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)

Fiesta introduce

In the summer of 1976, Ford Motor Company launched the first generation Fiesta to the market. The basic model was equipped with a 1.0-liter engine, with a power of 30 kilowatts. The entire vehicle weighed only 700 kilograms, making it the lightest among similar cars. The 1.2 cubic meters of cargo space was also the largest among similar cars. It had the best panoramic view and a drag coefficient of 0.42 compared to other cars at that time. The small drag coefficient greatly reduced fuel consumption, with a fuel consumption of only 5.6 liters per 100 kilometers at a speed of 90 kilometers per hour, At a speed of 120 kilometers per hour, the fuel consumption per 100 kilometers is 8.2 liters, and when driving in the city, the fuel consumption per 100 kilometers is 7.9 liters. Fuel economy was a key factor for the success of the Ford Fiesta in the era of energy crisis, but this was not its only advantage. Through strong technological innovation, the Fiesta proved that size is not the only measure of car value