With the development of gasoline engines in automobiles towards high speed, high compression ratio, high power, low fuel consumption, and low emissions, traditional ignition devices are no longer suitable for use. The core components of ignition devices are ignition coils and switch devices. By increasing the energy of the ignition coils, the spark plug can generate sufficient energy to produce sparks, This is the basic condition for the ignition device to adapt to the operation of modern engines. The ignition coil is divided into two types according to the magnetic circuit: open magnetic and closed magnetic. The traditional ignition coil is used with an open magnetic type, and its iron core is stacked with about 0.3 millimeters of silicon steel, with secondary and primary coils wound around the iron core. The closed magnetic type uses an iron core similar to III to wrap around the primary coil, and then wraps around the secondary coil outside. The magnetic field line is composed of an iron core to form a closed magnetic circuit. The advantage of the closed magnetic ignition coil is that it has less magnetic leakage, Due to its small energy loss and volume, electronic ignition systems generally use closed field ignition coils)
The Shenbao D20 is a car produced by Beijing Automotive Company, with front wheel drive as the driving mode. As an A0 level performance sedan also built with the SAAB quality management system, the Beiqi Shenbao D20 fully showcases the brand gene of "performance persistence" with its four major highlights of international quality, technological intelligence, fashionable design, and thoughtful service, And a comprehensive quality upgrade has been carried out on the basis of the original Beijing Automotive E-series. This car will win the favor of the post-80s consumer group who pursue fashion and pay attention to quality, and will also become a new quality benchmark in the A0 level automotive market in China
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