Abstract: A filter assembly for removing particulate contaminants and chemical contaminants from an incoming dirty air stream for a fuel cell. The filter assembly also includes a noise suppression element that reduces sound waves or noise emanating from any equipment, such as a compressor. The filter assembly can include a particulate filter portion for removing physical or particulate contaminants, a chemical filter portion for removing chemical contaminants, or can have both portions.

Abstract: An air cleaner device 41 which includes a main air cleaner 56 and a sub air cleaner 67 which is connected to the main air cleaner 56, and the sub air cleaner 67 is arranged parallel to the main air cleaner 56 in the longitudinal direction of main frames 55. In this arrangement, the air cleaner device does not projected sideward from a vehicle body and hence, the interference of the air cleaner device with an occupant and lowering of aesthetic appearance of a vehicle can be prevented. Further, since there is no restriction imposed by the interference of the air cleaner device with an occupant and lowering of aesthetic appearance of the vehicle, a capacity of air cleaner device can be easily ensured.

Abstract: A specially arranged vacuum loader and industrial dust collector with a perforated plate tangential cyclone separator is provided to efficiently remove, readily collect, effectively separate and safely dispose of wet, dry and fibrous materials, including liquids and slurries. The special vacuum loader and industrial dust collector has a solids-gas separation compartment comprising a tangential cyclone separator, preferably a perforated plate tangential separator, which is positioned generally alongside and laterally offset from one or more filtering compartments to minimize turbulence and re-entrainment of the collected particulate material.

Abstract: A power generation system has a power source and an aftertreatment system connected to the power source. The aftertreatment system is adapted to treat an exhaust of the power source. The aftertreatment system has a particulate filter that is dimensioned to be interchangeable with a muffler.

Abstract: An air filter housing for an internal combustion engine, which includes an unfiltered air capsule and a filtered air capsule, contains an orifice with perforations which are covered by air-permeable fabric or a sound element. Airborne sound emission occurs through these orifices and through the fabric or the sound element in such a way as to optimize the exterior and interior sounds of the vehicle.

Abstract: A filter housing assembly including a substantially frusto-conical shaped housing member having an open end portion and a substantially closed dome shaped portion, the housing member being adaptable for receiving a filter member therewithin and having at least one opening extending through the dome shaped portion for allowing air to enter therewithin. A first end cap member adaptable for engaging one end portion of a filter member is receivable within the housing member, and a second end cap member adaptable for engaging the opposite end portion of a filter member is engageable with the housing member. The second end cap member includes an opening for allowing air to exit the housing member. The housing member includes a centering mechanism engageable with the first end cap member for facilitating centering of the filter member within the housing member when the first end cap member is positioned within the housing member.

Abstract: A filter assembly for removing particulate contaminants and chemical contaminants from an incoming dirty air stream for a fuel cell. The filter assembly also includes a noise suppression element that reduces sound waves or noise emanating from any equipment, such as a compressor. The filter assembly can include a particulate filter portion for removing physical or particulate contaminants, a chemical filter portion for removing chemical contaminants, or can have both portions.

Abstract: A filter assembly for removing particulate contaminants and chemical contaminants from an incoming dirty air stream for a fuel cell. The filter assembly also includes a noise suppression element that reduces noise emanating from any equipment, such as a compressor. The filter assembly can include a particulate filter portion for removing physical or particulate contaminants, a chemical filter portion for removing chemical contaminants, or can have both portions.

Abstract: An air filtration system for purifying an air stream, such as the intake air for an internal combustion engine, including a system plate (10), an unfiltered air zone (13), a filter housing (12) containing a filter element (16), and a filtered air zone (19). The filter element hermetically seals and separates the unfiltered air zone (13) from the filtered air zone. The unfiltered air zone (13) is configured by a first half shell (11), which is connected to the system plate (10) in a fixed, hermetically sealed manner. The filter housing (12) is also connected to the system plate in a fixed and sealed manner. The permanent, air-tight connection of the first half shell to the system plate allows the air filtration system to be manufactured in a simpler, more rapid and more cost effective manner by obviating the need for seals and connecting elements, as well as the need to assemble such parts.

Abstract: A power generation system has a power source and an aftertreatment system connected to the power source. The aftertreatment system is adapted to treat an exhaust of the power source. The aftertreatment system has a particulate filter that is dimensioned to be interchangeable with a muffler.

Abstract: An air cleaner intake door is provided. An air cleaner with at least one sidewall and an opening defined in the sidewall has a door mounted over the opening. The door is rotationally movable between an open and a closed position and a cam extends from the door. A spring is in contact with the door for biasing the door towards a closed position.

Abstract: 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.

Abstract: An air filter for an internal combustion engine includes an air filter housing, the walls of which encompass a filter compartment in which a filter element is positioned, having an intake and an exhaust. Openings that can be sealed off or opened up based upon the operating conditions of the internal combustion engine are provided in a least one wall of the air filter housing. In this way, effective modulation of induction noise (sound modulation) can be achieved in a simple way and manner.

Abstract: An air induction system with active noise control includes a self-cleaning air filter that is integrated within an air intake housing. The self-cleaning air filter filters out contaminants such as dust and dirt particulates from air flowing through the intake housing. The self-cleaning filter is powered and controlled by the same electronic unit that is used to power the active noise control system.

Abstract: An air cleaner assembly 10 includes a filter located within a housing 12 between an air inlet 20 and outlet 22 for filtering airflow therebetween. The air inlet 20 extends from the housing 12 to communicate with an air intake port located at a vehicle location where fresh air is available. A resonator device 28 is mounted within the housing 12. The resonator device 12 includes a resonator volume 30 and a tuning neck 32. The resonator volume 30 fits into the housing 12 to reduce bulk and readily lend itself to adaptation to space requirements. The tuning neck 32 is mounted within the outlet 22 such that noise and vibration are communicated directly to the resonator device 28.

Abstract: A method of anti-pollution for exhaust and a device thereof provide a closed housing filled with filter materials and clearances between the filter materials. A discharge part of the exhaust is connected to an inlet hole disposed at an end of the housing and an outlet hole is disposed at another end of the housing for guiding the treated exhaust out. The exhaust is guided into the housing and a plurality of contaminating particles in the exhaust are left in the housing and the pollution resulting from the treated exhaust can be reduced greatly before being guided out from the housing.

Abstract: A specially arranged industrial dust collector with multiple filtering compartments is provided which is efficient, effective, and economical. The special industrial dust collector has a solids-gas separation compartment which is positioned generally alongside and laterally offset from multiple filtering compartments. The multiple filtering compartments can contain cartridge filters or other filters. The solids-gas separation compartment can contain a tangential cyclone separator or another type of solids-gas separator.

Abstract: An air filter (10) for an internal combustion engine of a motor vehicle designed to transmit sound into the passenger compartment or driver area in order to inform the driver of the operating state of the engine. The air filter includes an air filter housing (11), a filter insert (26), an air inlet (12) for unfiltered air, and an air outlet (13) for filtered air. The air filter housing (11) includes a housing wall (22) in or on which at least one membrane (16) is mounted. The membrane (16) is made of a material which is more permeable to sound than the rest of the housing wall (22), so that the shape and position of the membrane can be used to achieve a desired sound generation and distribution.

Abstract: An air cleaner includes a slide retention structure which engages a sliding resonator volume. The volume slides along the slide retention structure into an assembled position. Once assembled, a tuning tube engages an aperture in the volume, the volume and the resonator assembly reducing noise produced by the engine. A flexible seal is positioned around the aperture to acoustically seal the resonator volume to the tuning tube. An air cleaner cover is secured to the box by a lock plate. To lock the cover to the box, the lock plate is slid so that a plurality of wedges on the plate are forced under hooks on the box, securing the cover to the box. A side opening located proximate to the wedges allow the lock plate to slide so that the hooks do not hinder the movement of the lock plate.

Abstract: A multi-component hollow structure including at least two synthetic resin housing parts (1, 3) with corresponding sealing surfaces (2, 4), and at least one half wall per housing part, in which the half walls of one housing part meet corresponding half walls of the other housing part in order to reinforce the hollow structure, and in which the corresponding sealing surfaces (2, 4) and the half walls (6, 7) are joined using a friction force, such as vibration welding or ultrasonic welding. A method for producing such multi-component hollow structures is also disclosed.

Abstract: An enclosure for an air aspirating machine, such as a compressor 11 for a fuel cell drive 13, which represents a closed volume, so that said volume can be used acoustically for the air that is being drawn in. An air intake 17 is extended into the enclosure 12, which is made of a sound damping and absorbing material 18, so that the resonant cavity 19 acts as a series resonator. The air is drawn in via an air inlet 21 of the compressor 11. Alternatively, the resonant cavity can also be used as a parallel resonator in that the intake path for the air is sealed within the enclosure 12 and is provided only with sound communicating openings to the resonant cavity.

Abstract: An air treatment appliance for treating surrounding air including a body. A spider-mount mounted to the body has a motor mounted thereto in cantilever fashion. A fan attached to the motor may be a radial fan, and is operable to draw in surrounding air and cause it to flow through the appliance. A grommet between the motor and the spider-mount dampens vibrations from the motor. A filtering mechanism in the path of the airflow helps filter out undesirable material from the surrounding air. A radial airflow guide downstream from the fan efficiently guides the airflow to be expelled in a predetermined direction. The motor is at least partially accommodated by the spider-mount and the fan. The apparatus results in reduced noise and vibration during operation of the appliance.

Abstract: An air treatment plant includes a waste gas vent connected to structure (50) for attenuating the noise conducted by this waste gas. The noise attenuation structure (50) is a substantially closed and at least partially buried enclosure (52). The invention applies especially to plants for separating air by pressure swing adsorption.

Abstract: An air filter (10) for an internal combustion engine of a motor vehicle designed to transmit sound into the passenger compartment or driver area in order to inform the driver of the operating state of the engine. The air filter includes an air filter housing (11), a filter insert (26), an air inlet (12) for unfiltered air, and an air outlet (13) for filtered air. The air filter housing (11) includes a housing wall (22) in or on which at least one membrane (16) is mounted. The membrane (16) is made of a material which is more permeable to sound than the rest of the housing wall (22), so that the shape and position of the membrane can be used to achieve a desired sound generation and distribution.

Abstract: An air cleaner includes a slide retention structure which engages a sliding resonator volume. The volume slides along the slide retention structure into an assembled position. Once assembled, a tuning tube engages an aperture in the volume, the volume and the resonator assembly reducing noise produced by the engine. A flexible seal is positioned around the aperture to acoustically seal the resonator volume to the tuning tube. An air cleaner cover is secured to the box by a lock plate. To lock the cover to the box, the lock plate is slid so that a plurality of wedges on the plate are forced under hooks on the box, securing the cover to the box. A side opening located proximate to the wedges allow the lock plate to slide so that the hooks do not hinder the movement of the lock plate.

Abstract: An apparatus which absorbs gas that has been discharged from a pipe at a high velocity and which releases the gas to the atmosphere at a reduced velocity and with relatively low noise. The apparatus includes a container which has a container interior, a container inlet through which the gas enters the container interior, and a container outlet, preferably located at the top of the container, through which the gas is released to the atmosphere. The container further includes a container expanded section and a container main section. The container expanded section, which acts to reduce the velocity of the gas, is located intermediate the container inlet and the container main section and has an inner surface cross-sectional area which expands from the container inlet to the container main section. The container also includes deflector vanes for diverting the flow of the gas within the container interior towards the container outlet.