APPARATUS FOR MEASURING OF CONTENTS IN EXHAUST GASES
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United States of America Patent
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Issued Date -
May 7, 2015
app pub date -
Apr 8, 2013
filing date -
May 4, 2012
priority date (Note) -
Abandoned
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Abstract
A device (2) for sampling in the context of measuring the content of the exhaust gases in an exhaust flow (4) in an exhaust line (6) from a combustion engine. A sensor (8) is situated in a measuring chamber (10). At least two gathering tubes (12) situated in the exhaust pipe (6) are provided with apertures (14) which face towards the exhaust flow (4) and are situated in a plane (C-C) which is substantially perpendicular to the direction of the exhaust flow (4). The gathering tubes (12) divert various parts of the exhaust flow to the measuring chamber (10) to make it possible for the sensor (8) to monitor a mean value representing for example the NOx content of the exhaust gases. With a representative mean value for the NOx content of the exhaust gases, an exhaust cleaning system based on SCR technology can be regulated with good accuracy.
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