What are the reasons for the urea pump not consuming urea?
1 Answers
It may be due to damage to the urea pump, blockage of the urea pipeline, or clogging of the nozzle. Below is a related introduction to the diesel engine urea pump: Introduction: The urea pump is an important component of the urea solution injection metering system. Its main function is to extract urea solution from the urea tank, maintain a certain pressure, and then deliver it to the injection unit to meet the flow and pressure requirements of the injection metering system. Expansion: The exhaust temperature of diesel engines is generally between 200-500°C, which basically meets the activity requirements of the vanadium-based catalyst used in SCR. Therefore, the NOX in the exhaust gas emitted by diesel engines quickly reacts with the urea aqueous solution to produce nitrogen and water. The urea pump is the core component of the SCR system, and its performance is closely related to the emission function of the engine. To ensure the working reliability of the urea pump meets the requirements of the SCR system, the urea pump needs to be calibrated.