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EP2096028A2 - Bateau à moteur rapide ou embarcation à grande vitesse avec coque dynamique - Google Patents

Bateau à moteur rapide ou embarcation à grande vitesse avec coque dynamique Download PDF

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Publication number
EP2096028A2
EP2096028A2 EP09002502A EP09002502A EP2096028A2 EP 2096028 A2 EP2096028 A2 EP 2096028A2 EP 09002502 A EP09002502 A EP 09002502A EP 09002502 A EP09002502 A EP 09002502A EP 2096028 A2 EP2096028 A2 EP 2096028A2
Authority
EP
European Patent Office
Prior art keywords
engine
watercraft
shell
vehicle
axis
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.)
Withdrawn
Application number
EP09002502A
Other languages
German (de)
English (en)
Other versions
EP2096028A3 (fr
Inventor
Rajesh Gaonjur
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2096028A2 publication Critical patent/EP2096028A2/fr
Publication of EP2096028A3 publication Critical patent/EP2096028A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/04—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction
    • 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
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • B63B1/047—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull with spherical hull or hull in the shape of a vertical ring

Definitions

  • This invention relates to a vehicle that is meant to move at very high speed on the surface of liquid element, such as seas or lakes, for the purpose of leisure, sport, travel, and other activities.
  • the vehicle can be called a type of speedboat, in spite of the lack of resemble to a conventional speedboat.
  • the vehicle can also be designed amphibious in order to move on most solid surfaces.
  • Vehicles such as ships, boats, speedboats, rafts, etc (In particular, all vehicles of the type that are in contact with the liquid element) are able to move on the surface of liquid element, by overcoming the resistance that opposes the motion of these vehicles.
  • the resistance is mainly due to the viscous forces between the immersed part of the vehicle and the liquid element.
  • the object of this invention is to provide for such a vehicle, which is less affected by these inconveniences, hence, making it possible to travel safely and economically on the surface of liquid element at much higher speed.
  • this invention provides for a vehicle, where the resistance due to the viscous forces, increases less rapidly with speed, than it is usually the case with conventional boats.
  • the immersed part of the vehicle include a dynamic body or components, which interacts with the viscous liquid element in such a way that it reduces the viscous forces that oppose the motion of the vehicle and, produces a reaction force on the body of the vehicle, causing it to move in the direction of the force.
  • the dynamic body which is in contact with the liquid element, consists of a large hollow spheroid object which constitutes the hull and spins about a horizontal axis.
  • the viscous forces between the spinning external surface of the object and the liquid element cause the forward movement of the vehicle.
  • Stability of the vehicle is ensured by a low center of gravity and the inertia of the rotating object that increases with the speed of the vehicle.
  • the vehicle consists of three main components. They are labeled as: the shell 1; the engine 2; and the tail 3, for convenience of description.
  • the dynamic body resembles a shell and for that reason is referred as the shell 1.
  • It is a large hollow object, which rest on the surface S of the liquid element. It has high buoyancy, so that only a relatively small potion of it is immersed in the liquid. It is made of light but strong material so as to withstand shock and resist deformation.
  • the shell 1 is preferably transparent or includes transparent windows placed uniformly along its perimeter, so that the pilot and passengers seated inside the shell 1 can see through, in order to navigate and look around.
  • the section of the shell 1 is circular, as shown in figure 1 .
  • the axis O passes through the center of the shell 1 and is normal to the side elevation and the direction of motion of the vehicle
  • the viscous forces between the immersed part of the shell and the liquid element cause the vehicle to move horizontally in a direction, opposite to the movement of the shell at the points of contact on the surface of the liquid element.
  • the shell 1 spins about the axis O, it rolls on the surface of the liquid element.
  • the vehicle may consist of an assembly of several shells 1, but this ultimately affects the stability of the vehicle at high moving speed.
  • the vehicle consists of a single shell 1 or at the most, two separate objects on either side of the output shaft of the engine 2.
  • the shape of the shell 1 could be spherical, as this shape offers a high stability in all direction, especially when the center of gravity is low.
  • a shell 1 in the shape of a doughnut or a disk, as shown in figure 3 , or even a thin cylinder, is preferred as it offers less resistance to air during forward movement.
  • the engine 2 is lodged inside the shell 1.
  • the output shaft of the engine 2 lies on the same axis O and connects to either side of the internal parts of the shell 1, by appropriate supports.
  • the engine 2, which is the heaviest component, hangs downward from the axis O.
  • the output shaft of the engine 2 drives the shell 1 in rotation about axis O, freely without any mechanical obstruction.
  • the external surface of the shell 1 is equipped with an appropriate number of blades or paddles 4 of suitable size around the whole perimeter at regular intervals. This ensures high viscous forces with the liquid element as the shell 1 spins about axis O.
  • the blades 4 may include such features that allow them to protrude from the surface of the shell 1 only when they are immersed in the liquid element. These blades 4 may include other features that allow them to retract inside the shell, so that the vehicle can move on dry surface without causing damage to the blades 4.
  • the engine 2 includes all subcomponents such as: the motor; the fuel reservoir and batteries; the transmission gears; the output shaft; the pilot and passenger cabin; and other navigational and control equipment.
  • the subcomponents are arranged in such a way that the center of gravity is the furthest away from the output shaft.
  • the engine 2 would usually be the heaviest component, in comparison to the other two components 1 and 3, combined.
  • the engine 2 hangs downward with its center of gravity vertically below the axis O.
  • the very low center of gravity gives the vehicle a good vertical stability as it floats on the external surfaces of the shell 1.
  • the vehicle may oscillate and sway in all directions because of the turbulent surface of the liquid, it will not capsize.
  • the stability improves further with the speed, due to the inertia of the shell 1 spinning at full speed.
  • the low center of gravity of the engine 2 provides some of this counter-torque.
  • the engine 2 also starts to rotate in the opposite direction about axis O.
  • the weight of the engine 2 produces a counter-torque, which is proportional to the horizontal distance from the center of gravity of the engine 2, to the vertical axis passing through the center of the shell 1.
  • the magnitude of the counter-torque equals the magnitude of the torque delivered by the engine 2 to the shell 1
  • the engine 2 stops rotating.
  • the counter-torque reaches a maximum, when the angle of inclination of the center of gravity of the engine 2 about axis O, to the vertical is 90 degrees. As this method may not provide all the counter-torque necessary to prevent the engine 2 from rotating, additional counter-torque is provided by the tail 3.
  • the main components of the tail 3 are shown in figure 4 and figure 5 . It consists of a rigid and strong pair of extension rods 5, which acts as a lever arm and connects a pair of primary wings 6 located at the back of the vehicle, solidly to the frame of the engine 2 at the axis O.
  • the underside of each primary wing 6 includes a rudder 7.
  • the extension rods 5 are also joined together on the side of the wings 6, by a transversal rod 8, so that the tail 3 forms a rigid structure.
  • the tail 3 may include a pair of secondary wings 9, connected solidly to the extension rods 5, at the front.
  • the section of the wings 6 is designed in the shape of an aerofoil or inclined at an appropriate angle, so as to produce a vertical uplift when the vehicle moves forward.
  • the vertical uplifts on the wings 6 provide a counter-torque on the engine 2, by the level arm action of the extension rods 5, about axis O.
  • the right amount of counter-torque needed to prevent rotation of the engine 2 is obtained by adjusting the magnitude of the uplifts on the wings 6, and this is usually done by changing the geometry of the wings 6 such as, modulating the angle of deflection of the wings 6 or flaps incorporated in the wings 6.
  • the wings 6 or wings 9 are also used to steer the vehicles at cruising speed, just like aircrafts. For example, if the uplift on the left wings or the drag force of the right wings were increased, the axis of spin of the shell 1 would tilt to the right causing the vehicle to turn to the right, and vise versa
  • the extension rods 5 also include such features that enable the wings 6 to be lowered, so that they trail on the surface of the liquid or to be raised above the surface of the liquid as required. Each time the extension rods 5 are adjusted to a new position, they are firmly secured to the frame of the engine 2.
  • the wings 6 When the vehicle is at rest or is moving slowly, as shown in figure 6 , the wings 6 (which are made buoyant) are lowered so that they float and trail on the surface of the liquid, as shown in figure 6 .
  • the rudders 7 dip under the surface of the liquid.
  • a pair of wheel is provided at the lower tips of the rudder 7, so as to prevent the wings from trailing on hard surfaces and getting damaged.
  • the pair of rudder 7, or the wheels allows steering of the vehicles at low speed when the aerodynamic method of steering is not efficient.
  • the reaction of the liquid on the primary wings 6, as they trail on the surface of the liquid also provides a strong counter-torque on the engine 2. This may be use to advantage during acceleration phase when the engine 2 delivers high starting torque, for the vehicle to reach cruising speed rapidly.
  • the wings 6 may then be raised out of the liquid, as the vehicle gathers sufficient speed and can rely entirely on the aerodynamic uplifts on the wings 6.
  • the optional pair of secondary wings 9 does not usually provide any uplift during normal cruising. It main purpose is to stabilize the vehicle whenever it bounces over the turbulent liquid surface. On such occasion, the secondary wings 9 are quickly deflected so as to produce uplift. The uplifts on the primary wings 6 and the secondary wings 9 are automatically readjusted so as to rebalance the forces acting on the vehicle, in such a way that, the vehicle could touch down as smoothly as possible and resume it movements on the surface of the liquid element.
  • the pilot cabin and the passengers are found somewhere in the engine 2. Access trap needs to be provided on the side of the shell 1 for the passengers to gain access to the cabin.
  • the pilot cabin would resemble the cockpit of an airplane and is well insulated from the external environment.
  • the pilot commands from his seat all the systems on board.
  • a GPS guided system and automatic anti-collision system should be some of the basic equipment, so as to cruise long distances safely and on automatic mode, similar to aircrafts.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transmission Devices (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP09002502A 2008-02-26 2009-02-23 Bateau à moteur rapide ou embarcation à grande vitesse avec coque dynamique Withdrawn EP2096028A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MU8608 2008-02-26

Publications (2)

Publication Number Publication Date
EP2096028A2 true EP2096028A2 (fr) 2009-09-02
EP2096028A3 EP2096028A3 (fr) 2012-05-02

Family

ID=40786525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09002502A Withdrawn EP2096028A3 (fr) 2008-02-26 2009-02-23 Bateau à moteur rapide ou embarcation à grande vitesse avec coque dynamique

Country Status (1)

Country Link
EP (1) EP2096028A3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105953959A (zh) * 2016-06-16 2016-09-21 浙江迅鲨动力设备有限公司 舷外机水下试验台
CN111204417A (zh) * 2020-02-27 2020-05-29 北京大学 一种微型光控漂浮载具及其光控制方法
US20220348049A1 (en) * 2021-04-30 2022-11-03 Zhenkun Wang Multi-functional vehicle autonomously operable under multi-terrain conditions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB251869A (en) * 1925-11-02 1926-05-13 Andrew Young Vaned wheel propeller for light naval craft
US3251334A (en) * 1964-04-16 1966-05-17 Melville W Beardsley Marine craft propulsion system
DE102005005142B4 (de) * 2005-02-04 2013-07-18 Thomas Hauck Zentrifugalarbeitsmaschine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105953959A (zh) * 2016-06-16 2016-09-21 浙江迅鲨动力设备有限公司 舷外机水下试验台
CN105953959B (zh) * 2016-06-16 2019-01-18 浙江迅鲨动力设备有限公司 舷外机水下试验台
CN111204417A (zh) * 2020-02-27 2020-05-29 北京大学 一种微型光控漂浮载具及其光控制方法
US20220348049A1 (en) * 2021-04-30 2022-11-03 Zhenkun Wang Multi-functional vehicle autonomously operable under multi-terrain conditions
US12122202B2 (en) * 2021-04-30 2024-10-22 Zhenkun Wang Multi-functional vehicle autonomously operable under multi-terrain conditions

Also Published As

Publication number Publication date
EP2096028A3 (fr) 2012-05-02

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