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 760Li introduce

The BMW 760Li is a high-end model in the BMW 7 Series that combines leadership, innovation, and luxury. It has excellent precision and power performance, excellent driving comfort, and a luxurious and advanced internal environment. In terms of the best driving experience, it fully embodies the leadership style of a top luxury sedan for the future The BMW 760Li is equipped with a twin turbocharged V12 engine, with a maximum output power of 400 kW/544 horsepower and a peak torque of up to 750 Nm. It is equipped with an 8-speed automatic transmission, which accelerates from stationary to 100 km/h in just 4.4 seconds. The BMW 760Li also provides better fuel economy while meeting the strict emission requirements of the European EU5 and the US ULEV II standards