| Engine power cycle: To start the engine, first to rotate the starter switch. The current flows from the battery to the starter motor, which drives the flywheel gear ring to rotate the engine. Piston reciprocating motion, compressed gas mixture. The cam drive system at the same time, the distributor, concealed under the action of the cam, open the ignition, generates high voltage current in the ignition coil, the rotor current is transmitted to the upper part of the electric cylinder spark plug spark. The use of the spark ignition, push the piston expansion force of mixed gas from the exploded, engine power, and drive the generator to charge the battery. Function of ignition system: The function of the ignition system is to use the electric spark method to ignite the compressed mixture in the cylinder and to make it burn. The main apparatus of the ignition system is as follows: Ignition coil: to provide a high voltage electric ignition, so it is called the high voltage coil. Electric shock type electrical appliances: in the engine need to supply the electric spark current. Electrical appliances: the high-voltage power distribution to the cylinder spark plug. The high line: the distributor is connected to high voltage electric spark plug. The spark plug: jump fire ignites the mixture in the cylinder with high voltage. High voltage power distribution method: One is the use of electrical and high-voltage lines to the high-voltage power distribution to the cylinder spark plug. The other is that the high voltage power is assigned to each cylinder. High voltage line: High voltage line is divided into two kinds, one is the high-voltage wire to spark plug (sub cylinder line or sub line), one is from the ignition coil to the high-voltage wire, which is called the central high voltage line (center line or zero line). In the current through the high voltage line is very small, but the voltage at both ends of the line is up to tens of thousands of volts, so the high-voltage wire must have sufficient resistance to high pressure, high pressure line and the working environment is very bad, the higher temperature in the automobile engine cover, dirt more, the high-voltage wire must have strong heat resistance and anti fouling ability. At the same time must reduce the radiation energy of high voltage line, so as not to interfere with car radios, computers and other devices, high pressure damping line Guochang Shenzhen motocable Co. Ltd production of imported silicone and EPDM rubber imports three yuan, which increased the service life of the high voltage line and the reduction of energy loss less high-pressure line, ignition power strong anti electromagnetic interference, excellent performance. Multi point injection and single point injection: Electronically controlled gasoline injection can be divided into two kinds of multi point injection (MPI) and single point injection (SMI). A multi point injection is each cylinder arranged a gasoline nozzle, the general person to talk about the electronic controlled gasoline injection number is to point to multi-point injection. The single point injection is the use of a gasoline nozzle jet fuel supply of each cylinder. The nozzle is generally arranged in the throttle body, throttle valve arranged in front of the intake pipe. Single point injection using the number of gasoline nozzle is less, the cost is low. But after spraying petrol through the air inlet pipe, a carburetor and almost, so can not give full play to the advantages of gasoline injection. From the point of view of cost and maintenance, single point injection practicality than favorable carburetor. Single point injection without the float chamber, and the need to pressure and injection quantity of gasoline can be, but from the control efficiency and control precision and stability of view than the good performance of carburetor. |
| Back |
QQ:21164273
Tel: 13868710828
