Mercedes-Benz will introduce stratified direct fuel for the V6 engine this year, and the application of new technology will further improve fuel economy.
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In our opinion, the application of this technology is also in response to the increasingly stringent fuel consumption and emission requirements. In fact, we are no stranger to stratified combustion technology. Volkswagen has used this technology on overseas TSI engines, but it has gradually been phased out. We suspect that Mercedes-Benz actually has the technical reserves of this technology.
The stratified combustion corresponds to homogeneous combustion. In principle, the concentration of the mixture formed by the stratified combustion technology in the cylinder is not uniform. The mixture in the inner space close to the spark plug is concentrated, away from the spark plug. The outer space (near the cylinder wall and the top of the piston) is lean.
The thermal efficiency of stratified combustion is higher, but stratified combustion technology is not perfect. Previously, this technology was gradually phased out in Europe due to the emission of nitrogen oxides (click to learn more about the technology). Mercedes-Benz said it will install a device that reduces nitrogen oxide emissions on gasoline vehicles to further reduce emissions.
After using the new technology, it is expected that the engine's power and torque output may not change, but fuel economy will increase. At the same time, with the application of more low-sulfur gasoline in the United States, the application of this technology has also been realized.
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