AIR EXHAUSTING DEVICE
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United States of America Patent
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Issued Date -
Feb 28, 2019
app pub date -
Aug 29, 2018
filing date -
Aug 30, 2017
priority date (Note) -
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Abstract
An air exhausting device includes a muffler internally divided into a plurality of chambers by a separator, an inlet pipe that couples an exhaust pipe of an engine to the muffler, and an outlet pipe that is a path to discharge an exhaust gas inside the muffler to outside air. The muffler is configured of an expansion chamber to which a downstream end of the inlet pipe opens, and a resonator chamber communicated with only the expansion chamber via a plurality of resonator pipes. Any of or both of lengths and thicknesses of the plurality of resonator pipes are different.
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