| 摘要 |
A reductant dosing system (14) for an engine (12) is disclosed. The reductant dosing system may have a supply of reductant (18), a reservoir (20) configured to hold pressurized reductant, and a pump (22) configured to draw reductant from the supply and discharge reductant at an elevated pressure into the reservoir. The reductant dosing system may also have a plurality of injectors (24) fluidly connected to the reservoir, and a drain valve (26) fluidly connected between the reservoir and the supply. |
