Muffler

摘要

Provided is a muffler comprising: an outer shell; an outlet pipe, which is formed into a tubular shape containing a pair of open end-parts and is comprising an inlet port, wherein one of the open end-parts and the inlet port are arranged inside the outer shell; a valve body formed into a plate-like shape to cover the inlet port from the inside of the outlet pipe; an axis member that pivotally supports the valve body to the outlet pipe so that the valve body pivots inside the outlet pipe; and a biasing member that applies a biasing force in the radial direction of the outlet pipe to the valve body so as to occlude the inlet port.

主权项

1. A muffler comprising;
an outer shell configured to receive exhaust gases from an internal combustion engine; an outlet pipe that is formed into a tubular shape containing a pair of open end-parts, and comprises an inlet port that is an opening passing through an outer surface and an inner surface of the outlet pipe, wherein one open end-part of the pair of open end-parts and the inlet port are arranged inside the outer shell so as to discharge the exhaust gases from the outer shell to the outside; a valve body formed into a plate-like shape to cover the inlet port from the inside of the outlet pipe; an axis member that pivotally supports the valve body so that the valve body pivots inside the outlet pipe; a biasing member that applies a biasing force in a radial direction of the outlet pipe to the valve body so as to occlude the inlet port, wherein the biasing member comprises a double torsion spring; and a resisting part connected to the valve body to increase a force to close a valve by the exhaust gases that flow from one open end-part of the pair of open end-parts into the outlet pipe and to circulate therein.