11 | Levellers A M & I Ltd | Automatic device for trimming vessels |
| US4261278A (en) * | 1979-12-17 | 1981-04-14 | Gaudin George C | Gyro-controlled pitch stabilizing system |
| FR2657581A1 (en) * | 1990-01-26 | 1991-08-02 | Moulin Olivier | Flexible or articulated nautical suspension damper |
| CN2526373Y (en) * | 2002-01-16 | 2002-12-18 | 张大雄 | In-line valve type toilet |
| CN100451354C (en) * | 2004-07-15 | 2009-01-14 | 卢才美 | Hydraulic cylinder and lifting hydraulic cylinder for oil pressure and water pressure |
| WO2011142870A2 (en) * | 2010-02-18 | 2011-11-17 | Morvillo Robert A | Variable trim deflector system and method for controlling a marine vessel |
-
2009
- 2009-07-20 GR GR20090100402A patent/GR20090100402A/en unknown
-
2010
- 2010-07-19 BR BR112012001019-0A patent/BR112012001019B1/en active IP Right Grant
- 2010-07-19 US US13/377,860 patent/US20120125246A1/en not_active Abandoned
- 2010-07-19 AU AU2010274699A patent/AU2010274699B2/en active Active
- 2010-07-19 EP EP10745675.8A patent/EP2456660B1/en active Active
- 2010-07-19 WO PCT/GR2010/000030 patent/WO2011010172A2/en active Application Filing
- 2010-07-19 CN CN2010800327704A patent/CN102596709A/en active Pending
- 2010-07-19 ES ES10745675.8T patent/ES2560524T3/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6182596B1 (en) * | 2000-03-03 | 2001-02-06 | Robert K. Johnson | System for minimizing the effects of shock and vibration in a high speed vessel |
| WO2009082829A2 (en) * | 2007-12-31 | 2009-07-09 | Mueller Peter A | Variable overall hull lengths for watercraft |
| CN101342933A (en) * | 2008-08-19 | 2009-01-14 | 谭业堂 | Shock damper for boat |
Also Published As
| Publication number | Publication date |
|---|---|
| GR20090100402A (en) | 2011-02-18 |
| BR112012001019B1 (en) | 2020-12-29 |
| ES2560524T3 (en) | 2016-02-19 |
| BR112012001019A2 (en) | 2016-03-15 |
| WO2011010172A2 (en) | 2011-01-27 |
| WO2011010172A3 (en) | 2012-05-03 |
| EP2456660B1 (en) | 2015-10-28 |
| CN102596709A (en) | 2012-07-18 |
| AU2010274699A1 (en) | 2012-02-02 |
| US20120125246A1 (en) | 2012-05-24 |
| EP2456660A2 (en) | 2012-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR910700101A (en) | Showerhead for washing table regulator | |
| EP2161450A1 (en) | Water hammer driven air compressor | |
| ITTO20050710A1 (en) | SYSTEM TO REDUCE THE ROLL OF A BOAT | |
| SI1785618T1 (en) | Fuel cooling system for internal combustion engines | |
| AU2010274699B2 (en) | Self contained ecological dynamic boat pitch and roll trim system by alteration of the hull water flow | |
| CN110936308A (en) | Triangular positioning inner sleeve type support | |
| CN202646726U (en) | Axial-flow type multistage decompression anti-cavitation adjusting valve | |
| KR100859332B1 (en) | Steering gears having multi hydraulic supply structure | |
| GR1005219B (en) | Seawater desalinization device and arrangement | |
| CN203428015U (en) | Sliding watertight rudder carrier device | |
| CN2767727Y (en) | Big flow reversing valve | |
| CN100422612C (en) | Safety structure of l pressure-reducing valve | |
| CN100451354C (en) | Hydraulic cylinder and lifting hydraulic cylinder for oil pressure and water pressure | |
| US3468278A (en) | Boat leveler mechanism piston construction | |
| CN204878129U (en) | Test bed | |
| CN208196687U (en) | A kind of side's barge spike clamping device | |
| CN201228808Y (en) | Ball-cock | |
| CA1108007A (en) | Pumps | |
| CN221145410U (en) | Anti-blocking type two-way check valve | |
| CN204921520U (en) | Cushion valve | |
| US20230074132A1 (en) | Cassette assembly, waterborne vessel and method of servicing a water-accessible structure | |
| CN102588241A (en) | Concrete pump and pumping mechanism thereof | |
| CN215693201U (en) | Energy recovery device and seawater desalination equipment | |
| DE102011102676A1 (en) | Water waves or sea waves-operated pump for generating electricity, has two piston pumps with cylinders fixed at floating body, where piston pumps have piston rods fixed at counterweight | |
| CN116946317A (en) | Anti-collision ship |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) |