On-board reductant delivery system

摘要

An on-board reductant delivery system for a motor vehicle includes a mixer/nozzle system (30) for connection to an exhaust system (16) of a motor vehicle. The on-board reductant delivery system also includes a fluid metering system (66) connected to the mixer/nozzle system (30) for metering reductants to the mixer/nozzle system. The on-board reductant delivery system further includes an air supply system (58) connected to the mixer/nozzle system (30) for delivering pressurised air to the mixer/nozzle system. The mixer/nozzle system (30) mixes the reductants and pressurised air and sprays the mixture in the exhaust system (16) of the motor vehicle to reduce NOx.