Engine system having secondary air injection device
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United States of America Patent
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-
Nov 24, 2020
Grant Date -
Oct 10, 2019
app pub date -
Oct 30, 2018
filing date -
Apr 4, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
An engine system having a secondary air injection device include: an engine having a plurality of cylinders; a first intake line in which intake air supplied into the cylinder flows; a second intake line in which intake air supplied into the cylinder flows; a bypass line connecting the first intake line and the second intake line; a first electric supercharger and a second electric supercharger disposed in the first intake line and the second intake line, respectively; an exhaust manifold connected with the plurality of cylinders; an exhaust line connected with the exhaust manifold such that exhaust gas flows to the exhaust line through the exhaust manifold; an exhaust gas purification device disposed in the exhaust line; and a secondary air injection device injecting air into the exhaust manifold or the exhaust line from the intake line.
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