JPH05131981A - Water power propulsion machinery by compressed air - Google Patents

Abstract

PURPOSE:To ensure an excellent driving force without using any mechanical transmission mechanism by a method wherein air bubbles are generated by pressurizing water by a screw through injection of compressed gas toward the vane of a rotor through a nozzle in an induction plate and a water flow is accelerated for injection. CONSTITUTION:A conical rotor 2 is disposed in an outer shell 1, the central drum part thereof is supported by a bearing 5, and the rear part thereof is axially supported to the central part of an injection pipe 8. A screw 3 is mounted on the head part of the rotor 2, and a plurality of vanes 4 are mounted on a bottom part at similar intervals as those of induction plates 7. Further, since the induction plate 7 effects induction such that the advancing direction of a water flow is bent in the advancing direction of the vane 4, a plate in the shape of a streamline is bent to form the induction plate and a nozzle 12 communicated to a suction port 11 is disposed at the interior thereof. By injecting compressed gas through the nozzle 12 toward the vane 4, water is pressurized by the screw 3 and mixed with high pressure gas to generate air bubbles. This way causes acceleration of a water flow, which is injected through an injection nozzle 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water powered propulsion device that facilitates high speed propulsion.

[0002]

2. Description of the Related Art Among the propulsion devices for ships, a water-powered propulsion device based on the rotation of power and rotor blades has the advantage that the propulsive force per unit area of the rotating body is large. Have been offered to. A practical propelling device using a screw or a propeller has a simple structure because it has a mechanism for transmitting the rotation of power. An internal combustion engine and a mechanical transmission mechanism could be concentrated on the bottom of the ship, and switching between forward and reverse could be done by reversing the gear rotation, and good operability was also sufficient for practical use.

However, when it is used in a high-speed ship or the like, it is necessary to increase the water flow speed by a screw or a propeller in order to obtain a high-speed propulsive force. Due to the fluid characteristics, the fluid friction on the rotor blade in water is large, and the fluid resistance on the screw and propeller increases as the rotation speed increases.

In high speed propulsion of large vessels, this drawback is a major impediment to propulsion. Specifically, the propulsion efficiency of the screw or propeller with respect to the power decreases, or when the hull is lifted by the hydrofoil lift to reduce the fluid frictional resistance of the hull, the mechanical transmission mechanism of the stern is complicated. There was a problem such as becoming.

As a countermeasure for this, there are methods such as super-electric electromagnetic propulsion and jet gas propulsion that do not use screws or propellers. However, even with these methods, the energy efficiency of converting to superpower electromagnetic propulsion into hydropower propulsion is poor, and jet gas propulsion involves environmental pollution due to nitrogen oxides in the water. There is also a propeller blower propulsion method, but since the thrust due to only gas flow is weak, the propeller blower becomes large when used for large vessels.

[0006]

The problem to be solved is that a large amount of high-speed water flow in the rotor is inefficient due to the fluid frictional resistance of water, which is an obstacle in the hydropower propulsion of a large high-speed ship. ..

[0007]

The main feature of the present invention is that, in order to propel a large vessel at high speed, water is made to flow by the expansion force of compressed gas and the thrust is obtained by water flow ejected at high speed. .. The purpose of obtaining propulsion without using a mechanical transmission mechanism has been achieved without simplifying the engine structure and reducing energy efficiency.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view of one embodiment of the device of the present invention, and 1 to 12 are the same as FIGS. Also, 1
3 is a hydrofoil.

The cone-shaped rotor 2 is supported by a bearing 5 which is fixed to the inner side of the outer shell 1 via a bearing in the central body portion, and an ejection pipe 8 which is fixed to the inner rear side of the outer shell 1 via the bearing at the rear portion. Supporting the center of the, the frictional resistance is minimal and the rotation is stable. Further, the screw 3 is attached to the apex side head portion, and a plurality of blades 4 are provided on the outer periphery of the bottom side rear portion at intervals similar to those of the guide plate 7.

A plurality of guide plates 7 of the water flow guide system are provided in the blades 4.
Is fixedly installed from the periphery of the inner side of the outer shell 1 so as to be in close contact with the side surface of the rotor 2 in front of. Guide plate 7
Is formed by bending a streamlined plate in order to guide the water flow by bending it in the advancing direction of the blades 4, and the guide plates 7 with a certain number of intervals are installed in the outer shell 1. Mouth 1
A nozzle 12 communicating with 1 is built in, and a compressed gas is blown in the advancing direction of the blade 4.

By adopting a blade on the rear side of the bottom surface of such a conical rotor, a distance difference can be created between the axis of the blade and the screw and the point of action, and the lever works, which is built into the guide plate at a fixed number of intervals. Due to the adoption of the nozzle, water and high-pressure gas alternately pass and are mixed, so that fine bubbles can be formed.

The plurality of jet pipes 8 of the water flow guide system are divided into a honeycomb shape and are fixed around the inner side of the tail of the outer shell 1 to open the inside of the engine and the inside of the jet outlet 10 to open the inside of the jet pipe. The fixed shaft 6 is fixedly installed in the center part of the side of the rotor 2
The rotation of the engine is supported, and the bubbles inside the engine form a piston to accelerate the flow of water in the pipe and accelerate the flow velocity.

In the embodiment shown in FIG. 2, the hydrofoil 1 is provided on the outer periphery of the outer shell 1.
Since the propulsion can be stabilized by attaching 3, the lifting force increases as the hydrofoil 13 is extended and the hull is lifted, which accelerates the speed of a large ship, and as the propulsion speed increases, the water received from the front of the screw increases. The effect of the device is good because the inside of the engine is also pressurized by the flow pressure of the flow.

In the embodiment shown in FIG. 3, the guide plate 7 of the water flow guide system is used.
By injecting a compressed gas with a nozzle incorporated therein, water and high-pressure gas are alternately passed and mixed while rotating the blades, thereby forming fine bubbles.

[0015]

As described above, in the water-powered propulsion device using compressed gas of the present invention, the screw adds water into the engine by injecting the compressed gas from the nozzle built in the guide plate to the blades provided in the rotor. There is an advantage that water is injected under pressure and mixed with a high-pressure gas to form fine bubbles, and the bubbles expanding inside the ejection pipe form a piston to promote water flow, accelerate the flow velocity, and eject from the ejection port. Also, as the propulsion speed increases, the pressure inside the engine rises, the device's effect is good, and because there is no mechanical transmission mechanism, it can be installed outside the vessel freely, so it is possible to speed up large vessels with hydrofoils To Also,
It can be applied to applications where miniaturization is essential, such as propulsion using only air energy without loading power such as a submersible.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a vertical cross section of the present apparatus.

FIG. 2 is an explanatory diagram showing an example of a method for mounting a hydrofoil.

FIG. 3 is an explanatory view showing a guide plate and blades of this device.

[Explanation of symbols]

 1 Outer shell 2 Rotor 3 Screw 4 Blade 5 Bearing 6 Fixed shaft 7 Guide plate 8 Ejection pipe 9 Liquid inlet 10 Jet outlet 11 Air inlet 12 Nozzle

Claims (3)

[Claims] 1. In a propulsion means for obtaining thrust by hydraulic power of flowing water by jetting compressed gas, a conical rotor is supported from the periphery so as to be rotatable in a central body portion and a rear portion, and the apex side of the rotor is provided. A screw is attached to the head, a plurality of blades are provided on the outer periphery of the rear part on the bottom side, and a plurality of guide plates and ejection pipes are attached to the inner side of the outer shell to form a water flow guide system, which utilizes the expansion of compressed gas. Hydraulic propelling device using compressed gas, characterized in that the propulsive force is obtained by the hydraulic power ejected from the jet outlet 2. The nozzle according to claim 1, wherein a plurality of guide plates configured to guide the advancing direction of the water flow to the advancing direction of the vane in the water guide system of claim 1 has a nozzle built therein. Water powered propulsion system with gas 3. A hydropower propulsion device using compressed gas according to claim 1, wherein hydrofoils are attached to the outer periphery of the outer shell.