JPH0447410Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The invention relates to an ozone generator for internal combustion engines.
More specifically, the present invention relates to an improvement in an ozone generator that efficiently sends generated ozone to the internal combustion engine.

[Prior Art] As is well known, an engine is used in an internal combustion engine, and a carburetor is provided upstream of the engine, which is connected to an intake air pipe and a fuel tank.

It has been conventionally believed that increasing the ozone content in the intake air increases the amount of ozone in the intake air around fuel particles in the carburetor, promoting oxidation, increasing combustion efficiency, and improving fuel efficiency. Because of this, some inhalation engines were equipped with ozone generators.

One conventional example is one in which one electrode is placed at the center of the intake air pipe, and the other electrode is placed on the wall of the pipe, and a silent discharge is generated between the two electrodes to generate ozone. It was hot.

According to the above-mentioned conventional technique, ozone is certainly generated by the ozone generator and sucked into the carburetor. However, in this case, since the entire area of the intake air pipe is a silent discharge area, ozone is generated around the electrode located in the center and remains there, so due to the physical properties of oxygen, it returns to O ₂ .
There was a problem that the ozone content in the air being inhaled decreased.

A proposal that can solve these problems has been proposed in Japanese Patent Laid-Open No. 136555/1983.

The "ionization device for internal combustion engines" proposed in the above publication generates ozone almost in front of the outer electrode, and has two regions: an area where ozone is generated and an area where the generated ozone is transferred to the engine. The mechanism was complicated because it was formed separately.

That is, in this case, a glass tube is provided, the inside of which is filled with inert gas, and an internal electrode is provided within the glass tube. Further, an outer electrode made of copper and having a large number of holes is provided on the outside of the glass tube so as to substantially surround the glass tube.

By applying a high voltage between the inner and outer electrodes, ozone is generated between the outer surface of the glass tube and the outer electrode, and
The generated ozone is discharged to the outside of the outer electrode through a number of holes formed in the outer electrode, and leaks into the airflow toward the engine.

[Problems to be solved by the invention] In the case of the above-mentioned "ionization device for internal combustion engines," a glass tube is provided to generate ozone almost in front of the outer electrode, and the inner electrode is arranged inside the glass tube. In addition, the structure is complicated, and the manufacturing process is time-consuming and costly.

In view of the above-mentioned problems, the present invention makes it possible to generate ozone over almost the entire surface of the electrode, and to simplify the structure of the ozone generator in which the generated ozone has little chance of returning to O ₂ . The purpose is to

[Means for Solving the Problems] In order to achieve the above object, the present invention has the following technical means. That is, to explain this using the reference numerals in the attached drawings that correspond to the embodiments, the present invention provides an ozone generator for an internal combustion engine that is used by being connected to an intake air pipe 4 connected to an engine 2. The ozone generator 1 is formed in a cylindrical shape as a whole, and a plurality of rod-shaped electrodes 9 used as discharge electrodes for ozone generation are arranged along the longitudinal direction, so that the inside of the ozone generator 1 is is divided into a first region and a second region along the longitudinal direction, and in the first region, the other discharge electrode is arranged parallel to the rod-shaped electrode 9 at a predetermined distance. The rod-shaped electrode 9 is arranged so as to function as a region for generating ozone by silently discharging between the rod-shaped electrode 9 and the other discharge electrode, and the second region is This ozone generator for an internal combustion engine is characterized in that the ozone flowing between the electrodes 9 functions as an ozone transfer area for moving toward the engine 2.

[Function] Based on the above configuration, this ozone generator not only generates ozone by silent discharge, but also allows the interior of the ozone generator to become the first area due to the arrangement of the electrodes for generating silent discharge. The first area functions as an area for generating ozone, and the second area serves as an area for the generated ozone to move toward the engine. By being configured to function as a moving region, the generated ozone is continuously sucked into the engine, and even if ozone is generated one after another around the electrode, the ozone will not remain in one place. Therefore, almost no ozone is returned to _O2 .

[Embodiments] Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, 1 is an engine, and upstream thereof is a conventionally known carburetor 3. The carburetor 3 includes an intake air pipe 4 connected to an air cleaner (not shown), and a fuel pipe 5 connected to a fuel tank and fuel pump (not shown).

When the engine 2 is arranged as described above and started, its rotation generates negative intake pressure, air is sucked into the carburetor 3 by the negative pressure, and when the air passes through the intake passage inside the carburetor 3, Negative pressure is generated within the carburetor 3. As a result, fuel is sucked in from the fuel pipe 5, becomes atomized, mixed with air, and sucked into the engine 2, causing the engine 2 to rotate.

In the ozone generator of this embodiment, in the above process, the ozone content in the air surrounding the atomized fuel is increased to increase combustion efficiency and improve fuel efficiency. For this purpose, an ozone generator 1 is installed on the intake air pipe 4 upstream of the carburetor 3.

As a first example of the ozone generator 1, as shown in FIGS. 3 and 4, attachment bodies 11 made of an insulating material are attached to both ends of the intake air pipe 4. A wire-mesh-like support 12 that does not obstruct the flow of air flowing there is attached, an annular electrode support 10 made of carbon fiber, etc. is attached, and a rod-shaped electrode 9 is supported between the electrode supports 10. body 1
They are arranged at equal intervals along the edge of 0. Then, the other electrode 13 connected to the high voltage power source 8 is arranged between the attachment bodies 11.

As shown in FIG. 1, the high voltage power supply 8 includes a pickup coil 8a, an amplifying section 8b, and a high voltage generating coil 8c. If the voltage is constant regardless of the amount of intake air, the ozone content per unit amount of intake air will change, so the intake negative pressure detection tube 6 is led from upstream of the engine 2. . Then, by attaching an intake negative pressure detection end 7 for detecting intake negative pressure to that end, and connecting the intake negative pressure detection end 7 to the amplifying section 8b, the magnitude of the high voltage can be adjusted according to the amount of intake air. I'm trying to change it. For example, it is designed to vary from 20,000 volts to 30,000 volts depending on the amount of intake air. That is, engine 2
When the engine 2 rotates at a high speed, the amount of ozone generated is increased, and when the engine 2 rotates at a low speed, the amount of ozone generated is decreased.

Based on the above configuration, when the engine 2 rotates, intake negative pressure is generated, intake air is sucked in from the air cleaner, and fuel is sucked in from the fuel tank. These air and fuel are mixed and atomized and then sucked into the engine 2 and combusted, thereby causing the automobile to run.

Here, focusing on the ozone generator 1, silent discharge is generated between the wall electrode 13 and the rod-shaped electrode 9, and ozone is generated around the rod-shaped electrode 9. In this embodiment, as shown in FIG. 4, eight rod-shaped electrodes 9 are arranged at a predetermined interval between the center and the wall electrode 13.

By arranging the rod-shaped electrode 9 in this manner, the interior of the wall electrode 13 formed in a cylindrical shape is divided into a first region and a second region.

The first region includes a rod-shaped electrode 9 and a wall electrode 13.
These electrodes 9,
13 is used as a region where ozone is generated by applying a high voltage.

On the other hand, the second area functions as a movement area for the ozone generated in the first area to move to the engine 2. Due to the above movement of ozone, the ozone distribution ratio around the rod-shaped electrode 9 is lowered, so that due to the physical properties of ozone, there is less opportunity for it to return to _O2 .
As a result, the generated ozone remains as it is,
That is, the O ₃ state is sucked into the engine 2 via the carburetor 3. As a result, when the mixture is atomized with fuel, the ozone content in the air surrounding the fuel particles increases, which increases combustion efficiency and improves fuel efficiency.

As described above, in this embodiment, a plurality of rod-shaped electrodes 9 are generated between the center of the intake air pipe 4 and the plane, and ozone is generated by generating a silent discharge between the electrodes 9 and the wall surface. Furthermore, the generated ozone can move through areas other than the silent discharge area. That is, a movement region 15 is provided for the generated ozone to move toward the engine.

As a second example of the ozone generator 1, as shown in FIGS. 5 and 6, one can be considered in which an electrode 14 connected to a high voltage power source 8 is disposed at the center. With this configuration, the movement area of generated ozone is the peripheral area 16 between the wall surface and the rod-shaped electrode 9.
becomes. In this case as well, the effects and configuration are the same as in the first example.

As mentioned above, the ozone generator 1 of the present invention has the following features:
In addition to producing ozone through silent discharge,
Since the rod-shaped electrode 9 is disposed between the center of the intake air pipe 4 and the wall surface, the central region 15 or the peripheral region 16 can be left inside as a movement region for the generated ozone, and thus the ozone becomes O ₂ You can reduce the chances of going back. Therefore, ozone can be sent as it is to the engine 2 via the carburetor 3, increasing the ozone content in the air around the fuel particles, increasing combustion efficiency, and thus improving fuel efficiency.

Moreover, the ozone generator of the present invention has a simple structure and can be easily manufactured.Therefore, ozone can be generated over almost the entire surface of the electrode, and the generated ozone can be converted into _O2 . It is possible to significantly reduce the manufacturing cost of an ozone generator that has few chances of returning.

[Effect] As detailed above, according to the present invention, a rod-shaped electrode is disposed between the wall surface and the center of the intake air pipe, and the rod-shaped electrode divides the inside of the intake air pipe into a first region and a second region. The first area is the ozone generation area, and the second area is the ozone movement area, so the generated ozone flows into the movement area and is continuously delivered to the engine via the carburetor. It becomes inhaled. Therefore, even if ozone is generated one after another around the electrodes, the ozone does not stay in one place, and as a result, there is almost no chance for ozone to return to _O2 , increasing the ozone content in the air inside the engine. , it is possible to simplify the ozone generator, which has the advantage of increasing combustion efficiency and thus improving fuel efficiency.This makes it possible to easily manufacture the ozone generator, and significantly reduces manufacturing costs. can do.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention, in which Fig. 1 is a layout diagram of an ozone generator, Fig. 2 is a perspective view of a rod-shaped electrode inside the ozone generator, and Fig. 3 is a side view of the ozone generator of the first example. 4 is a sectional view from the front of the ozone generator of the first example, FIG. 5 is a sectional view from the side of the ozone generator of the second example, and FIG. 6 is a sectional view of the ozone generator of the second example. FIG. 3 is a cross-sectional view from the front of the generator. In the diagram, 1... ozone generator, 2... engine,
3... Carburetor, 4... Intake air pipe, 5...
Fuel pipe, 6...Intake negative pressure detection tube, 7...Intake negative pressure detection end, 8...High voltage power supply, 8a...Pickup coil, 8b...Amplification section, 8c...High voltage generating coil, 9... ... Rod-shaped electrode, 10 ... Electrode support,
11... Mounting body, 12... Support body, 13...
Wall electrode, 14... center electrode, 15... center region, 16... peripheral region.

Claims (1)

[Claims for Utility Model Registration] In an ozone generator for an internal combustion engine that is used by being connected to an intake air pipe 4 connected to an engine 2, the ozone generator 1 is formed into a cylindrical shape as a whole, and By arranging a plurality of rod-shaped electrodes 9 used as discharge electrodes for ozone generation along the longitudinal direction, the interior of the ozone generator 1 is divided into a first region and a second region along the longitudinal direction. In the first region, a plurality of other discharge electrodes are arranged in parallel with the rod-shaped electrode 9 at a predetermined interval, and the rod-shaped electrode 9 and the other discharge electrode are arranged in parallel. The second region functions as a region for silently discharging and generating ozone between the discharge electrode and the second region, where ozone flowing through between the rod-shaped electrodes 9 flows into the engine 2. 1. An ozone generator for an internal combustion engine, characterized in that the ozone generator functions as an ozone transfer region for moving in a direction.