초록 ▼

A muffler construction having improved sound attenuation characteristics. A tapered tubular metal screen is disposed within the outlet conduit of a muffler and has a axis concentric with the axis of the conduit. The screen has a closed end preferably facing in a downstream direction with respect to

A muffler construction having improved sound attenuation characteristics. A tapered tubular metal screen is disposed within the outlet conduit of a muffler and has a axis concentric with the axis of the conduit. The screen has a closed end preferably facing in a downstream direction with respect to gas flow, and the opposite open end of the screen is attached to the conduit. The screen acts to reduce the sound levels without increasing the overall size of the muffler and with a minimum increase of weight.

대표청구항 ▼

An improved muffler construction, comprising a muffler having an inlet to receive a gas and having an outlet conduit to discharge the gas, a generally conical metal screen disposed longitudinally within the conduit, said screen having a closed end and having a large diameter open opposite end dispos

An improved muffler construction, comprising a muffler having an inlet to receive a gas and having an outlet conduit to discharge the gas, a generally conical metal screen disposed longitudinally within the conduit, said screen having a closed end and having a large diameter open opposite end disposed in engagement with the inner surface of said conduit, the interior of said conical screen being free of obstructions to gas flow.