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US20070034129A1 - Watercraft provided with two floating bodies stacked on top of each other - Google Patents

Watercraft provided with two floating bodies stacked on top of each other Download PDF

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Publication number
US20070034129A1
US20070034129A1 US10/572,510 US57251004A US2007034129A1 US 20070034129 A1 US20070034129 A1 US 20070034129A1 US 57251004 A US57251004 A US 57251004A US 2007034129 A1 US2007034129 A1 US 2007034129A1
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US
United States
Prior art keywords
floating body
floating bodies
damping
watercraft
damping device
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.)
Abandoned
Application number
US10/572,510
Other languages
English (en)
Inventor
Peter Mueller
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.)
Supraventures AG
Original Assignee
Supraventures AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Supraventures AG filed Critical Supraventures AG
Assigned to SUPRAVENTURES AG reassignment SUPRAVENTURES AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MUELLER, PETER A.
Publication of US20070034129A1 publication Critical patent/US20070034129A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/0081—Vibration isolation or damping elements or arrangements, e.g. elastic support of deck-houses
    • 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

Definitions

  • the invention relates to a watercraft.
  • a watercraft i.e., boats and yachts
  • a lower section called the hull
  • the hull is dimensioned to have an appropriate wall height and wall thickness so as to resist strong wave action or grounding, and to allow as little water as possible to come over the deck.
  • the upper section of the watercraft, called the deck is a closing component of the hull and includes infrastructure for the watercraft, including living quarters and a helm, and an appropriate seal against the intrusion of water into the hull.
  • a propeller system is connected directly to the hull and includes a propeller bracket, Z-drive, jet drive, or outboard motor, rudder, motor cooling elements, and exhaust pipes.
  • the hull and deck are usually glued, riveted or screwed together at the level of a sheer rail, with parts that join the hull and deck being elegantly concealed by the sheer rails.
  • a known aspect of watercraft is the fact that vibrations and oscillations caused by mechanical components and by wave action are transmitted to the entire watercraft shell, the latter acting as a giant resonance chamber. Simply placing the motor and transmission on rubber mounts partially reduces vibrations and oscillations.
  • the invention thus provides, among other things, a reliable damping function and leveling of a watercraft.
  • a watercraft includes at least two floating bodies; a drive device that drives the at least two floating bodies; and a control device that controls at least the drive device, wherein the at least two floating bodies are stacked, the at least two floating bodies are connected by at least one connecting device, at least one damping device is located between the at least two floating bodies, and an intermediate space between the at least two floating bodies is sealed by a sealing device.
  • the hull section (the lower floating body) that has to bear the main hydrodynamic buoyancy function, load, and vibrations and oscillations generated by the machinery, as well as wave impacts, is isolated and is designed as an independent floating body that accommodates the motor, transmission, control elements, attachment device, etc.
  • the second hull section (the upper floating body) is also designed as a separate floating body and performs secondary hydrodynamic functions, such as, for example, lateral routing of the water flow, as well as providing a living and work compatible space for the crew of the watercraft.
  • the second upper hull section is attached in a saddle-mountable fashion via movable attachment elements to the lower floating body, the two floating bodies having a damping device between the two sections as well as a seal between the two sections to prevent water from impairing the damping function.
  • Both bodies have a flexible coupling device that easily enables the power supply, electrical signals, steering device, motor power device, and reversing device to be interconnected.
  • Having two independent floating bodies not only enhances vessel safety but also provides a simple and cost effective way of limiting any vibrations and oscillations caused, for example, by the motor, transmission, and propeller to a defined space while as much as possible decoupling the space from the remaining space.
  • other initiators of vibration and oscillations such as wave impacts and possible propeller cavitation impacts are also not transmitted to the entire watercraft.
  • the two stacked floating bodies possess an elastic device that acts as a damping medium.
  • This can be a compressible medium such as, for example, a rubber element or fillable expanding body, or a shock absorber system similar to those known from the automotive field.
  • Damping can be controlled either passively or actively by an appropriate electronic system, wherein in the case of active damping, the optimum damping rate is computed and adjusted by sensors. Active damping also allows the damping travel distance to be controlled such that the upper floating body can be raised so as to receive less spray from the water, or lowered in order to present the smallest possible profile to the wind.
  • the vibration damping can be made more sophisticated by having two individual control systems, a primary and a secondary system, such that the two control circuits communicate with each other so as to implement the best damping.
  • the lower floating body control system primarily controls hydrodynamic motion, for example, via trimming and stabilizing flaps or side stabilizing fins, propeller drive angle adjustment, etc.
  • the upper floating body control system implements control, for example, through vertically acting hydraulic or pneumatic elements to ensure the most stable, horizontally oriented upper floating body.
  • a passive or active horizontal damping device can be used to filter impacts occurring on the lower floating body when entering waves, thereby further enhancing comfort in the upper section.
  • At least one movable and guided connecting element is present between the two body units so that the watercraft, comprising the lower floating body and the upper floating body, is held together, and so that they are moved neatly parallel to each other.
  • the connecting element can also include a more complex, for example, cardan-type suspension system.
  • a seal of the intermediate space between the lower floating body and the upper floating body is required for the damping function to work properly. If water would collect in the intermediate space between the lower floating body and upper floating body, damping could no longer be ensured since the water is not compressible and must first be forced out to allow for a damping effect between the components. In response to a relief of damping, a vacuum might result, and water would be sucked into the intermediate space, thereby causing the watercraft to take on additional weight. For this reason, a circumferential, elastic and secure seal provided by an appropriate sealing device is a component of a reliably functioning damping device.
  • a suitable bilge pump ensures that even in the event of minor damage to the seal, any intrusion of water would be automatically expelled from the intermediate space.
  • a relieving line allows the volume differential in the intermediate space to be compensated during the damping process.
  • FIG. 1 is a side view of a watercraft that has a lower floating body separated from an upper floating body;
  • FIG. 2 is a side view of a watercraft ready for operation that has the lower floating body connected to the upper floating body;
  • FIG. 3 shows a horizontally acting damping device
  • FIG. 4 is a rear view of a seal relevant for damping located between the lower floating body and the upper floating body;
  • FIG. 5 is a front view of the seal relevant for damping located between the lower floating body and the upper floating body.
  • FIG. 6 is a sectional view of the seal relevant for damping.
  • FIG. 1 shows a watercraft comprising a lower floating body 1 , an upper floating body 2 , a motor 3 , a drive unit 4 , and a steering/control device 6 , in a separated state.
  • the lower floating body 1 of the watercraft can be hydrodynamically optimized for a specified load and travel speed.
  • the upper floating body 2 is placed over the lower floating body 1 and can have any appropriate recess to meet the space requirements for the motor 3 , living space, working space, a holding device 5 , and the steering/control device 6 .
  • the lower floating body 1 serves primarily as the main buoyancy body and preferably has an overall height that approximately corresponds to a level of the waterline when the watercraft is in the loaded state.
  • a situation may arise in which a drive motor, and possibly the fuel tank, project above the waterline, with the result that these elements will need to be protected from possible contact with the water by an appropriately higher side wall.
  • FIG. 2 shows a watercraft ready for operation, wherein the lower floating body 1 , that houses the motor 3 , the drive unit 4 , and a fuel tank 9 , is connected to the upper floating body 2 by guide elements 7 , attachment points 8 , and damping devices (a passive damping device 10 and an active damping device 11 , for example).
  • damping devices a passive damping device 10 and an active damping device 11 , for example.
  • a sealing device 12 (which is an example of another damping device) is shown that seals off an intermediate space 14 from seawater and foreign bodies, the intermediate space 14 having an air exchanging device 15 and a bilge pump 16
  • the attachment of the lower floating body 1 to the upper floating body 2 is effected through the damping devices so that motor vibrations and oscillations, in addition to wave impacts, drive-unit vibrations, or propeller vibrations, are isolated from the upper floating body 2 .
  • the damping can be effected either by a passive damping device 10 , such as an elastically compressible device or inflatable tubes, or by an active pneumatic or hydraulic damping device 11 that can additionally be controlled by an electronic system.
  • the active filling of the active damping device 11 enables the upper floating body 2 to be set higher or lower as required, while also allowing the damping travel to be increased or decreased independently.
  • the flexible coupling device 13 connects all technical devices related to making the watercraft operationally ready, the majority of which leads to the steering/control device 6 , such as electric lines for the motor instrument displays, control lines for the trimming and stabilizing flaps, side thrusters, additionally separate power for the galley, cabin illumination, external markers of the watercraft, etc., as well as the mechanical connections such as, for example, transmission reversal, motor power and rudder function control.
  • the steering/control device 6 advantageously includes the steering, power lever, transmission, displays, and actuators for the technical devices such as the trimming and stabilizing flaps, propeller adjustment, and the side thruster.
  • the control commands and other functions indicated above may, if required, also be transmitted wirelessly, by radio; for example, between the two floating bodies.
  • FIG. 3 shows a horizontally fixed passive damping device 10 and active damping device 11 that are attached on one end to the lower floating body 1 by an attachment point 8 , and on the other end to upper floating body 2 similarly by another attachment point 8 .
  • FIGS. 4 and 5 illustrate the central sealing device 12 for the damping function between the lower floating body 1 and the upper floating body 2 .
  • the sealing device 12 in order to prevent the admission of both water, since this medium is incompressible and would therefore impair the damping function, and foreign bodies, such as mud and seal creatures, into an intermediate space 14 between the lower floating body 1 and the upper floating body 2 , the sealing device 12 , for example, includes a circumferential band that has been applied.
  • the sealing device 12 can be designed so that it is able also to participate in the process given active leveling, for example, when large height differences are set between the lower floating body 1 and the upper floating body 2 .
  • a relieving line in the form of an air exchanging device 15 allows for an exchange of air between the intermediate space 14 and the outer environment (atmosphere), and can also be employed for the function of the bilge pump 16 in response to an unwanted admission of water.
  • FIG. 6 shows the sealing device 12 and the connection of the two floating bodies 1 , 2 in detail.
  • the sealing device 12 here is designed, for example, in tubular form and is thus able to compensate for movements made by the two floating bodies 1 , 2 relative to each other.
  • the sealing device 12 can at the same time be employed as the passive damping device 10 .
  • the tubular sealing device 12 can be filled with air such that damping is able to be adjusted via the pressure, with the result that active damping can be generated even in the event of changes in the pressure during operation.
  • the lower floating body 1 is connected to the upper floating body 2 by the guide elements 7 , attachment points 8 , a guide device 17 and a stop 18 .
  • the ability of the two floating bodies 1 , 2 to move relative to each other is limited by the guide device 17 and the stop 18 .
  • An additional passive damping device 10 can be advantageously located between the guide device 17 and the stop 18 , thereby further damping the motion. It is of course also possible to design the sealing device 12 as a skirt or in a different form.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Vibration Prevention Devices (AREA)
US10/572,510 2003-09-17 2004-09-15 Watercraft provided with two floating bodies stacked on top of each other Abandoned US20070034129A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH15872003 2003-09-17
CH1587/03 2003-09-17
PCT/CH2004/000582 WO2005025980A1 (fr) 2003-09-17 2004-09-15 Navire presentant deux corps flottants superposes

Publications (1)

Publication Number Publication Date
US20070034129A1 true US20070034129A1 (en) 2007-02-15

Family

ID=34280711

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/572,510 Abandoned US20070034129A1 (en) 2003-09-17 2004-09-15 Watercraft provided with two floating bodies stacked on top of each other
US11/905,832 Abandoned US20080029007A1 (en) 2003-09-17 2007-10-04 Watercraft provided with two floating bodies stacked on top of each other

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/905,832 Abandoned US20080029007A1 (en) 2003-09-17 2007-10-04 Watercraft provided with two floating bodies stacked on top of each other

Country Status (2)

Country Link
US (2) US20070034129A1 (fr)
WO (1) WO2005025980A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115583308A (zh) * 2022-09-26 2023-01-10 中国舰船研究设计中心 船舶用存储舱室
WO2024069190A3 (fr) * 2022-09-30 2024-05-10 Mathwall Engineering Limited Suspension pour véhicule aquatique

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8261684B2 (en) * 2009-02-06 2012-09-11 Werner Todd C Shock absorbing cockpits
US10106225B1 (en) 2014-08-29 2018-10-23 Bombardier Recreational Products Inc. Hull for a watercraft
WO2016138578A1 (fr) * 2015-03-04 2016-09-09 Professional Components Ltd. Plate-forme marine suspendue
DE102015112236B4 (de) 2015-07-27 2023-11-16 Rheinmetall Landsysteme Gmbh Gefechtsfahrzeug, ausgebildet als Amphibienfahrzeug
DE102015112237B4 (de) 2015-07-27 2023-11-16 Rheinmetall Landsysteme Gmbh Amphibienfahrzeug
CN108674590B (zh) * 2018-04-10 2020-07-07 周可 一种水上行工具

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3270701A (en) * 1964-10-09 1966-09-06 Kubas Joseph Stabilized watercraft and stabilizer for minimizing pitching and wave shock of small craft
US4531262A (en) * 1981-12-23 1985-07-30 Trutzschler Gmbh & Co. Kg System for blending textile fibers
US5465678A (en) * 1991-11-26 1995-11-14 Ekman; Christer V. Piece of hull for boats and vessels
US6176190B1 (en) * 1999-07-12 2001-01-23 John Ozga Suspension system for a speed boat
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
US6223674B1 (en) * 1996-08-21 2001-05-01 The United States Of America As Represented By The Secretary Of The Navy Gentile performance wedge (GPW) shock mitigation planning boat hull

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351262A (en) * 1980-02-15 1982-09-28 Matthews Leslie N Boat hull
FR2746763B1 (fr) * 1996-03-29 1998-05-15 Moulin Olivier Suspension nautique a propulsion constante

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3270701A (en) * 1964-10-09 1966-09-06 Kubas Joseph Stabilized watercraft and stabilizer for minimizing pitching and wave shock of small craft
US4531262A (en) * 1981-12-23 1985-07-30 Trutzschler Gmbh & Co. Kg System for blending textile fibers
US5465678A (en) * 1991-11-26 1995-11-14 Ekman; Christer V. Piece of hull for boats and vessels
US6223674B1 (en) * 1996-08-21 2001-05-01 The United States Of America As Represented By The Secretary Of The Navy Gentile performance wedge (GPW) shock mitigation planning boat hull
US6176190B1 (en) * 1999-07-12 2001-01-23 John Ozga Suspension system for a speed boat
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115583308A (zh) * 2022-09-26 2023-01-10 中国舰船研究设计中心 船舶用存储舱室
WO2024069190A3 (fr) * 2022-09-30 2024-05-10 Mathwall Engineering Limited Suspension pour véhicule aquatique

Also Published As

Publication number Publication date
US20080029007A1 (en) 2008-02-07
WO2005025980A1 (fr) 2005-03-24

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SUPRAVENTURES AG, LUXEMBOURG

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MUELLER, PETER A.;REEL/FRAME:018536/0773

Effective date: 20061101

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION