EMISSION CONTROL SYSTEM


  1. SYSTEM CONTROL


    1. A urea SCR system is used to purify NOx in the exhaust gas. The urea SCR system injects urea solution into the exhaust gas to generate ammonia. The generated ammonia produces a chemical reaction with the NOx in the exhaust gas on the SCR catalyst, breaking it down into nitrogen and water, thereby purifying the exhaust gas.

    2. The UREA SCR system is composed of a urea pump control ECU, urea tank sub-assembly, urea injector set, urea pump, No. 4 exhaust gas temperature sensor and NOx sensor (nitrogen oxides sensor).

    3. In the UREA SCR system, the urea pump control ECU controls the urea injector set and urea pump based on various signals.