EXHAUST VALVE DEVICE
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United States of America Patent
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N/A
Issued Date -
May 21, 2020
app pub date -
Jul 19, 2018
filing date -
Jul 20, 2017
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
An exhaust valve device includes a valve body, a valve seat, a support shaft, a coil spring, and a cushion member. The valve body is placed in an exhaust passage in a silencer, and configured to open and close the exhaust passage. The valve body abuts against the valve seat when the valve body is closed. The support shaft is fixed to the valve seat, and supports the valve body to be able to swing freely. The support shaft is inserted in the coil spring. The coil spring biases the valve body. The cushion member is interposed between the coil spring and the support shaft. The cushion member is rotatable relative to the support shaft.
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