JPS6223363A - Alternating current mhd generator - Google Patents

Abstract

PURPOSE:To enable electric power of commercial frequencies to be generated, by generating shock waves with explosion, and by reflecting the waves to reverse the direction of gas stream. CONSTITUTION:An alternating current MHD generator for obtaining an AC electromotive force by reflecting shock waves due to explosion is organized of a combustion chamber 1, a guide 2, an electrode terminal 3, a coil 4 for magnetic flux generation, an igniter 5, a supply valve 6, a fuel tank 7, an exhaust valve 8 and a one-way valve 9. Then, fuel is fed to the combustion chamber 1a, and is ignited and exploded in the igniter 5a. Shock waves are generated by the explosion, and ionized gas passes through the guide 2 at high speed. As a result, an electromotive force is generated at the electrode terminal 3, and the shock wave is struck against a wall and returned to the original way, and so the direction of the following generated electromotive force is reversed. Accordingly, an AC electromotive force is obtained from the electrode terminal 3.

Description

[Detailed Description of the Invention] [Industrial Field of Application] - Hydrodynamics) Generators.

[Conventional technology]

Conventionally, klHD power generation is known in which an electromotive force is obtained by moving ionized gas in a magnetic field, and various studies are being conducted on it.

[Problem that the invention seeks to solve]

However, if you try to obtain communication using this method,
Since the direction of the massed gas flow must be reversed,
Although it was possible to generate electricity at frequencies around ultra-low frequencies, it was not possible to generate electricity at commercial frequencies.

[Means for solving problems]

In order to solve these drawbacks, the present invention utilizes shock waves caused by explosions to perform high-speed reversal of gas flow.

[For production]

A high-speed reversal of the gas flow is performed by reflecting the shock wave at the reflector.

〔Example〕

The figure is a sectional view of a main part showing an embodiment of the present invention. In the figure, 1ae1b is a combustion chamber, 2 is a guide, 3 is an electrode terminal attached to the inner wall side of guide 2, 4 is a coil that generates the entire magnetic flux in the vertical direction in the figure, sa, 5b are ignition devices, 6a-6b are Supply valve, T is fuel tank, 8aJb
is an exhaust valve, and 9a and 9b are one-way pulps that allow only the glass flow outward from the combustion chambers 1m and 1b to pass through.

The operation of the device configured in this way is as follows.

Now, the supply valve 6a is opened and the fuel tank T is transferred to the combustion chamber 1a.
When fuel is supplied to the combustion chamber and a predetermined pressure is reached within the combustion chamber, the ignition device ff15a ignites the combustion chamber to cause an explosion. Due to this explosion, the gas in the combustion chamber is rapidly sent out from the one-way pulp 9a toward the outside, that is, toward the combustion chamber 1b, thereby generating a shock wave.

As this shock wave is generated, the gas near the shock wave becomes hot and ionized, and passes through the guide 2 at high speed together with the shock wave.

Since the guide 2 is provided with a magnetic field perpendicular to the traveling direction of the shock wave by the coil 4, the traveling direction of the ions flowing through the guide together with the shock wave is bent by the magnetic field and collides with the electrode terminal 3.

This generates an electromotive force at the electrode terminal 3.

As the shockwave advances further, it eventually hits the wall of the combustion chamber 1b, but since the one-way pulp sb does not allow any shockwave from the left to right to pass through, the shockwave that hits the wall is reflected there and returns to its original path.
This time, the direction of the electromotive force generated is opposite. This shock wave then collides with the wall of the combustion chamber 81a and is reflected again. As the shock wave is reflected for a long time in this way, the direction of the gas flow in the guide is reversed by S degrees, and the electromotive force obtained from the electrode terminal 3 becomes alternating current.

Since the energy of the shock wave decreases each time it is reflected, the energy eventually becomes insufficient to cause a shock wave. At this time, when the exhaust valves 8a*8b are opened, unnecessary gas is discharged.

During the period when the shockwave is reciprocating within Guide 2,
Fuel is supplied to the combustion chamber 1bK via the supply valve 6b, and the pressure within the combustion chamber is increased by a predetermined value t.

After the exhaust is finished and the exhaust valves 8a and 8b are closed, the ignition device flt5bK ignites the combustion chamber 1.
An explosion occurs within b, and an alternating current electromotive force is obtained by the same operation as described above. Therefore, if the length of the guide 2, the pressure at the time of explosion, and the width of the combustion chambers 1a*1b are set appropriately, power generation at a commercial frequency of 5o or 60H2 can be performed.

Note that in the above embodiment, exhaust is performed after the shock wave has reciprocated within the guide 2 a plurality of times, but this exhaust operation may be performed for each reciprocation of the shock wave.
In this case, the amount of fluctuation in generated power is reduced.

〔Effect of the invention〕

As explained above, the invention generates a '/1 Tsukta wave by an explosion and reverses the direction of the gas flow by reflecting this shock wave.
This has the effect of realizing high-speed reversal of the gas flow, thereby enabling power generation at commercial frequencies.

[Brief explanation of drawings]

The figure is a sectional view of a main part showing an embodiment of the present invention. 1ajb@Φ・・Combustion chamber, 2・φ・・Guide, 3φ・[
Stock]・Wj Coffin Terminal, 4@-・・Coil, 5as5
b@...Ignition device, 6a, 6b11...Confession, Juben,
T...-Fuel tank, 8a, 8b...Exhaust valve, 9
−・・・One-way pulp.

Claims (1)

[Claims] A combustion section that generates shock waves for ionizing gas by explosion of supplied fuel; a guide connected to the combustion section that transmits the shock waves generated there; a reflection section that reflects the transmitted shock waves; and a guide. An AC MHD generator consisting of an electrode terminal provided on the inner wall of the AC MHD generator, and a field section that generates a magnetic field in a direction perpendicular to the direction in which the shock wave travels through the guide.