EXHAUST PURIFICATION DEVICE AND VEHICLE
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United States of America
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Issued Date -
Mar 31, 2022
app pub date -
Nov 25, 2019
filing date -
Nov 25, 2019
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Abstract
This exhaust purification device is provided with: an exhaust pipe through which exhaust gas generated in an internal combustion engine flows; a selective reduction catalyst which is provided in the exhaust pipe and which promotes reduction of nitrogen oxide in the exhaust gas; a reducing agent supply unit which is provided in a stage before the selective reduction catalyst in the exhaust pipe and which supplies a reducing agent for reducing nitrogen oxide in the exhaust gas; and a blocking unit which is disposed between the reducing agent supply unit and the selective reduction catalyst in the exhaust pipe and which, when a reducing agent solid flows through the exhaust pipe together with the exhaust gas, cuts off movement of the reducing agent solid towards the selective reduction catalyst.
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