Flow paths throttling and controlling device for muffler, has side baffle blocking side opening from closed position upto control position of damper and increasingly releasing opening from control position upto opening position of damper

摘要

The device has a damper (9) controlled by dynamic pressure and flow force of a flow (11) through a flow path (12). The damper has a side baffle (15) at its side edge (16), where the side baffle extends along a duct wall (5). The side baffle blocks a side opening (13) from a closed position up to a control position of the damper and increasingly releases the side opening from the control position up to an opening position of the damper.