Apparatus for introducing a reducing agent into the exhaust of an internal combustion engine
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United States of America Patent
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Sep 29, 2009
Grant Date -
Mar 29, 2007
app pub date -
Sep 7, 2004
filing date -
Sep 7, 2004
priority date (Note) -
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Abstract
An apparatus for introducing a reducing agent into the exhaust of an internal combustion engine, having a reservoir, a delivery unit, and a flow path for the reducing agent. The apparatus also has a ventilation device for ventilating the flow path and is situated at a geodetic high point of the flow path and even in the closed state, permits a return of a minimal fluid quantity to the reservoir.
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