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Spark ignition control method for spark-ignited internal combustion engine

A spark-ignition and spark-ignition technology, applied in spark ignition controllers, spark ignition devices, engine ignition, etc., can solve the problem of insufficient promotion effect, and achieve the expansion of promotion of combustion and the improvement of fuel consumption rate. Effect

Inactive Publication Date: 2013-10-09
DAIHATSU MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the promotion effect of plasma on combustion has not been fully exerted

Method used

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  • Spark ignition control method for spark-ignited internal combustion engine
  • Spark ignition control method for spark-ignited internal combustion engine
  • Spark ignition control method for spark-ignited internal combustion engine

Examples

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Embodiment Construction

[0019] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

[0020] figure 1 The structure of one cylinder of a two-cylinder engine 100 which is a spark ignition type internal combustion engine equipped with a spark plug 1 is shown. In the engine 100 described above, the opening 3 of the intake port 2 and the opening 5 of the exhaust port 4 are arranged facing each other with the spark plug 1 at the center, and the spark plug 1 is attached substantially at the center of the ceiling of the combustion chamber 6 . Thus, each cylinder has two openings respectively. That is, the cylinder head 8 of the engine 100 is installed on the cylinder block 7 to form the top of the combustion chamber 6 . A camshaft 9 is attached to the intake side of the cylinder head 8 , and a camshaft 10 is attached to the exhaust side. The intake port 2 of the cylinder head 8 is opened and closed by the intake valve 11 , and the intake valve 11 performs...

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PUM

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Abstract

A method for control of spark ignition in a spark-ignited internal combustion engine that includes an ignition plug and generates plasma to ignite an air-fuel mixture, where the plasma is caused by a reaction between a product resulting from spark discharge generated by a high voltage applied via an ignition coil connected to the ignition plug and an electric field generated in a combustion chamber by an electric generation means via the ignition plug, the method including generating the electric field by a positive pulsating current. Thus, the method allows a spark-ignited internal combustion engine to promote expansion of combustion after ignition.

Description

technical field [0001] The present invention relates to a spark ignition control method for a spark ignition type internal combustion engine which promotes combustion by generating plasma by reacting an electric field generated in a combustion chamber with a product generated by a spark discharge of a spark plug. Background technique [0002] Conventionally, for example, in internal combustion engines for automobiles, a high voltage is applied between the center electrode and the ground electrode of a spark plug, and the air-fuel mixture in the combustion chamber is ignited at each ignition timing by spark discharge generated in the gap between the two electrodes. In such ignition using a spark plug, for example, it may be difficult to generate a flame nucleus due to insufficient spark energy. [0003] In order to solve such troubles during spark ignition, for example, Patent Document 1 discloses generating plasma in a combustion chamber and reacting the plasma with a spark ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02P23/04F02P3/01
CPCF02P23/04F02P15/00F02P3/01
Inventor 芹澤毅尾井宏朗谷口和久
Owner DAIHATSU MOTOR CO LTD
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