ignition coil introduce

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)

BMW 320i introduce

The dimensions of the BMW 320I model are 4531mm * 1817mm * 1421mm, with a reference price of 31000-388800 yuan. BMW started its business by producing aviation engines, so the blue color on the logo represents the sky, and the white color represents the symmetrical graphics of the propeller/blue and white markings; The predecessor of the state emblem/BMW, which is also the location of the company in Bavaria, was an aircraft factory. It was founded on March 7, 1916 and was initially famous for manufacturing streamlined biplane reconnaissance aircraft. At that time, the company's name was BFW (BayerischeFlugZeugWork), meaning "Bavarian Aircraft Manufacturing Plant", and the founder of the company was Gustan Otto, His father was a renowned inventor of four stroke internal combustion engines, and his high achievements in aviation made him ambitious in manufacturing cars. He wrote a glorious chapter in the history of automobiles, which is the founding of the BMW factory in Germany, which is loved by millions of car enthusiasts today