Basic functions and application scenarios of urea nozzle

   The urea nozzle is one of the key components in the SCR system. It is used to inject urea solution into the vehicle exhaust to react with nitrogen oxides and convert them into harmless nitrogen and water vapor, thereby reducing nitrogen oxide emissions. . The main function of the urea nozzle is to ensure uniform and effective urea spray and control the efficiency of the emission reduction system.

   Urea nozzles are widely used in vehicles such as heavy-duty diesel vehicles and light commercial vehicles, and are an important part of reducing exhaust emissions.

Urea nozzle structure

Main parts

? External parts – urea inlet connector, urea return connector, plastic shell, mounting bolts, stainless steel body, nozzle port, etc.

? Internal parts – pressure sensor, injection solenoid valve, valve seat, urea inlet filter, liquid return restriction hole, etc.

Working principle

? Inject a certain amount of urea into the after-treatment system according to actual needs.

? Achieve spray atomization effect.

? Ensure the return flow of liquid urea through the return hole to achieve cooling effect.

Features

? The imported filter has a larger filtering area and longer maintenance intervals.

? Optimized antifreeze rubber sleeve, better antifreeze expansion capability.

? Use graphite gaskets and metal gaskets for sealing and heat insulation, which can withstand high temperatures of 150°C.