JPH0785999B2 - Electromagnetic propulsion device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electromagnetic propulsion device for propulsion of a ship, for example, using a coil excited in a superconducting state.

(Prior Art) As a conventional propulsion device, for example, an internal combustion engine, a general electric motor, or the like is used to obtain a propulsion force by rotating a screw or feeding water backward by a pump or the like.

Further, in recent years, an electromagnetic propulsion device has been considered which generates a thrust by an electromagnetic force of a magnetic flux of an exciting coil in a superconducting state which is excited by a direct current and a direct current which is orthogonal to the magnetic flux and is applied to seawater.

(Problems to be Solved by the Invention) However, in order to apply a direct current to seawater, it is necessary to immerse an electrode pair in seawater and to supply a direct current to this electrode pair. As a result, hydrogen gas, chlorine gas, etc. are generated from each of the electrode pairs in response to the applied current, and the electrodes themselves are also corroded.

In order to prevent the generation of gas from the electrodes and the corrosion of the electrodes, there is a method of supplying an alternating current to the electrode pairs.One of the methods is to rotate the electrode pairs to generate a current with different polarities at regular intervals. It may be possible to supply power to. That is, a cylindrical body having an electrode pair on the inner surface facing in the diametrical direction,
A seawater pipe is rotatably connected in the middle of a water pipe through which shaft water seals are provided at both ends of the cylinder, and a sliding plate electrically connected to the electrode pair is provided on the outer periphery of the cylinder. While rotating the body, a current having a different polarity, that is, an alternating current is supplied to the electrode pair via a brush or the like that is brought into contact with the sliding plate on the outer circumference of the cylindrical body.

However, in such an electromagnetic propulsion device, although it is possible when the propulsive force is small and the diameter of the cylindrical body is small, when the diameter of the cylindrical body is increased to increase the propulsive force, the diameter of the shaft sealing device is also increased. Since it becomes larger and the peripheral speed becomes faster, the sealing performance is reduced due to the structure of the shaft sealing device, and water leakage etc. easily occur,
In addition, in order to rotate the enlarged cylinder body, power of a powerful motor or the like is required, and there is a problem in increasing the size.

The present invention has been made in view of the above problems, can prevent the generation of gas and corrosion of the electrodes, and does not require special power to rotate the electrode pair, such as water leakage It is an object of the present invention to provide an electromagnetic propulsion device which does not cause a problem and can cope with an increase in size due to an increase in propulsion force.

(Means for Solving the Problem) The electromagnetic propulsion device of the present invention can be rotated by a non-magnetic outer cylindrical body through which a conductive liquid flows, and a shaft body supported and fixed inside the outer cylindrical body. An insulative electrode cylinder supported by the electrode cylinder, an electrode pair formed by a pair of electrode plates arranged in the electrode cylinder in a diametrically opposed manner, and an outer cylinder provided in the electrode cylinder. A rotation receiving portion that receives a rotational force due to the thrust generated in the liquid in the body, and an exciting iron core that has magnetic poles that are arranged to face each other outside the outer cylindrical body in a direction orthogonal to the axial direction of the outer cylindrical body, A magnetic path formed in the excitation core and the liquid in the outer cylinder, an exciting coil for generating a magnetic flux in this magnetic path, and an electrode pair fixed between the electrode cylinder and the shaft and fixed to the shaft side. And a sliding plate that conducts electricity corresponding to each pair of electrode plates. A watertight structure power supply switching mechanism having a brush that slidably contacts the sliding plate of the present invention to flow an electric current, and applies different polarities from the brush to the electrode pair as the electrode cylinder rotates. The magnetic flux in the magnetic path and the current flowing in the liquid are made orthogonal to each other to generate a propulsive force in a direction along the axial direction of the outer cylindrical body.

(Operation) In the electromagnetic propulsion device of the present invention, a conductive liquid is circulated in the outer cylinder to generate magnetic flux by the exciting coil, and at the same time,
By flowing a current from the brush of the power feeding conversion mechanism to each electrode plate of the electrode pair of the electrode cylinder through the sliding plate and flowing a current in a certain direction in the liquid, the magnetic flux and the current are orthogonal to each other in the liquid, A thrust force is applied to the liquid along the axial direction of the outer cylinder. In addition, the electrode cylinder that receives the thrust generated in the liquid in the outer cylinder by the rotation receiving part automatically rotates, and the rotation of this electrode cylinder causes the alternating current of different polarity from the brush to each electrode plate of the electrode pair. An electric current flows, and the magnetic flux in the liquid, the electric current, and the axial direction of the outer cylindrical body are always orthogonal to each other, and a propulsive force is obtained in the axial direction of the outer cylindrical body.

(Embodiment) Hereinafter, a configuration of an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1 and FIG. 2, reference numeral 1 is an exciting core having a substantially rectangular tube shape formed of, for example, a yoke, and the magnetic poles 2 and 3 projecting on the left and right inner sides of the exciting core 1 have exciting coils 4,5. Is wound around. Further, the tips of the magnetic poles 2 and 3 form arcuate recesses, and the inside of the space between these magnetic poles 2 and 3 is an outer cylindrical body made of a non-magnetic material in which a conductive liquid such as seawater flows. 6 is provided.

Reference numeral 11 denotes an insulating electrode cylinder which is rotatably disposed inside the outer cylinder 6, and as shown in FIG. 3 and FIG. The inner surface is provided with four electrode plates 13, 14, 15, 16 each having a length in the axial direction at an angle slightly narrower than 90 °, and the electrode plates 13, 15 and 14 facing each other in the diametrical direction are provided. , 16 and electrode pair 17,1
Forming eight. Further, ring-shaped bearing portions 19 that are rotatably fitted to a shaft body 41 described later are provided at both ends of the tubular portion 12, and the bearing portions 19 and the tubular portion 12 are connected and supported. Then, the rotation receiving portion 20 is provided. The rotation receiving portion 20 has a plurality of blades 21 and receives the thrust of the liquid flowing in the outer cylindrical body 6 to rotate the electrode cylindrical body 11.

Reference numeral 31 denotes an iron core body fixedly arranged inside the electrode cylinder 11, and as shown in FIGS. 5 and 6, a current I direction flowing in the liquid between the electrode pairs 17 and 18 The parallel flow paths 32, 33, 34, 35 of the electric current of
A plurality of magnetic iron cores 36, 3 forming a liquid passage in a direction substantially perpendicular to
7, 38, and this magnetic iron core 36-38 has rings 39, 4 at both ends.
It is supported and fixed by 0, and the entire surface is insulated and coated so as to be insulated from the liquid flowing in the outer cylinder body 6.

Further, 41 is a shaft body, one end of which is fixed to an arm 42 which is installed between the inner sides of the outer cylindrical body 6, and the other end of which is fixed to the center of the end face of the iron core body 31, and , The iron core body 31 is fixedly supported with respect to the outer cylinder body 6,
The electrode cylinder 11 in which the bearing portion 19 is rotatably fitted is rotatably supported on the outer cylinder 6.

Further, 51 is a power feeding conversion mechanism, which is disposed on one end surface of the electrode cylinder 11 so as to be fitted to the shaft body 41. As shown in FIG. 7, inside the box body 52 having a watertight structure, It has a sliding plate 57, 58, 59, 60 which is rotated integrally with the electrode cylinder 11 and is connected to each electrode plate 13 to 16 by conducting wires 53, 54, 55, 56, and faces the current I direction. Brushes 61, 62 electrically connected to the sliding plates 57, 59 or the sliding plates 58, 60 corresponding to the electrode pair 17 or the electrode pair 18 are fixedly provided. This brush 61,62
To the outside of the outer tubular body 6 via the shaft body 41 and the arm 42, and power is supplied to the outside.

Next, the operation of the above embodiment will be described.

First, the exciting coil 4 and the exciting coil 5 are excited in a superconducting state to generate the magnetic flux B. Also brushes 61,6 at the same time
A sliding plate that supplies current between the two and makes contact with these brushes 61, 62
An electric current I is passed through the liquid, for example, seawater, in the electrode cylinder 11 via 57 to 60 and the electrode pairs 17 and 18.

Since the magnetic iron cores 36 to 38 are entirely electrically insulatively coated with respect to the liquid, the current I flows only in the liquid in the parallel flow passages 32 to 35, and the magnetic flux B and the current I in the liquid flow. Are substantially orthogonal to each other, and an electromagnetic force F is generated in the direction of the central axis of the electrode cylinder 11 to eject and propel the liquid.

At this time, the thrust of the liquid flowing in the outer cylindrical body 6 is applied to the rotation receiving portion 20.
The electrode cylinder 11 is rotated by being received by the wing body 21 of the
The sliding plates 57 to 60 of the power feeding conversion mechanism 51 that rotates integrally with the rotor 11 alternately contact the brushes 61 and 62, whereby each electrode pair 1
A positive electrode and a negative electrode are alternately supplied to each of the electrode plates 13 to 16 of 7,18. That is, alternating current is sequentially supplied to each of the electrode plates 13 to 16, so that gas generation from the electrode plates 13 to 16 and corrosion of the electrode plates 13 to 16 can be prevented.

In this way, the electrode cylinder 11 rotatably arranged in the outer cylinder 6 is automatically rotated by the thrust of the liquid in the outer cylinder 6, so that there is no risk of water leakage or the like. AC power can be supplied to the electrode pairs 17 and 18 without the power for rotating the electrode cylinder 11.

(Effect of the Invention) According to the present invention, the electrode cylinder can be automatically rotated by receiving the thrust generated in the liquid in the outer cylinder in the rotation receiving portion of the electrode cylinder, and thus the electrode cylinder can be rotated. No special power is required to rotate, problems such as water leakage do not occur, and it is possible to cope with large size to increase propulsion force.Moreover, as the electrode cylinder rotates, AC current is applied to the electrode pair. Since the gas flows, gas generation and electrode corrosion can be prevented.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of an electromagnetic propulsion device of the present invention, FIG. 2 is a side view with a part thereof cut away, and FIG. 3 is a side view with a part of an electrode cylindrical body cut out, FIG. 4 is an end view thereof, and FIG. 5 is a partially cutaway side view showing an iron core body,
FIG. 6 is an end view thereof, and FIG. 7 is a configuration diagram showing a power feeding circuit. 1 ... Excitation core, 4,5 ... Excitation coil, 6 ... External cylinder, 1
1 …… Electrode cylinder, 13,14,15,16 …… Electrode plate, 17,18 …… Electrode pair, 20 …… Rotating part, 41 …… Shaft, 51 …… Power transfer mechanism, 57,58 , 59,60 …… Sliding plate, 61,62 …… Brush, B ……
Magnetic flux, I ... current.

Claims (1)

[Claims] 1. A non-magnetic outer cylinder through which a conductive liquid flows, and an insulating electrode cylinder rotatably supported by a shaft supported and fixed inside the outer cylinder. Rotational force is generated by the electrode pair formed by a pair of electrode plates arranged in the electrode cylinder so as to face each other in the diametrical direction, and the thrust generated in the liquid in the outer cylinder provided in the electrode cylinder. A rotation receiving portion for receiving and an exciting iron core having magnetic poles arranged outside the outer cylindrical body so as to face each other in a direction orthogonal to the axial direction of the outer cylindrical body, and are formed in the exciting iron core and the liquid in the outer cylindrical body. A magnetic path, an exciting coil for generating a magnetic flux in this magnetic path, and an electrode plate which is provided between the electrode cylinder and the shaft body and which is fixed to the shaft body side and which forms a pair of the electrode pairs, are electrically connected to each other. It has a sliding plate that can A water-tight structure power supply conversion mechanism having a brush, different polarities are applied from the brush to the electrode pair as the electrode cylinder rotates, and the magnetic flux in the magnetic path and the current flowing in the liquid are made orthogonal to each other. An electromagnetic propulsion device which produces a propulsive force in a direction along the axial direction of the outer cylindrical body.