Mixer for exhaust aftertreatment systems
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United States of America Patent
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Mar 6, 2018
Issued Date -
N/A
app pub date -
May 2, 2016
filing date -
May 2, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A swirl mixer for mixing a reducing agent with exhaust gas in a selective catalytic reduction (SCR) aftertreatment system is described. The swirl mixer may comprise a base permitting a flow of the reducing agent and the exhaust gas therethrough, and three arrays of fins projecting from the base in a direction of flow of the exhaust gas. The three arrays of fins may be arranged in a triangular configuration about a center of the mixer to induce a swirl motion to the reducing agent and the exhaust gas flowing through the mixer. The fins in each of the arrays may be oriented in a common direction that is rotated by about 60° from the common direction of the fins in an adjacent array.
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