Patent ID: 6167698
Filing Date: 2001-01-02
Classification: B01D,F01N,F02B,Y02T

Abstract:
An exhaust gas purification system for an engine equipped with a turbocharger and an exhaust pipe having a NO.sub.x conversion catalyst therein, the system comprising: a reservoir for storing pressurized air received from the turbocharger; a reductant injector in fluid communication with a reductant supply, the reductant injector responsive to an injection signal for atomizing and injecting a quantity of reductant; and a mixing chamber in fluid communication with the reservoir and connected to the reductant injector, the mixing chamber in fluid communication with the exhaust pipe for introducing a quantity of air and reductant mixture from the reservoir and reductant injector into the exhaust gas flow upstream of the NO.sub.x conversion catalyst.