Exhaust gas recirculation mixer device
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United States of America Patent
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Nov 8, 2016
Grant Date -
Mar 17, 2011
app pub date -
Jan 24, 2008
filing date -
Jan 24, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A device for mixing exhaust gas in an engine air intake includes a mixing chamber disposed or formed in an air intake conduit, the mixing chamber having an inlet for receiving intake air and an outlet for exhausting the intake air, and having a port between the inlet and the outlet and a mixer tube extending into the port, an end portion of the mixer tube disposed in the mixing chamber shaped as a cylindrical-section having an elongated opening facing the mixing chamber outlet and a wall facing the mixing chamber inlet, a cross-sectional area of the end portion of the mixer tube being at least 40% of a cross sectional area of the mixing chamber at a point where the mixer tube extends into the mixing chamber and an end tip of the mixer tube being spaced from a wall of the mixing chamber opposite the aperture by a distance not more than 20% of a width of the mixing chamber.
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