Exhaust gas treatment system for internal combustion engine, has exhaust pipe to receive exhaust gas from internal combustion engine and supply exhaust gas to exhaust gas treatment apparatus, and fluid delivery system to supply fluid

摘要

The exhaust gas treatment system (10) comprises an exhaust pipe (14) that receives an exhaust gas from the internal combustion engine (12) and supplies the exhaust gas to an exhaust gas treatment apparatus. A fluid delivery system (32) is arranged upstream of the exhaust gas treatment device and supplies a fluid. The fluid delivery system includes a fluid injector, a fluid pipe (64) in fluid communication with the fluid injector extending into the exhaust pipe for receiving fluid from a spray tip of the fluid injector. A controller (52) is provided for pressurizing the fluid injector.