Where is the Mercedes-Benz Weiting exhaust circulation valve?

Mercedes-Benz Weiting exhaust gas recovery valve is located at the branch pipe of automobile exhaust pipe, which belongs to exhaust gas recovery system. Its main purpose is to reduce nitrogen oxides (nitrogen oxides) in exhaust gas and improve fuel economy under part load. During the combustion process, the oxygen content below the atmosphere will decrease at the (highest) temperature, thus inhibiting the formation of nitrogen oxides (nitrogen oxides). When the combustion temperature decreases, the heat transfer between the cylinder and the combustion chamber wall and the piston surface will decrease, and the loss caused by thermal decomposition will also decrease slightly. Comparing the partial load of the fuel engine with the non-EGR partial load in the cylinder, in order to provide the same amount of oxygen (obtain the output of the same shaft), the throttle valve must be opened. Therefore, the oil absorption loss (throttle) in the oil absorption process is low, and the fuel economy will be improved. That is to say, if the piston absorbs less oxygen in one stroke, it will achieve the same effect as when the small displacement engine accelerates. Take the fuel engine as an example (under the suction capacity), the circulation rate of EGR is as high as 15%, and it will stop at idle speed and high load. As far as vehicle weight is concerned, large diesel vehicles with low engine output power have higher engine load. In order to meet the emission standards, EGR technology is usually adopted.