Method and apparatus for directing exhaust gas and reductant fluid in an emission abatement system

摘要

A diverter valve includes a valve member positionable between a number of valve positions to selectively divert both engine exhaust gas and a reductant fluid between a number of emission abatement devices. The valve may be used to divert engine exhaust gas to a first NO_X trap while contemporaneously diverting reductant fluid to a second NO_X trap. A method of operating a diverter valve of an emission abatement assembly is also disclosed.