JPS58158375A - Method of igniting fuel of internal of external combustion engine by irradiation of electromagnetic waves - Google Patents

Abstract

PURPOSE:To omit a spark plug used in an internal or external combustion engine, by making a part of or all of the internal or external combustion engine with a heat- resisting, magnetically permeable material or a heat-resisting, transparent material, and igniting compressed combustion gas by irradiating electromagnetic waves or laser beams. CONSTITUTION:A part of or all of an internal or external combustion engine is made from a heat-resisting, magnetically permeable material or a heat-resisting, transparent material, and fuel is charged into a combustion chamber. Electromagnetic waves emitted from a single or a plurality of electromagnetic-wave generators are radiated toward an aimed object to be ignited after changing the traveling direction of the electromagnetic waves by use of reflectors, waveguides, solid circuit elements and other means. Thus, fuel in the combustion chamber is ignited. Here, it is also possible to make the combustion chamber with a heat-resisting, transparent material and to radiate a laser beam or beams. Since, with such an arrangement, provision of a spark plug can be eliminated and many ignition points can be obtained, it is enabled to reduce incomplete combustion and to make the exhaust gas clean.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention irradiates an internal combustion engine or an external combustion engine whose combustion chamber is partially or entirely made of a heat-resistant magnetically permeable material to heat the fuel in the combustion chamber by induction heating. It concerns how to ignite.

Most current internal combustion engines use spark ignition to ignite fuel. However, with this spark ignition, the spark plug deteriorates over time, making its performance unstable and easily causing engine malfunction or failure.

However, using this method of irradiating the fuel with electromagnetic waves, there is less deterioration of the ignition device and its lifespan is longer. Furthermore, the ignition condition remains stable even after long-term use. In addition, ignition points occur at places where electromagnetic waves resonate and have high energy density, so if multiple electromagnetic waves of the same frequency are crossed or reflected to cause many resonances, many ignition points can be created. can be produced. If the number of ignition points increases in this way, fuel combustion will occur smoothly in a short period of time, resulting in higher output, less incomplete combustion, and cleaner exhaust gas. Furthermore, by changing conditions such as the direction and frequency of electromagnetic waves, it is possible to set the ignition point at a desired location.

The principle is the same as a microwave oven that heats food placed in a porcelain container. It seems appropriate for the electromagnetic waves used to be microwaves or those with a lower frequency. Also, since high-frequency electromagnetic waves are used, electromagnetic shielding should be completed to prevent pollution. Light, which is the same electromagnetic wave, and especially laser waves, should be able to be treated in the same way with a combustion chamber made partially or entirely of heat-resistant transparent material.

In putting the present invention into practical use, it would be ideal to install it in a ceramic engine, which is currently being researched. Most ceramics are magnetically permeable, and since ceramic engines operate at high temperatures, spark plug ignition is expected to cause severe deterioration of the spark plug. However, with the present invention, the performance is not limited by the high temperature condition, so it will be possible to fully bring out the performance of the ceramic engine.

It can also be used as an ignition method for engines that operate under high temperature conditions, such as rocket engines and jet engines.

The present invention can be easily applied to engines currently in use by replacing some parts of the engine, such as the cylinder head, with ceramic parts.

Although starting an external combustion engine or a diesel engine takes time and effort, the present invention will allow the engine to be started efficiently.

Patent applicant Akira Miwa■

Claims (1)

[Claims] 1. Part or all of the combustion chamber of the internal combustion engine is made of a heat-resistant and magnetically permeable material, and fuel gas is compressed within the combustion chamber. A method of irradiating electromagnetic waves and igniting this fuel gas by dielectric heating. 2. Part or all of the combustion chamber of an external combustion engine is made of heat-resistant and magnetically permeable material, and fuel is introduced into the combustion chamber. Method 3: irradiate electromagnetic waves and ignite the fuel by dielectric heating. 3. Electromagnetic waves emitted from one or more electromagnetic wave generators are propagated using reflectors, waveguides, three-dimensional circuit elements, and other devices. Method 4 for igniting fuel for internal combustion engines and external combustion engines by irradiating electromagnetic waves according to claims 1 and 2, in which the direction is changed and the waves are divided into a plurality of electromagnetic waves and then irradiated toward the target object to be ignited. Method 5 for igniting fuel in internal combustion engines and external combustion engines by irradiating electromagnetic waves as set forth in claims 1, 2, and 3, in which a plurality of electromagnetic waves are concentrated on one point of an object to be ignited, and combustion An internal combustion engine by irradiating electromagnetic waves according to claims 1, 2, 3, and 4, in which a part or all of the chamber is made of a heat-resistant transparent material, and laser waves are irradiated thereon as electromagnetic waves; How to ignite fuel for external combustion engine 6
, Claims 1, 2, 3 and 3 in which an internal combustion engine or an external combustion engine is electromagnetically shielded with a conductor such as metal or conductive ceramic in order to prevent harm from irradiated electromagnetic waves. Method for igniting fuel for internal combustion engines and external combustion engines by irradiating electromagnetic waves as described in Section 4