Large output propulsion device by propulsion type propeller having reciprocal engines or ev motor of glider vessel as power

The gliding vessel design addresses energy inefficiency and high maintenance costs by employing multiple reciprocating engines and EV motors with a rotor system, enabling efficient operation at 200-300 km/h and reducing costs.

JP2025067734APending Publication Date: 2025-04-24FUTURE FORECASTING RES INST CO LTD

Patent Information

Application Number
JP2023185999
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-10-13
Publication Date
2025-04-24

AI Technical Summary

Technical Problem

Existing gliding ships face challenges with energy inefficiency and high maintenance costs due to turboprop engines, and high-powered turbofan engines are not suitable for gliding at 200-300 km/h over sea surfaces.

Method used

A gliding vessel design featuring multiple reciprocating engines and EV motors, with a rotor system that includes a propulsion propeller attached to the tip of the rotor, and disk-shaped gears connected to the engines or motors to provide powerful propulsion.

Benefits of technology

This design allows for efficient operation at 200-300 km/h, reducing transportation costs and maintenance expenses by utilizing cheaper reciprocating engines and EV motors, while maintaining stability and power output.

✦ Generated by Eureka AI based on patent content.

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Abstract

To develop a high speed vessel capable of navigating at a speed of 200 to 300 km / h loaded with several hundred tons of cargo.SOLUTION: In a glider vessel, from both sides or a rear part of a cabin or a cargo compartment on a float, an object having the same function as a rotor which rotates blades of a helicopter is raised vertically from a lower part of the float, another rotor is horizontally attached to a rear side meshed at a gear on its upper end, a propulsive type propeller is attached on its tip, a disc-like gear is attached to a lower end, many reciprocating engines or EV motors are attached in a circle at its tip so as to rotate the disc-like gear at a rotor lower end when a bevel gear is rotated in its outer circumference, and the propulsive type propeller at a rotor tip is rotated when the reciprocating engines or the EV motors are operated so as to obtain great propulsion force.SELECTED DRAWING: Figure 5
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Description

[Technical field]

[0001] The present invention relates to a high-power propulsion device using a reciprocating engine for a gliding boat that glides on the sea surface at a speed of 200 to 300 km per hour or an EV motor. [Background technology]

[0002] For example, if the maximum weight at takeoff of the YS-11 aircraft is the same, and the power is also the same, that is, the main wings and the set of takeoff and landing wheels are the same as the floats, and the YS-11 engine is attached to the float and operated, it will glide on the sea surface at about 150 to 300 km per hour just like an airship. However, if it is left as it is, the center of gravity will be high and it will be easy to roll over when stopped, so a method called a gliding ship was developed in which the lower part inside the float is used as a ballast tank. However, in reality, there are problems that make it still not practical. As with the YS-11, the engine is a turboprop engine, which is not energy efficient, and maintenance as a ship is difficult in an ordinary port. Furthermore, the engine of the aircraft with a similar load weight for a large gliding ship is a turbofan engine with a higher power output, which is designed to be most efficient when flying at high altitudes and high speeds, and is not suitable for gliding at 200 to 300 km per hour on the sea surface. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent application 2021-201217 [Patent Document 2] Patent application 2023-101217 Summary of the Invention [Problem to be solved by the invention]

[0004] Taking the YS-11 as an example, the engine power during flight is about 6000 horsepower when the maximum takeoff weight is about 25 tons. In other words, the engine power is 240 horsepower per 1 ton of maximum takeoff weight. This relationship does not change significantly, although the horsepower drops slightly as the engine efficiency increases. If a glider is planned to transport heavy loads in the future, the load weight will be 400 tons, which will be 96,000 horsepower, and if four engines are to handle that power, each will have 24,000 horsepower. Even gas-fired turbine engines for helicopters have only 3000 to 4000 horsepower, and automobile reciprocating engines have a maximum of about 20,000 horsepower, which is insufficient for an engine that rotates a propeller suitable for a glider.

[0005] Gliders are transported by sea, so it is desirable to keep the transportation costs low. In that sense, it is also desirable that the construction costs of gliders are not too high. In that sense, it is desirable for the engines to be based on cheaper reciprocating engines or EV motors rather than expensive jet engines.

[0006] In order to reduce transportation costs, it is desirable to reduce the costs of maintaining and repairing gliders. In that sense, there is a need for engines other than jet engines that meet the requirements. [Means for solving the problem]

[0007] A glider according to one aspect of the present invention for solving the above problems has rotors with the same function as helicopter blades that are raised vertically from the bottom of the float on both sides or the rear of a cabin or cargo hold on the float, and another rotor is attached horizontally to the rear, with its upper end meshed with gears, a pusher propeller attached to the tip of that, a disk-shaped gear attached to the bottom end, and several reciprocating engines or EV motors attached in a circle at the tip of the bevel gear so that when it rotates, it rotates the disk-shaped gear at the bottom end of the rotor, and when the reciprocating engine or EV motor is running, the pusher propeller at the tip of the rotor rotates, generating powerful thrust.

[0008] A rotor is attached vertically above the hangar on the float, at a height that allows the pusher propeller to rotate, and another rotor is attached horizontally to the rear, with a gear attached to its upper end. A disk-shaped gear is attached to the lower end of that, and several EV motors are attached around the outer periphery, with their tips each meshing with the disk-shaped gear at the lower end of the vertical rotor. When the motors rotate, the pusher propellers rotate with great force, generating forward thrust; if the hangar is wide, as many pusher propellers as possible can be installed. Effect of the Invention

[0009] According to the present invention, by rotating multiple reciprocating engines or EV motors at high speed to generate high output, it is possible to rotate a large-radius pusher propeller at high speed to operate a glider at a speed of 200 to 300 km per hour. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a side view of a glider equipped with a pusher propeller, showing one embodiment of the present invention. [Diagram 2] FIG. 2 is a plan view of FIG. 1 showing an embodiment of the present invention; [Diagram 3] FIG. 2 is a front view of FIG. 1 showing an embodiment of the present invention; [Figure 4] FIG. 3 is a front cross-sectional view of the propellers of FIG. 2 mounted in a row according to an embodiment of the present invention; [Diagram 5] FIG. 5 is a partially cutaway cross-sectional view of a large radius pusher propeller device as seen from the left of FIG. 4 in the direction of a glider. [Figure 6] FIG. 6 is a partially cutaway plan view of the engine and gear box shown in the lower part of FIG. 5, illustrating an embodiment of the present invention. [Figure 7] FIG. 6 is a partially cutaway cross-sectional view showing an embodiment of the present invention in which the reciprocating engine in FIG. 5 is replaced with an EV motor and attached above the gearbox. [Figure 8] FIG. 8 is a partially cutaway plan view of the motor and gearbox of the EV in FIG. 7, showing one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0012] The engine power required for gliding at 200-300 km per hour on the sea surface like a glider is about 240 horsepower per ton of gliding weight, and about 100,000 horsepower is required if gliding at 400 tons. As shown in Figure 5, this is a large pusher propeller device 18, with a gear attached to the lower end of the rotor 9, a circular metal plate 11 with a gear attached upward on the outer circumference, and many reciprocating engines 7 with gears attached to the end of the drive shaft are arranged on the circular metal plate 11, and the gears 17 at the end of the drive shaft are engaged to operate the reciprocating engines simultaneously to obtain large output. Currently, one reciprocating engine can have a horsepower of 2,000 in a large automobile, and if 5 to 10 reciprocating engines 7 are installed around the gear box 8 under the rotor 9 as shown in Figures 5 and 6, it will be 10,000 to 20,000 horsepower. If 20 engines are installed, it will be 40,000 horsepower, and the output of the pusher propellers on both sides of the cabin or cargo room 3 of the float 1 will be 80,000 horsepower for two units.

[0013] The advantage of this method is that automobile reciprocating engines are not expensive per unit; even if each unit costs 5 million yen, a configuration of 20 units would cost only 100 million yen, which is considerably cheaper than a large jet engine.

[0014] In addition, a large number of reciprocating engines 7 can be placed under the float 1, lowering the overall center of gravity and contributing to the stability of the glider.

[0015] However, it is difficult to install many rotors 9 penetrating the interior of the cabin or cargo room 3. Therefore, several EV motor-driven propeller devices 10 of the same type are installed on the line connecting the large propeller devices 18 on both sides of the cabin or cargo room 3. The upper end of the rotor 9 is at a height that allows the EV to rotate, and the rotation radius of the propeller is optimal for the engine output.

[0016] In addition, because the EV motor is small and light, even if it is installed on top of the cabin or cargo bay, it does not raise the center of gravity of the glider and does not significantly affect stability. The generator for the EV motor can be installed on the lower part of both sides of Float 1, and even in the case of hydrogen fuel, the fuel tank can be inside Float 1, and there is no problem with stability even if it is large-capacity.

[0017] It is relatively easy to increase the output of a system that uses an EV motor as a power source; for example, it would not be impossible to achieve a 5,000 horsepower system. Another advantage is that it is smaller than a reciprocating engine, and many of them can be placed in a small space. For example, if 20 of these are attached to the bottom of the rotor, the output will be 100,000 horsepower, which will compare favorably with the high-output jet engines of large aircraft. Examples are shown in Figures 7 and 8. Figure 7 shows an EV motor placed vertically on top of a gearbox 8 in place of the reciprocating engine in Figure 6. A circular metal plate 14 with gears on its outer periphery is attached under the rotor 9, and it is rotated by a gear 13 attached to the drive shaft of the EV motor.

[0018] The advantage of this is that the overall volume of the engine section is small, the weight is not too large, and it is easy to install on the roof of the cabin or cargo room 3.

[0019] The advantage of this is that even though a considerable amount of electricity is required to run an EV's motor, a large generator such as a fuel cell, a gas turbine engine, or a hydrogen-fueled reciprocating engine can be installed inside the float, which can adequately supply power.

[0020] According to an embodiment of the present invention, a fairly large glider capable of carrying hundreds of tons of cargo or trucks can be operated over long distances at speeds of 200-300 km / h and still be commercially viable. [Explanation of symbols]

[0021] 1 Float 2. Spoilers 3. Cabin or cargo hold 4 Vertical stabilizer 5 Horizontal stabilizer 6 Pusher Propeller 7. A reciprocating engine with a gear at the end of the drive shaft 8 Gearbox 9 Rotor 10 EV motor-driven propulsion propeller device 11 A circular metal plate with gears facing upwards on its outer periphery 13 EV motor with gears attached to the end of the drive shaft 14. A circular metal plate with gears on its outer periphery 15 Foam material 16 Ballast Tank 17 Gear at the end of the drive shaft 18 Large pusher propeller device

Claims

1. From the sides or rear of the cabin or cargo hold on the float, A rotor, which functions like a helicopter's blades, is raised vertically from the bottom of the float. The upper end of the rotor is attached horizontally to the rear, meshed with a gear. A pusher propeller is attached to the tip of the A disk-shaped gear is attached to the bottom end, and several reciprocating engines or EV motors are attached to the outer periphery of the gear, and the bevel gear at the tip of the motor is attached in a circle so that when the bevel gear rotates, the disk-shaped gear at the bottom end of the rotor rotates. When a reciprocating engine or an EV motor is running, the propeller at the tip of the rotor rotates, providing powerful thrust. A gliding vessel characterized by

2. A rotor is mounted vertically above the hangar on the float at a height that allows the pusher propeller to rotate, and another rotor is mounted horizontally at the rear, meshed with a gear at the top of the rotor. A disk-shaped gear is attached to the bottom of the rotor, and several EV motors are attached to the outer periphery so that their tips mesh with the disk-shaped gears at the bottom of the vertical rotor. When the motors rotate, the propellers rotate with great force, providing forward thrust. If the hangar is wide, as many pusher propellers as possible should be installed.

2. The glider according to claim 1 ,

Citation Information

Patent Citations

  • Gliding vessel

    JP2023076363A

  • Stability maintenance device of gliding ship during high-speed sailing

    JP2024174780A

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