Spark plug of gasoline engine with multiple laterals and multifold gap

Abstract

The invention discloses a spark plug of a gasoline engine with multiple laterals and a multifold gap. Various improved electrodes are provided, for example, an electrode (12) is provided with multiple laterals and a multifold gap, the middle of the electrode (12) is provided with the multifold gap (18) which is favorable for opening a discharging channel and is easy to have more sparking; an improved electrode is an electrode (21) provided with multiple laterals and a multifold gap (grid plate grid) and has the transverse characteristic of multiple plates which are favorable for forming grid plate grid lattice effect so as to improve the probability of electric sparks and drum shape discharging; and a particularly improved electrode is an electrode (22) provided with a round basin with a lateral surface and a dug middle acute-angle star, which is characterized by the round basin with the lateral surface and the dug middle acute-angle star, the electrode has the basin, the top and the lateral surface so as to increase the lateral discharging front, the five-pointed star dug in the middle of the electrode is favorable for the wedge effect of the discharging gap and marginal discharging effect to form asymmetrical multi-point random discharging channels so as to contribute to improving discharging probability and removing accumulated carbon, and the acute-angle star-shaped electrode is favorable for the continuous electric spark effect, turbulence-caused spark-front torsion, mutual penetration of molecules, the increase of turbulence rate and the increase of ignition probability. The various improved electrodes are selected according to different machine types, particularly ignition angles, more or less in experimental units during practical use.

Description

technical field [0001] The invention relates to an ignition device in combustion equipment, in particular to a spark plug for a gasoline engine with multiple sides and multiple gaps, and belongs to the technical field of spark plugs for ignition-type internal combustion engines. Background technique [0002] Ignition devices used in combustion equipment, especially gasoline engine spark plugs, are widely used to introduce pulsed high-voltage current into the combustion chamber, so that the mixed gas sucked into the cylinder can be sparked and ignited, and then diffused and burned to perform work. Between the external coupler of existing spark plug and the spark cap that has rubber shell, there is the phenomenon of being loose sometimes. Although the inside of the existing spark plug is provided with a glass sealant as a resistor, it only has impedance; if an inductive reactance and a capacitive reactance are added to form a suitable RCL circuit, it will have a more ideal eff...

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Problems solved by technology

The electrodes of the existing spark plugs, as you can imagine, have the disadvantages of easy carbon formation, easy ablation, single-point flashover, and low temperature difficulties.

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