SYSTEM FOR MEASURING EGR FLOW AND METHOD FOR REDUCING ACOUSTIC RESONANCE IN EGR SYSTEM
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United States of America Patent
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Issued Date -
Sep 29, 2011
app pub date -
Sep 27, 2010
filing date -
Sep 25, 2009
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Abandoned
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Abstract
An intake body, systems, and method for reducing acoustic resonance in pressure tap passages include determining and/or setting the length of the drilling tap passages to a value such that the natural frequency of each pressure tap passage is outside of or does not substantially overlap with operational frequency content of an air stream in the intake body. The intake body, systems and method reduce the possibility of exciting the natural acoustic frequencies of the pressure tap passages, and can lead to improved signal-to-noise ratio when detecting EGR flow using a delta-P measurement system.
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