JPS6137817Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an ion generator for an internal combustion engine that supplies air ionized by plasma discharge to the internal combustion engine to improve combustion conditions.

In order to improve combustion efficiency, an ion generator that supplies ionized air to the combustion chamber of an internal combustion engine is provided with multiple pointed electrodes inside a cylindrical electrode that allows air to flow. A device is used in which a high DC voltage is applied to generate a corona discharge to create ions of molecules (mainly oxygen) in the air, and these ions are supplied to the combustion chamber from the intake port of the carburetor of an internal combustion engine. There is. However, conventional ion generators for internal combustion engines are large and include built-in high voltage generators, and when installing them into existing internal combustion engines, there are space limitations that prevent easy installation. Ta. Furthermore, since the electrodes of conventional ion generators are made of copper or its alloy, there is a problem in that the electrodes are easily worn out due to discharge phenomena.

This idea was created to solve the above problems, and is an ion generator for internal combustion engines that can be easily attached to the intake manifold or carburetor of existing internal combustion engines, and can reduce the wear and tear of electrodes due to discharge. The purpose is to provide

Hereinafter, embodiments of this invention will be described based on the drawings.

FIG. 1 shows a longitudinal cross-sectional view of the ion generator, and FIG. 2 shows a cross-sectional view thereof. The ion generator is formed by arranging a gear-shaped electrode 2 at the internal axis of a cylindrical electrode 1. There is. The cylindrical electrode 1, which also serves as a case, is made of high-purity nickel, and has an outlet 3 at one closed end, and an insulating support that holds a plurality of gear-shaped electrodes 2 at the other open end. The board 4 is fitted. A plurality of air supply ports 5 are bored in the insulating support board 4, and a support shaft 6 made of a conductive material is attached to the center of the insulating support board 4 made of an insulating material in the axial direction of the cylindrical electrode 1. Six gear-shaped electrodes 2 are coaxially installed on this support shaft 6 at regular intervals. These gear-shaped electrodes 2 are made of high-purity nickel, and the tips of the tooth shapes around them are sintered and coated with alumina ceramics to prevent wear during discharge. Note that the distance between the inner circumferential surface of the cylindrical electrode 1 and the tip of the gear-shaped electrode 2 is set uniformly, and the distance is set to about 6 mm, for example, depending on the applied high voltage and the state of occurrence of corona discharge.

The ion generator formed in this way is installed by connecting the outlet 3 to the intake manifold of the internal combustion engine or the intake port of the carburetor, and is connected to the output terminal of the DC high voltage generator 7 installed at another location. A lead wire is connected to the support shaft 6 on the positive side and to the cylindrical electrode 1 on the negative side. The output voltage of the high voltage generator 7 is approximately 6KV to 10KV.

When a DC high voltage is applied between the cylindrical electrode 1 and the gear-shaped electrode 2 by the high voltage generator 7, a corona discharge occurs between the cylindrical electrode 1 and the gear-shaped electrode 2. At this time, cylindrical electrode 1
When the air entering from the air supply port 5 flows into the chamber, the air is ionized by the electric field during discharge, and a portion of the oxygen is changed into ozone. However, ozone is immediately decomposed into oxygen and oxygen atoms, which become negative or cationic ions and are sent into the internal combustion engine from the outlet 3, which helps improve combustion efficiency. Here, since high-purity nickel is used for the cylindrical electrode 1 and the gear-shaped electrode 2, it prevents oxidation by ozone and increases durability, and the tip of the gear-shaped electrode 2 is sintered with alumina ceramics. Because it is coated, it maintains conductivity and improves heat resistance, preventing the tip from wearing out.

As described above, according to the ion generator for internal combustion engines of this invention, a plurality of gear-shaped electrodes are installed at regular intervals at the axial center position within the cylindrical electrode made of high-purity nickel, and the ion generator made of high-purity nickel is The tip of the gear-shaped electrode is sintered and coated with alumina ceramics, and this small cylindrical electrode is configured to be connected to the intake port of an internal combustion engine, making it suitable for existing internal combustion engines with limited installation space. It is easy to install and can improve durability by minimizing electrode wear due to discharge.

[Brief explanation of drawings]

The figures show an embodiment of this invention; FIG. 1 is a longitudinal sectional view of the ion generator, and FIG. 2 is a transverse sectional view thereof. 1... Cylindrical electrode, 2... Gear-shaped electrode, 3...
Outflow port, 4...Insulation support board, 5...Air supply port, 6...
...Support axis.

Claims (1)

[Scope of utility model registration request] In an ion generator that is attached to the intake manifold or carburetor of an internal combustion engine, an air outlet connected to the internal combustion engine is provided at one end of a cylindrical electrode made of high-purity nickel, and a support shaft is attached to the center of the other end to supply air. An insulated support plate with air holes is fitted, the support shaft is located at the axis of the cylindrical electrode, and a plurality of high-purity nickel gear-shaped electrodes are fitted on the support shaft at approximately equal intervals. An ion generator for an internal combustion engine, characterized in that the tip of the gear-shaped electrode is sintered and coated with alumina ceramics.