Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63H—MARINE PROPULSION OR STEERING
  • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63H—MARINE PROPULSION OR STEERING
  • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
  • B63H5/02—Arrangements on vessels of propulsion elements directly acting on water of paddle wheels, e.g. of stern wheels

Definitions

• the present invention relates to an acceleration system for a link belt mounted ship, and more particularly to an acceleration system for a link belt mounted ship comprising a center buoyancy tank centrally mounted at the body of the ship, both side buoyancy tanks mounted at both sides of the ship body, a link belt formed at the outer peripheral surface thereof with blades, and water wheels.
• ships are water transportation means for transporting people, various cargo, and the like.
• the ships are constructed to be propelled and steered by a propelling power, which is obtained as a screw of the ship, immersed under water, operates to expel the water while rotating by receiving a driving force transmitted from a power source through a transmission shaft.
• the power source for the ships is selected from among an internal combustion engine, steam engine, electric motor, and the like.
• the screw connected to the motor through the transmission shaft is located at the stern of the body of the ship, and adapted to propel the ship forward or backward while rotating by using the driving force of the motor.
• the screw further causes a steering plate installed at the stern of the ship to operat, thereby allowing traveling directions of the ship to be varied.
• Such screw and steering plate are controlled from a steering house or the like, and the traveling direction and speed of the ship are determined according to the rotation direction and speed of the screw.
• they should be principally propelled by rotation energy of the screw caused by the motor as well as water current energy.
• the water current energy is generated as the rotating screw expels the water thus generating backward water currents.
• the generated water currents are actually dissipated without affecting the propulsion of the ship. Therefore, the conventional ships have a difficulty of increasing their propelling power over a predetermined value.
• a Korean Patent Laid-open No. 2000-0039958 discloses a hydraulic driven type propulsion device for use in a ship, which is attached to the stern wall of the ship and has a structure and function for simply performing forward and backward movements of a propeller thereof.
• a closed type hydraulic system circuit configured in such a way that a hydraulic pressure is generated as a hydraulic pump is driven by a high-speed diesel engine of less than 350 horsepower, and the generated hydraulic pressure is supplied to a hydraulic motor, which is installed within a body of the propulsion device and directly connected to the propeller so as to operate it.
• the closed type hydraulic system circuit it is possible to achieve a high-pressure and high-speed operation so that an operating hydraulic pressure reaches 250 atmospheres and the revolutions per minute of the hydraulic motor reaches 2500 rpm, and consequently to adjust an inclination angle of the hydraulic pump within a range of 90 ° upward and downward at a remote place, resulting in a control in the flow of operating fluid.
• the disclosed propulsion device has a disadvantage in that the overall structure thereof is complex, and it has no function for increasing the propelling power thereof by the use of water surface tension and water resistance.
• Korean Patent Laid-open No. 1999-0038271 discloses a ship having a leakage oil collection function using water wheels.
• both at the stem and stern of the ship body are installed water wheels through shafts.
• the water wheels are formed at their outer peripheral surfaces with outwardly protruding blades and adapted to obtain the buoyancy of the ship body and a thrust force as they rotate by receiving a driving force of the ship.
• one of the water wheels installed at the stem of the ship body serves to provide a steering ability using a steering device, and the tube-shaped outer peripheral surfaces of the water wheels are further formed with brushes, in addition to the blades, so as to adsorb leakage oil.
• the adsorbed oil is removed by a scrapper and collected in an oil storage tank.
• 1999-0038271 is somewhat similar to the present invention in that it achieves a propelling power thereof by using the water wheels formed with the blades.
• the disclosed invention does not express an important outstanding feature caused from a link belt of the present invention wherein the link belt is installed to wholly surround around the water wheels and adapted to be accelerated by water resistance and water surface tension, as opposed to being conventionally connected and propelled by a propulsion device. Disclosure of the Invention
• an acceleration system for a link belt mounted ship comprising: a center buoyancy tank centrally mounted inside a body of the ship; both side buoyancy tanks formed at both sides of the ship body, the side buoyancy tanks being fo ⁇ ned at their surfaces facing each other with separation preventing steps, respectively; wheel shafts transversely penetrating front and rear sides of the ship body between both the side buoyancy tanks; water wheels mounted to the wheel shafts, respectively; a link belt surrounding the water wheels located at both ends thereof, the link belt being formed at an outer peripheral surface thereof with hook-shaped blades, which are protruded outward from an outer peripheral surface thereof and spaced apart from one another at regular distances; a plurality of roller shafts located
• the link belt may include a plurality of synthetic fiber pieces, the pieces being formed in an individually assembled structure, as opposed to being fo ⁇ ned in a monolithic structure, connection pins for connecting the synthetic fiber pieces to one another, the hook-shaped blades arranged in double columns at both sides of the link belt, and separation preventing protuberances aligned in series along both side edges of the link belt.
• a plurality of the first upper rollers may be mounted to each one of the upper roller shafts so that they are transversely spaced apart from one another at regular distances
• a plurality of the second lower rollers may be mounted to each one of the lower roller shafts so that they are arranged between adjacent ones mounted to the adjacent lower roller shafts in a zigzag pattern.
• Fig. 1 is a side sectional view illustrating an acceleration system for a link belt mounted ship in accordance with an embodiment of the present invention
• Fig. 2 is a front sectional view illustrating the acceleration system for the link belt mounted ship in accordance with the present invention
• Fig. 3 is a bottom view illustrating the arrangement of second lower rollers in accordance with the present invention
• Fig. 4 is a side sectional view schematically illustrating another embodiment of the present invention wherein plural link belts are mounted
• Fig. 5 is a plan view illustrating the configuration of the link belt in accordance with the present invention
• Fig. 1 is a side sectional view illustrating an acceleration system for a link belt mounted ship in accordance with an embodiment of the present invention
• Fig. 2 is a front sectional view illustrating the acceleration system for the link belt mounted ship in accordance with the present invention
• Fig. 3 is a bottom view illustrating the arrangement of second lower rollers in accordance with the present invention
• Fig. 4 is a side sectional view
• Fig. 6 is a side sectional view schematically illustrating a further another embodiment of the present invention wherein the link belt and water wheels are commonly formed with toothed projections; and Fig. 7 is a plan view schematically illustrating yet another embodiment of the present invention wherein auxiliary wheels are attached to both ends of wheel shafts.
• the acceleration system of the present invention comprises a center buoyancy tank 10, side buoyancy tanks 20, wheel shafts 30, water wheels 40, a link belt 50, a plurality of roller shafts 60, first upper rollers 70, and second lower rollers 80.
• the center buoyancy tank 10 is centrally mounted inside a body 100 of the ship and both the side buoyancy tanks 20 are mounted at both sides of the ship body 100.
• the side buoyancy tanks 20 are formed at their side surfaces facing each other with separation preventing steps 21, respectively.
• the wheel shafts 30 are arranged at front and rear sides of the ship body 100 so as to transversely penetrate the ship body 100 between both the side buoyancy tanks 20, and the water wheels 40 are mounted to the wheel shafts 30, respectively.
• the link belt 50 is adapted to surround the water wheels 40 located at both ends thereof.
• the link belt 50 is formed with a plurality of hook-shaped blades 51, which are protruded outward from the outer peripheral surface of the link belt 50 and spaced apart from one another at regular distances. Between the link belt 50 and the center buoyancy tank 10 are located a plurality of the roller shafts 60.
• the roller shafts 60 consists of upper roller shafts located between the upper surface of the center buoyancy tank 10 and the inner peripheral surface of the link belt 50, and lower roller shafts located between the lower surface of the center buoyancy tank 10 and the inner peripheral surface of the link belt 50.
• the lower roller shafts are spaced apart from one another at a distance shorter than a distance between the upper roller shafts.
• Each of the roller shafts 60 is fixed at both ends thereof to a pair of brackets 22 attached to the facing side surfaces of both the side buoyancy tanks 20.
• a plurality of the first upper rollers 70 are rotatably mounted to the upper roller shafts among the roller shafts 60.
• the link belt 50 comprises a plurality of synthetic fiber pieces 52, which are formed in an individually assembled structure as opposed to being fo ⁇ ned in a monolithic structure. Therefore, the synthetic fiber pieces 52 are connected to one another by the use of connection pins 53.
• the hook-shaped blades 51 of the link belt 50 are arranged in double columns at both sides of the link belt 51 in a longitudinal direction.
• the link belt 50 further comprises separation preventing protuberances 54 aligned in series along both side edges of the link belt 51.
• both the side buoyancy tanks 20 are formed at lower portions of their surfaces facing each other with inclined portions K, respectively. These inclined portions K serve to converge water pressure into an inner space defined between both the side buoyancy tanks 20 without generating any massive waves at the outer sides of the side buoyancy tanks 20, thereby causing an increase in water surface tension related to the surface of the link belt 50 within the inner space.
• both the side buoyancy tanks 20 are formed along outer lower end portions thereof with outwardly extending protrusions P, respectively.
• the protrusions P serve to minimize a friction coefficient related to outer surfaces S of both the side buoyancy tanks 20.
• a plurality of the link belts 50 are arranged in a longitudinal direction of the ship body 100 to have a constant inclination angle, respectively. This arrangement enables the acceleration system of the present invention to be effectively applied to large-scale ships.
• the link belt 50 is formed at their inner peripheral surface with first toothed projections 55, and the water wheels 40 are formed at their outer peripheral surfaces with second toothed projections 41.
• the first and second toothed projections 55 and 41 are rotatably engaged with each other.
• Fig. 7 illustrating yet another embodiment of the present invention implemented in a timing belt type
• the link belt 50 has a tendency of remaining at its original position without sliding due to the influence of water resistance generated by virtue of the blades 51 formed at the outer peripheral surface thereof.
• the ship body 100 is subjected to strong water resistance at both sides thereof. The strong water resistance causes the link belt 50 to rotate toward the stern of the ship body 100.
• the second lower rollers 80 are densely arranged in a zigzag pattern so as to completely prevent the surface of the link belt 50, strongly affected by water surface tension, from being distorted.
• the second lower rollers 80 are preferably formed to have a minimum diameter within a range not deteriorating their strength and durability.
• the first lower rollers 70 can be spaced apart from one another at relatively wide gaps by virtue of the fact that no special loads are applied thereto.
• the center buoyancy tank 10 and both the side buoyancy tanks 20 are formed with appropriate water draft portions, respectively, and variable in their sizes so as to continuously prevent the first upper rollers 70 from being immersed in the water.
• the link belt mounted ship of the present invention When the link belt mounted ship of the present invention travels at less than ten knots, the first upper rollers 70 and second lower rollers 80 may be remained without rolling, but if the ship travels by a speed exceeding the above value, the blades 51 of the link belt 50 are strongly subject to water resistance, thereby causing the link belt 50 to show a tendency of remaining at its original non-operating position. As the traveling speed of the ship increases further, the overall surface of the link belt 50 is strongly subject to water surface tension, resulting in a gradual rising of the ship body 100. Now, the operation of the present invention will be explained. The link belt mounted ship of the present invention is accelerated in the following manner.
• a screw 2 installed at the stern of the ship rotates according to the driving operation of a propulsion device 1 so as to provide a propelling power to the body 100 of the ship.
• the first upper rollers 70 and second lower rollers 80 perform rolling operation thereof, and then the water wheels 40 are rotated due to water resistance applied to both sides of the ship body 100 as the propelling power is increased, thereby causing the link belt 50 connected with the water wheels 40 to rotate toward the stern of the ship body 100.
• the blades 51 of the link belt 50 are subject to stronger water resistance and the link belt 50 is strongly affected by water surface tension, resulting in a gradual rising of the front side of the ship body 100 and accordingly an acceleration of the ship. That is, in a state wherein the link belt 50 is intended to maintain its original non-operating position without sliding, the ship body 100 is advanced due to the strong propelling power applied to the stern of the ship body 100, and the first upper and second lower rollers 70 and 80 located inside the ship body 100 perform rolling operations on the link belt 50, which is strongly affected by water surface tension and water resistance.
• the present invention provides an acceleration system for a link belt mounted ship, which is configured to maximize the speed of the ship by the use of a propelling power generated by a certain propulsion device thus reducing consumption of fuel.
• the link belt of the present invention can be easily replaced by divers even in the water, and water wheels of the present invention do not need any lubrication and cooling processes since a part of them are continuously immersed under the water.
• the present invention is suitable for military ships requiring high-speed, in addition to leisure ships, lifesaving boats and high-speed passenger ships.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• Ocean & Marine Engineering (AREA)
• Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
• Hydraulic Turbines (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=34374177

Family Applications (1)

Country Status (3)

Cited By (1)

Families Citing this family (1)

Citations (3)

• 2003
  • 2003-09-25 KR KR10-2003-0066642A patent/KR100471689B1/ko not_active IP Right Cessation
  • 2003-10-13 WO PCT/KR2003/002108 patent/WO2005028301A1/en active Application Filing
  • 2003-10-13 AU AU2003269526A patent/AU2003269526A1/en not_active Abandoned

Patent Citations (3)

Also Published As

Similar Documents

Legal Events