Nozzle diffuser mixer
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United States of America Patent
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Oct 30, 2012
Grant Date -
Jan 14, 2010
app pub date -
Jul 11, 2008
filing date -
Jul 11, 2008
priority date (Note) -
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Abstract
Exemplary embodiments of the present invention are directed towards an apparatus and method for control of fluid flow through a conduit of an exhaust system for an engine, particularly prior to an exhaust treatment device. In one embodiment, a fluid flow control device for receiving and guiding exhaust gas from an engine towards an exhaust gas treatment device is provided. The fluid flow control device includes a nozzle disposed within an exhaust conduit of the engine. The nozzle includes an inlet opening and an outlet opening for forming a first flow path through the nozzle. The nozzle is spaced from the exhaust conduit for forming a second flow path between the nozzle and the exhaust conduit. The fluid flow control device also includes an injector disposed adjacent the nozzle. The injector may be oriented to direct a pressurized fluid to the first or second flow path.
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