Manufacturing method of gasoline engine ignition mechanism containing off-axis center type active pre-combustion chamber

1. The present invention relates to an ignition mechanism of an internal combustion engine, and further relates to an ignition mechanism of a gasoline engine including an off-axis active pre-combustion chamber.

Background technique:

2. The active pre-chamber engine adopts lean combustion technology to improve the thermal efficiency of the engine. When the mixture in the cylinder is too lean, it is easy to cause misfire and misfire. When the local flame spreads slowly, it is more likely to cause knocking, etc., so it can The active pre-combustion chamber is used for jet flame ignition, and multiple ignition points are formed in the main combustion chamber to ensure the combustion of the lean mixture.

3. Due to the size limitation of the pre-chamber suitable for gasoline engines, the size of the active pre-chamber in the engine is generally small, the internal injector and spark plug are arranged compactly, and the ignition position of the spark plug cannot be centered in the center of the pre-chamber. The flame in the combustion chamber cannot spread from the center to the surroundings, so that the flame surface cannot spread to the nozzle holes at the same time, resulting in the asymmetry of the nozzle jet at all times.

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