Patent ID: 8359831
Filing Date: 2013-01-29
Classification: F01N,F04B,F16L,Y02T,Y10T

Abstract:
1. A reactant delivery system for engine exhaust gas treatment, comprising: a tank in which a reactant is received; a pumping device having an inlet disposed within the interior of the tank to receive the reactant, and an outlet through which the reactant is discharged; a pressure relief device having an inlet in fluid communication with the outlet of the pumping device, a primary outlet to discharge the reactant under pressure to a downstream location, and a bypass outlet through which at least some of the reactant discharged from the pumping device is selectively discharged; a reactant distribution device in fluid communication with the bypass outlet of the pressure relief device and having a plurality of outlets to distribute the reactant to at least two different locations within the tank; an absorbent filter coupled to the inlet of the pumping device to absorb and filter reactant for delivery to the pumping device; and a heater extending adjacent the pumping device and the absorbent filter.