The urea pump in the automobile exhaust emission system is one of the core components of the selective catalytic reduction (SCR) technology. Its main function is to spray urea solution into the exhaust gas treatment system to help reduce nitrogen oxide (NOx) emissions in the exhaust gas.
The urea pump, also known as the urea metering pump, is a key component of the vehicle urea injection system. It pumps the urea solution out of the urea tank through precise metering and control, and delivers it to the urea dosing module through the delivery pipeline, and finally sprays the urea solution into the exhaust gas treatment system in an atomized form. The urea solution reacts chemically with the nitrogen oxides in the exhaust gas under the action of the catalyst to generate harmless nitrogen and water vapor, thereby achieving the purpose of purifying the exhaust gas.