| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an exhaust valve structure preventing outbreaks of the impact noise with an impact when chattering occurs. <P>SOLUTION: This exhaust valve structure includes: an inner cylinder part that forms an introducing passage 7 of exhaust gas and that has a stay member 30; a valve element that closes and opens the introducing passage 7; and a wire mesh 60 fixed to the stay member 30 and that abuts on the valve element when the introducing passage 7 is closed. The wire mesh 60 is formed into a shape such that a diameter of the wire mesh 60 gradually increases toward a downstream side of the introducing passage 7 and a load applied to the stay member 30 when the valve element abuts on the wire mesh 60 is distributed in a diameter-increasing direction in which the diameter of the wire mesh increases. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
