Purpose of the exhaust system The exhaust system helps reduce harmful emissions that occur during the combustion of gasoline in the engine. The remaining exhaust gas is discharged through the exhaust pipe located behind the car. The design of the exhaust system. The exhaust system the car is usually consists of three main components: the catalytic converter The catalytic converter is a device for purification exhaust gas for spark ignition engines. It is installed as close as possible to the motor to quickly reach operating temperature and to be effective in city traffic.
The catalyst was installed as optional equipment, rear silencer and in addition to cleaning the exhaust gas can change the exhaust sound. Acoustic performance car must conform to established norms. Silencer, depending on the size of the car and engine size, use one or more silencing. The V-like engines left and right cylinder are often managed separately, each equipped with its own catalytic converter or muffler, and then consolidated into one large muffler. Exhaust pipes Exhaust pipes – the third and final component in the exhaust system.
Exhaust pipes derive the exhaust gases from the cylinder heads in one or more pipes, and so also connect the catalytic converter and muffler. The length and cross section of exhaust pipes, as well as the type of compound used, affect the performance of the car and the sound of the exhaust pipe. Therefore, exhaust systems for cars with large engines, often set the double pipe. Exhaust pipes, catalytic converter, and muffler are connected to the main part of the system by connecting rings and ridges. Many systems, original equipment welded into one whole, for faster installation. The entire exhaust system is connected to the bottom of the car, via flexible suspension elements. Designated fixation must be carefully chosen because otherwise the vibration might be transmitted to the body and produce noise in the cabin of the car. In addition, vibration can cause the noise of exhaust pipes. The total volume of the muffler car – about three – eight times the volume of the engine. Depending on the total amount and type of mufflers, exhaust system will weigh from 8 to 40 kg.