An apparatus for removing dust and fumes from a flow of air, particularly a flow of air exhausted from an industrial work area. There is a large, cylindrical filter element mounted within a cylindrical collector barrel so as to define an annular flow space between the two. A vane assembly is mounted at the top of the collector barrel for directing the incoming flow of air along a generally cyclonic path through the flow space, so that sparks and heavy particulates are forced outwardly away from the surface of the filter element, thereby increasing filter life and reducing the chance of fire. The filter element and collector barrel are mounted atop a cabinet which encloses a blower and a silencer section. The silencer section includes one ore more chambers having interior walls for redirecting the flow of air exiting the blower, and the walls are lined with an acoustic insulation material for absorbing sound energy as the flow of air is redirected, thus reducing noise emissions from the assembly. The filtered airflow is exhausted from the cabinet in a vertical direction, away from the work area or areas.

High volume dust and fume collector

An air cleaner for an internal combustion engine, having a dust dumping valve. The air cleaner includes an outer housing containing a filter element and air is introduced into the housing and swirled outwardly before passing through the filter element for discharge. The heavier dust particles in the air are moved under centrifugal force to the inner surface of the housing and are discharged through a conical outlet in the lower end of the housing to a dust trap. The lower end of the trap is provided with a plurality of openings which are enclosed by a flexible rubber-like disc. When the engine is operating, the engine vacuum will draw the disc tightly against the openings to prevent the entrance of air into the trap. The weight of the dust collected in the trap in combination with the engine vibration will intermittently cause the rubber disc to drop away from the openings to discharge a portion of the collected dust. On stopping of the engine, the weight of the collected dust in the trap will open the disc valve to discharge the entire quantity of dust from the trap.

Air cleaner having a dust dumping valve

A transparent molded plastic lid for use on an auxiliary trash collection container used with a shop vacuum cleaner or dust collector system that permits inspection of the container contents without removal of the lid.

Transparent lid for auxiliary dust removal receptacle

Pulse jet air cleaner systems components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.

Pulse jet air cleaner systems, components, and, methods

An air filtering installation for an internal combustion engine equipped with a supercharger and a supercharger inter-cooler, in which the air filtering installation includes a centrifugal dust separator and a dry air filter with interchangeable filter insert; the centrifugal dust separator is thereby arranged on the suction side of the supercharger and the dry air filter is arranged downstream of the supercharger inter-cooler.

Air filter installation

An automatic unloading valve for an air filter in the intake circuit of an internal combustion engine, which valve comprises a ball trapped within a vertical cylindrical exhaust duct between an annular valve seat and a retaining member. The ball is caused to frequently move away from the valve seat due to variations in air pressure and vibration of the engine, at which time dust accumulated within the filter can be discharged through the exhaust duct.

Automatic dust unloading valve in a centrifugal air cleaner

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Automatic dust unloading valve in a centrifugal air cleaner