Folding coaxial cavity microwave igniter for engine of automobile

A technology of automobile engine and coaxial cavity, which is applied in the direction of engine ignition, engine components, machine/engine, etc., can solve the problems that cannot meet the actual needs of microwave ignition technology, and achieve the coupling degree that is easy to adjust, easy to design, and structurally symmetrical Effect

Inactive Publication Date: 2011-07-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current common plasma exciters do not have the above characteristics and cannot meet the actual needs of microwave ignition technology.

Method used

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  • Folding coaxial cavity microwave igniter for engine of automobile
  • Folding coaxial cavity microwave igniter for engine of automobile
  • Folding coaxial cavity microwave igniter for engine of automobile

Examples

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Effect test

Embodiment 1

[0020] A folded coaxial cavity microwave igniter for an automobile engine, comprising an inner conductor and an outer conductor; the outer conductor is formed by sealing the outer contour of the outer conductor and the inner contour of the outer conductor; the outer contour of the outer conductor includes at least one The external thread 21 connected to the cylinder and a hexagonal prism working surface 23 for easy disassembly and installation; the inner contour of the outer conductor is a cylindrical surface structure with different radii, including the outer conductor inner contour-31 corresponding to the inner conductor tip 5 respectively , outer conductor inner contour two 32 corresponding to inner conductor one 41 and outer conductor inner contour three 33, outer conductor inner contour four 34 corresponding to inner conductor two 42, outer conductor inner contour corresponding to inner conductor three 43 Five 35; the inner conductor is composed of inner conductor one 41, ...

Embodiment 2

[0024] A folded coaxial cavity microwave igniter for an automobile engine, comprising an inner conductor and an outer conductor; the outer conductor is formed by sealing the outer contour of the outer conductor and the inner contour of the outer conductor; the outer contour of the outer conductor includes at least one The external thread 21 connected to the cylinder and a hexagonal prism working surface 23 for easy disassembly and installation; the inner contour of the outer conductor is a cylindrical surface structure with different radii, including the outer conductor inner contour-31 corresponding to the inner conductor tip 5 respectively , outer conductor inner contour two 32 corresponding to inner conductor one 41 and outer conductor inner contour three 33, outer conductor inner contour four 34 corresponding to inner conductor two 42, outer conductor inner contour corresponding to inner conductor three 43 Five 35; the inner conductor is composed of inner conductor one 41, ...

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Abstract

The invention relates to a folding coaxial cavity microwave igniter for an engine of an automobile, belonging to the technical field of microwave application. The igniter is manufactured by the integration of a one fourth wave length coaxial resonant cavity, a folding coaxial coupling structure, a step coaxial matching structure and an N type radio frequency coaxial connector; through the N type radio frequency coaxial connector and the step coaxial matching structure for hectowatt order of magnitude input power, the microwave power is coupled into the one fourth wave length coaxial resonant cavity by the folding coaxial coupling structure, then the microwave power is transmitted into an air cylinder of the engine by the coaxial resonant cavity, high electric-field strength can be realized at the tail end of the igniter to broken down the oil-gas mixture around the tail end to generate plasma, thus the gas combustion in the whole combustion chamber and the full combustion of the oil-gas mixture can be realized rapidly. The folding coaxial cavity microwave igniter for the engine of the automobile provided by the invention is similar to the existing ignition plug, and can directly replace the existing ignition plug can be replaced directly on the condition of unchanging the air cylinder structure of the engine; and the igniter is in integrated design, the degree of coupling is easy to control, the igniter has the characteristics of high ignition efficiency, low manufacturing cost, good repeatability and the like.

Description

technical field [0001] The invention belongs to the field of microwave application technology and relates to an ignition device for an automobile engine. Background technique [0002] Spark ignition has always been the core technology of gasoline engines, which uses spark plugs to generate sparks to burn the compressed combustible mixture. However, in the above-mentioned combustion process, a lot of potential energy is not utilized, and the combustion is insufficient and the combustion efficiency is low. With the continuous consumption of energy in the world and the continuous rise of oil prices, improving the combustion efficiency of the ignition system has become an effective way to alleviate the pressure of energy shortage. Microwave ignition technology achieves ignition by irradiating microwave power in the combustion chamber of the engine, which can eliminate the conventional stratified combustion with poor efficiency, and the combustion of the mixed gas is faster and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02P23/00H05H1/46
Inventor 樊勇程钰间郑伟
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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