EGR valve and cooler components

The EGR valve is a part of the exhaust gas recirculation system, whose main function is to reintroduce partially burned exhaust gas into the intake system to reduce the temperature inside the combustion chamber, thereby reducing the generation of nitrogen oxides. The EGR valve helps the engine operate efficiently while reducing emissions by controlling the amount of exhaust gas recirculation. The EGR valve is usually installed on the right side of the intake manifold, near the throttle body, and connected to the exhaust manifold through a short metal pipe. The EGR cooler plays a crucial role in the exhaust gas recirculation system. Due to the extremely high temperature of the exhaust gas discharged from the cylinder, directly entering the intake pipe can cause excessive temperature, affecting engine performance and emissions. Therefore, the EGR cooler reduces the temperature of the exhaust gas by introducing coolant, ensuring that the exhaust gas enters the intake pipe at a suitable temperature range. This can effectively reduce nitrogen oxide emissions while protecting the engine from high temperatures.