Why Do Diesel Vehicles Need to Add Urea?

[JoyLee]

Diesel vehicles add urea solution to reduce exhaust emissions and protect the atmospheric environment. Here is a detailed introduction to why diesel vehicles add urea solution: 1. Purpose: The use of urea in vehicles helps to better reduce harmful nitrogen oxides in the exhaust into nitrogen and water, thereby lowering emissions and effectively protecting the environment. 2. Principle: After the engine exhaust is discharged from the turbocharger, it enters the exhaust pipe and is first converted by the catalytic converter. Then, the urea nozzle on the exhaust pipe sprays a urea aqueous solution under computer control. The urea solution reacts with nitrogen oxides in the exhaust in the SCR catalytic converter, producing a redox reaction that ultimately converts the exhaust into nitrogen and water before being discharged.