REDUCTANT DELIVERY UNIT FOR AUTOMOTIVE SELECTIVE CATALYTIC REDUCTION WITH OPTIMIZED FLUID HEATING

摘要

The reducing agent delivery unit reduces nitrogen oxide (NOx) emissions from the vehicle. The delivery unit includes a fluid injector operated with a solenoid having a fluid inlet and a fluid outlet. The inlet receives a source of reducing agent and the outlet communicates with an exhaust flow path of the vehicle to allow the fluid injector to control the injection of the reducing agent into the exhaust gas flow path. The fluid injector has an inlet tube for delivering the reducing agent between the inlet and the outlet. The coil heater is integral with the fluid injector and when energized, the inlet tube and the at least a portion of the reducing agent inductively adjacent the fluid outlet such that the unreduced volume of the reducing agent in the inlet tube is less than about 100 And is configured and arranged to heat.