A compact muffler has a straight through inner cylindrical casing surrounded by an outer
cylindrical casing defining a closed ended sound attenuating chamber therebetween. Within …

Enclosures for internal combustion engines, such as those used in mobile power stations,
are designed to minimize the sound levels outside the engine compartment. Typically this is …

An exhaust muffler includes upper and lower external shells that are formed from metal
material. A heat shield is disposed in the muffler adjacent the upper external shell. The heat …

A muffler for coupling to an exhaust port of an internal combustion engine. The muffler
includes a housing having an exhaust inlet configured to receive exhaust gas from the …

1,736,319 A 11/1929 Maxim....................... 181/267 engine of a passenger Vehicle includes a
Straight through 4,006,793 A 2/1977 Robinson..................... 181/53 main pipe and a side …

An exhaust system for a small boat is constructed in such a manner that an exhaust pipe
extends rearwardly from an engine provided in a hull of the boat. A water muffler is provided …

(57) ABSTRACT A muffler for receiving exhaust gas from a combustion engine may include
a shell, an inlet pipe, at least one outlet pipe, one or more baffles, and an internal …

(57) ABSTRACT A muffler may include a shell, first and second baffles, an inlet pipe, first
and second outlet pipes, and a communica tion pipe. The first and second baffles cooperate …

(57) ABSTRACT A compact muffler has a straight through inner cylindrical casing
Surrounded by an outer cylindrical casing defining a closed ended Sound attenuating …

The present invention provides a noise attenuation assembly having at least one noise
prevention pad disposed within an annular gap formed between a gas passage tube and an …