An exhaust volume (20) of the type including a muffler (24) having a casing provided with an inlet (29) and an outlet (30) for passing gases and adapted to enable the muffler to be mounted in an exhaust system (14). The volume further includes an additional enclosure (26) forming an accumulation cavity communicating solely with the casing of the muffler (24) via at least one connection pipe (28), the additional enclosure (26) being placed outside the muffler (24). The additional enclosure (26) i...

An exhaust muffler (1) invention includes an entry chamber (9), a resonator chamber (15), and a baffle chamber (23) positioned in serial order between an exhaust gas inlet (3) that lets exhaust gas into the entry chamber and an exhaust gas outlet (5) from the baffle chamber that lets the exhaust gas exit to the exterior. A pass-through tube (21) provides an exhaust gas passage extending from the first entry chamber, through the resonator chamber and into the baffle chamber; and a baffle system (...

An exhaust filter having a pleated filter media mounted between end caps is disclosed herein. The filter has a construction suitable for high temperature environments such as engine exhaust systems.

The present specification discloses a muffler for attenuating exhaust noise from an internal combustion engine. The muffler includes a main chamber, an intermediate pipe, a diffuser chamber, a spark arrester, and an exhaust pipe. Exhaust gases from the engine enter the main chamber after which they flow through the intermediate pipe. The intermediate pipe extends back through the main chamber to the diffuser chamber. The spark arrester is a screen held within the exhaust muffler and removably co...

A muffler may comprise a casing having an internal volume, an inlet and an outlet, and a diverter plate dividing the internal volume into a first chamber and a second chamber. The diverter plate may comprise a baffle wall portion and at least one diverter having a deflecting surface oriented at an angle to the baffle wall portion. The baffle wall includes at least one aperture allowing fluid communication between the first chamber and the second chamber. The diverter is preferably suspended with...

An exhaust gas diffuser and acoustic element has an elongated tubular shape and is arranged horizontally and transversely to the length of a motor vehicle while secured at the outlet end of the exhaust system to act as an acoustic component and a substitute for a tailpipe spout

A simplified very low height sound attenuating muffler for flowing gases is formed from an outer tube shaped into an oval cross section to engage and be welded to a perforated straight-through gas flow tube and then the ends of the outer tube and selected intermediate portions are compressed into contact with each other to form closures at opposite ends of the muffler and at interior points which divide the muffler into chambers of various volumes that may be keyed to the frequencies to be atten...

The present invention relates generally to improvements in mufflers, or silencers for internal combustion engines. The muffler device disclosed herein comprises an improved, compact and very unique expansion chamber for receiving exhaust gases directly from an internal combustion engine. This chamber accommodates a tube-like structure which is so disposed that gases initially received by the chamber are first directed against the periphery of the tube-like structure and then into a progressively...

The exhaust cleaner of this invention generally comprises a baffle precleaner and a steam scrubber. The baffle precleaner comprises upstanding cylindrical walls, an enclosure wall fastened at the uppermost terminal end of the cylindrical walls, and downwardly projecting cone-shaped walls fastened at the lowermost terminal end of the cylindrical walls. The baffle precleaner is provided with a baffle filter at the lowermost terminal end of its cylindrical walls, and a plurality of filter screens d...

Exhaust gas from an internal combustion engine at super atmospheric pressure is cooled to its dew point at that pressure then is admixed with an aqueous aerosol comprising particles of water coated with an oleophilic surfactant and having an average particle size between 0.5 and 5 microns. The resultant mixture is expanded to reduce gas pressure to nearly atmospheric and reduce the temperature thereby condensing a significant fraction of water vapor in the initial exhaust mixture on the aerosoli...