Gasoline engine spark plug, ignition method thereof and detection method

Abstract

The invention provides a gasoline engine spark plug, which comprises a center electrode part and a grounding electrode part arranged around the center electrode part, wherein the center electrode partis provided with a wiring screw, an insulator arranged around the wiring screw and a center electrode which is arranged at the tail end of the wiring screw in a mode of being integrated with the wiring screw and protrudes from the insulator, the grounding electrode part comprises a metal shell and a grounding electrode which extends out from the metal shell at the tail end of the metal shell, andthe grounding electrode and the center electrode are arranged opposite to each other at an interval so as to form an air gap. The gasoline engine spark plug is further provided with an electromagnetic induction heating coil, wherein the electromagnetic induction heating coil is close to the tail end of the grounding electrode part and the tail end of the center electrode part and located betweenthe center electrode part and the grounding electrode part. The invention further provides an ignition method of the spark plug, which comprises a step of heating the spark plug before the ignition. The gasoline engine spark plug enables an automobile to normally start at a low temperature, enables the engine temperature to quickly rise to the normal operating temperature, and is small in pollution and capable of removing carbon deposition and prolonging the service life of the engine.

Description

technical field [0001] The invention relates to a spark plug, an ignition method and a detection method thereof, in particular to a spark plug of a gasoline engine which is ignited by generating an electric arc between a center electrode and a ground electrode and punctures the air, as well as an ignition method and a detection method thereof. Background technique [0002] A conventional spark plug has a center electrode and a ground electrode, and an electric arc is generated in the air gap between the center electrode and the ground electrode to ignite the engine by puncturing the air. [0003] But this type of spark plug usually works well at near normal temperature. At a low temperature below 0°C, especially at a low temperature below -20°C, the temperature in the cylinder is low, and ice may occur, and it is difficult for the spark plug to ionize the surrounding air when it is ignited. Therefore, at low temperature, it is difficult for the traditional spark plug to ign...

AI Technical Summary

Problems solved by technology

However, the heating effect of this scheme is not obvious, and the time required for the engine to start is very short, especially in low temperature conditions, this scheme cannot meet the temperature required by the spark plug in a short period of time.

Moreover, the heat transfer of the ceramic resistor is slow, and the heating effect of the spark plug is not obvious

And this solution only mentions simple heating spark plugs, and does not involve the problem of carbon deposition in spark plugs at low temperatures after startup

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