Reagent injector
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United States of America Patent
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Nov 5, 2019
Grant Date -
Jun 4, 2015
app pub date -
Feb 11, 2015
filing date -
May 7, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An injector for injecting a reagent into an exhaust stream includes an outer tube extending through an electromagnet and surrounding an inner tube. A first end of the inner tube is sealingly fixed to an inner surface of the outer tube. A guide member and an orifice plate are each sealingly fixed to the inner surface of the outer tube. A second end of the inner tube is aligned by the guide member. A moveable valve member includes a pintle head guided by the inner surface of the outer tube to align the valve member with an orifice extending through the orifice plate.
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