JPH0338488A - Air pressure flotation craft equipped with free rotation water wheel - Google Patents

Abstract

PURPOSE:To reduce a water resistance, save a propulsion energy and achieve a high speed run by letting the whole structure of a craft float by an air pressure of a pressure air chamber formed by free rotation water wheels, a top plate and side plates, and propelling it by a separately provided outboard screw unit or the like. CONSTITUTION:Flat side plates 5 parallel to the advance direction are provided down on both sides of a top plate 4 recessed in the middle suitable for having a control chamber, a passenger room 1, a motor 2, etc., and free rotation water wheels 7 having several partition plates 6 having no holes radially provided at its open parts at the front and back are installed perpendicularly to the advance direction. The gaps between the tip plate 4 and the partition plates 6 of the water wheels 7 are set fine. and they are put on a water surface 8, and pressure air produced by an air pressurizing means 9 is blown into their inner space to form a pressure air chamber 10, so the whole structure is let to float on the water surface 8 by the air pressure. It is then propelled by a separately provided outboard screw unit, a jet pump, an air propeller, and a motor 2, a jet engine, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a ship which attempts to run at high speed by reducing water resistance as much as possible and saving propulsion energy.

Conventional Technology Since ancient times, water such as rivers and oceans has been an extremely useful medium for slowly transporting heavy objects. However, once high-speed transportation was attempted, this showed great resistance and became a major barrier. Therefore, various shapes of high-speed boats were studied, and recently, bulbous bows and catamarans were also developed. However, as long as the hull floats on the water and moves forward, it is inevitable that the faster it goes, the more energy it needs to cut through the water and kick the waves. The hovercraft was invented to raise the hull above the water and eliminate water resistance by installing a skirt around the bottom of the hull, blowing pressurized air into it, and using that force to float and run. This is, in a sense, an aircraft. Although this did not result in energy loss due to water resistance, pressurized air escaped freely to the outside through the opening between the lower end of the skirt and the water surface, resulting in a large loss of energy. Therefore, if a practical aircraft were to be several times faster, the freight would have to be several times more expensive.

Problems to be Solved by the Invention The present invention solves the above-mentioned drawbacks; namely, the resistance that the ship's main body receives when it comes into contact with water is reduced to zero by floating in the air, similar to a hovercraft, and the pressurized air for levitation has a certain resistance. Since water resistance is unavoidable, the lower part of the main body is sealed to prevent leakage as much as possible, and to provide a ship that can economically operate at high speed.

Measures to solve the problem Firstly, to prevent the pressurized air used to float the main body of the ship from escaping from the sides, the side plate (5) is parallel to the direction of travel and whose lower end is slightly submerged in the water. will be established. This alone will reduce the escape of pressurized air by half. is not enough.

Second, we have to prevent the back and forth from running away, which is not easy. Of course, placing a flat plate will obstruct progress.

As a result of various studies, we found that there were options such as inward air curtains and water M, but the most effective and practical method was to use several to ten or so partition plates without holes (as shown in Figure 1). The aim was to make the free-rotating water turbine (7) with the water wheel (7) perpendicular to the direction of travel and to make the gap between it and the top plate very small.

Effects of horizontally installed water turbines Generally speaking, the image of a water turbine mounted on a ship gives the impression that it is a representative of inefficiency, like a pleasure boat floating on the Mitsilapi River, but the free-rotating water turbine (7) of the present invention has a completely different effect. belongs to. The former is driven and splashes water backward and upward, but the latter is driven by the movement of the ship, with the tip of the partition plate (6) being pressed down by the water, much like the wheels of a horse-drawn carriage rolling over the road. It is something that rolls on water. One partition plate (6
If the movement of 〉 is illustrated at regular time intervals, it will look like the one shown in Fig. 2, and the locus of its tip will be close to a cycloid curve (b), as shown in mechanics. As you can clearly see in this drawing, the tip of the partition plate (6) is pushed into the water and pulled up, so the stirring of the water and the loss of energy are minimal.Also, once the water wheel (7) starts rotating, The waterwheel itself tries to continue rotating due to inertia.

This mechanism, which has little resistance to water and can suppress the outflow of pressurized air, is the key point of the present invention.

Explanation of additional matters (a) If the top plate (4) above the water wheel (7) is flat, there will be a large gap at the rotating position, making it easier for pressurized air to escape, so use at least two partition plates. (6) It is necessary to make the cylindrical surface into a nearly airtight state at an angle greater than the angle formed by (6). The balloon will appear in front of you and get in the way of your progress. Therefore, it is effective to make holes on the left and right sides of the front of the cylindrical surface and connect a rearward-facing wind guide pipe (6) to help the ship move forward.

(c) Similar air from the rear water wheel (7) is blown out backwards on the water surface) which helps the ship move forward.

2) If you place the top plate (4) on the bottom of the boat in the shape of a pot or make it into an air chamber (3) to ensure sufficient space, it will prevent the air pressurization device (9) from malfunctioning and stopping. (E) If a circular partition plate is installed in the center of each waterwheel (7) perpendicular to the shaft, when the ship is tilted, the gap between the lower partition plate (6) The air compression force on the opposite side is greater than that on the opposite side, and the force that restores the hull to its original position works, showing its resilience. If a partition wall is provided in the center running direction of the pressurized air chamber α■, the effect will be further enhanced.

(f) When the ship is to be propelled by a scree like a general ship, it is convenient to use both sides of the ship (5) as a catamaran and install a prime mover and a screw on each side. Water resistance is greater, but since the hull is floated by pressurized air in the middle, there is much less water resistance compared to a normal catamaran, making it possible to operate economically.

(g) If the speed of the ship increases further and it is subjected to strong wind pressure, it is possible to eliminate the water wheel (7) at the front.

At this time, it is desirable to install a stabilizing tail at the rear of the hull to ensure safe travel.

As described above, in the present invention, water comes into contact with the side plate (5) of a slight depth of water in the traveling direction and the partition plate (6) of the free-rotating water turbine (7).
The resistance of the water is minimal by only pressing down and pulling up the tip, and since the levitation is performed by pressurized air in a sealed pressurized air chamber (10), there is no need for a large amount of pressurized air like in a hovercraft, and there is only a small amount of water resistance. It is possible to operate at high speed with the power and fuel of 2,000 yen, and its economic effect on water transport of passengers and cargo is considerable.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional view of a pneumatically floated propeller ship with a free-rotating water wheel according to the present invention. FIG. 2 is an explanatory diagram showing the movement of one partition plate of a free-rotating water turbine. (1) is the cockpit and cabin, (2) is the prime mover, (3) is the air chamber, (4) is the top plate, (6) is the side plate, (6> is the partition plate, (
7) is a free rotating water turbine, (8) is a water surface, (9) is an air pressurization device, (10 is a pressurized air chamber, (b) is a cycloid curve, (2) is a wind guide pipe, (c) is an air speech bubble, α4 is the rudder

Claims (1)

[Claims] Flat side plates (5) parallel to the direction of travel are provided below both sides of a medium-concave top plate (4) suitable for mounting the cockpit and passenger cabin (1), prime mover (2), air chamber (3), etc. In the front and rear openings, there are several to ten or more partition plates without holes in the radial direction (6
) A free-rotating water turbine (7) with The pressurized air created by the air pressurization device (9) is blown into the internal space of the top to create a pressurized air chamber (10), and the air pressure causes the entire structure to float above the water surface (8). A pneumatic levitation boat with a free-rotating water wheel that is propelled by a separately installed outboard screw machine, jet pump, air propeller, prime mover (2), jet engine, etc.