Abstract: An air filter and fan device for a vehicle ventilation system is disclosed that, in direction of air flow, includes an air filter, an impeller, and a flow-off channel. A casing is provided that accommodates the impeller and the flow-off channel in an enclosing manner such that the impeller is established with double-suction, receiving air from the air filter from both a first side and a second side or the impeller.

Abstract: A filter formed by the following steps is provided.

Abstract: A filter for use in absorbing heat from gases generated in a gas generating system is disclosed. The filter includes a plurality of discrete, continuous gas flow passages extending therethrough. In one embodiment, the filter is incorporated into an inflator used for inflating an inflatable element of a vehicle occupant protection system. A gas generator incorporating the filter and a vehicle occupant protection system incorporating the filter are also described.

Abstract: A method for separating and recovering oxygen-rich air from the air, comprising, using a gas separation membrane module where a laminate consisting of a permeate-side spacer for forming a permeate gas channel communicated with a hollow section in a core tube for collecting and discharging a permeate gas and two flat-film gas separation membranes sandwiching the spacer and a feed-side spacer for forming a feed gas channel are spirally wound around the core tube such that the laminate and the feed-side spacer are alternately superimposed, vacuuming the hollow section of the core tube to 95 kPaA (absolute pressure) or less by vacuuming means while feeding the air into the feed gas channel by air feed means such that a maximum feed-air flow rate and a maximum static pressure divided by an effective membrane area of the gas separation membrane are 100 m3/min·m2 or less and 4000 Pa/m2 or less, respectively, to separate and recover oxygen-rich air from the hollow section of the core tube.

Abstract: A filter element, especially for filtering intake air for an internal combustion engine, which filter element is composed of a coiled filter, through which a flow of air passes axially, and which has an annular gasket on at least one end face, the annular gasket being connected to the filter element by a welded, glued, extruded or fused connection, such that the annular gasket is inserted into a suitably constructed receptacle in a filter housing and radially and/or axially positions the coiled filter. The annular gasket is arranged directly on the end face of the coiled filter and is pressed axially and/or radially into the receptacle of the housing.

Abstract: A filter element (1) wound from a plurality of filter layers in which the circumferential contour (5, 5?) of a cross-sectional area (4) of the filter element (1) has at least one circumferential contour section (5?) undercutting the envelope contour (6, 6?) of the cross-sectional filter element area (4).

Abstract: A method and apparatus for practicing the method are provided for separating droplets of finely aerosolized elemental mercury from a gaseous stream in which the droplets are dispersed. In the method a gold plated metallic capillary surface is contacted with the gaseous stream, causing the aerosolized droplets to deposit on the capillary surface and by capillary action to coalesce with other of such droplets to form increasingly large drops of mercury. The surface is oriented to allow the mercury to flow by gravitational forces and capillary action to the lowermost portions of the surface, at which it accumulates, and is then collected at a suitable vessel.

Abstract: A filter arrangement includes a filter element, a frame construction secured to the filter element, and a handle member secured to the filter element. In preferred embodiments, the handle member is secured to the frame construction. Preferably, the filter element includes a central core member, wherein fluted filter media is coiled around the central core member. Preferably, the central core member includes a plurality of corrugations, wherein the corrugations mateably engage at least some flutes. Preferably, the handle member is integral with the central core member, and also includes a fastening member for connection to a frame construction on the filter element. Methods for cleaning air and servicing an air cleaner preferably include constructions as described herein.

Abstract: A porous filter medium forms a filter or liner for extracting hydrocarbons from vapors emitted from a motorized vehicle, device or appliance fuel tank. The filter medium is a polymer network of a foam, nonwoven or collection of particles and has fine pore size and a butane working capacity (W/W %) of 4.0 percent or higher.

Abstract: A filter well suited for paint arrestor usage having a monolithic high loft manmade fiber body with a convoluted flow contact surface. The filter is preferably formed by a convoluter as in one with a roller set and blade cutter to form mirror image fiber filter sheets from a received fiber batt. Provided is a well mixed proper fiber blend, such as one having a set of fibers made of a majority of course fibers joined by way of thermal bonding fibers which facilitate, during convoluting, formation of a crisp cut and high integrity three dimensional surface, as in one of rows of peaks separated by valleys. The projection/recess arrangement over the flow contact surface as well as the thickness and relative projection-to-base dimensions are arranged to provide a high paint holding capacity without too fast a load up of, for example, paint particles and while avoiding too great of a pressure drop within that load up time.

Abstract: A filter media including a first sheet having an inner surface and an outer surface, a second sheet having an inner surface and an outer surface, wherein the inner surface of the first sheet and the inner surface of the second sheet at least in part define at least two fluid channels between the first sheet and the second sheet to define a filter media having a first axial end and a second axial end, wherein the at least two fluid channels extend between the first axial end and the second axial end, and wherein, interior to said axial ends, the first and second sheets define at least one opening between a first one of said at least two fluid channels and a second one of said at least two fluid channels such that fluid can uninterruptedly flow between the first one of said at least two fluid channels and the second one of the at least two fluid channels, and further wherein the at least two fluid channels and the at least one opening are at least defined in part by a surface characteristic of the first sheet a

Abstract: A one aspect method of forming filter cartridge arrangements for use in air cleaners is provided. The method involves coiling a media pack with a central winding bead and cutting through the winding bead in the coiled media pack to form two media packs. An example filter arrangement is disclosed. In another aspect, a filter cartridge arrangement for use in air cleaners is provided. The filter cartridge arrangement includes a media pack including a plurality of inlet flutes and outlet flutes extending between first and second opposite flow faces and formed from an arrangement of facing sheet secured to corrugated sheet. An example cartridge includes a preform secured to the media pack. In some forms, the preform includes a grid arrangement extending across one of the flow faces. The grid arrangement can include a region of cured seal material positioned in contact with the first flow face, to secure the grid arrangement to the flow face.

Abstract: The invention relates to an apparatus for the separation of particles contained in exhaust gases of internal combustion engines in which the exhaust gas flow is guided through a filter medium in which particles can be absorbed and held back (4). The invention should improve the separation in a cost effective manner with respect to conventional particle filters. In accordance with the invention, the filter medium (1) is made from a metal open-pore foam having at least two layers (11, 12, 13) which each have a thickness, porosity and/or pore size in the flowthrough direction through the filter medium which differ from one another.

Abstract: A compact filter element and a method for sealing an end thereof are provided. The compact filter element includes a filter material formed into a winding and an adhesive element, having a predetermined size and shape, that fixes an outer end portion of the filter material to an outer side portion of the filter material. The adhesive element provides improved control of the amount of adhesive applied to the filter element, because the adhesive element has a predetermined amount of adhesive. Thus, the costs associated with the adhesive process can be reduced, by minimizing excessive use of adhesive. Also, the process of applying the adhesive element is a faster process and requires less expensive equipment to implement than a hot melt process.

Abstract: A corrugated web having tapered flutes is usable in straight-through flow filter elements. The corrugated web can be made by passage between a pair of corrugated rollers having tapered teeth. Methods of making usable corrugated rollers include methods for generating the tapered teeth at the end points and the extension between the end points. Corrugated webs may be made from a variety of media, including certain media that stretches in the machine direction. Methods of forming the corrugated web into filter elements (e.g., air filter elements) includes forming filter media by securing a flat sheet to the corrugated web. The filter media may then be wound into a filter element, including application of sealant during the winding process to close selected flutes.

Abstract: The invention provides an air filter assembly including an air filter extending along a central axis from a first end to a second end. The air filter decreases in width along the central axis from the first end to the second end. The air filter assembly also includes a filter housing partially enclosing the air filter and defining an aperture adjacent to the second end. One or more airstreams can be directed through the aperture to the air filter. The air filter assembly also includes at least one valve member rotatable about a rotation axis. The valve member pivots around the second end to block at least a portion of the aperture.

Abstract: An axial flow filter element having alternating flat and pleated layers of fluid permeable filter media which form channels with an open cross section, one end of a first group of channels and the other end of a second group of channels being tightly sealed such that fluid being filtered must pass through one of the filter layers to pass through the filter element, a peripheral seal for sealing the inflow side of the filter from the outflow side in a housing, and a support body arranged in the filter element surrounded by the channels and extending axially at least to one end face of the filter element; at least one end face of the filter element having a spacer for maintaining the end face at a distance from a supporting surface on which the filter element may be placed during handling to prevent direct contact between the end face and the supporting surface.

Abstract: A filter for use in a gas generator of a safety arrangement in vehicles, has several layers of a woven metal fabric consisting of metal wires which are woven together. The woven metal fabric is preferably calendered, wound to form a roll, and pressed to form said filter.

Abstract: Crankcase ventilation arrangements are shown. Preferred wet laid media materials, for use in such arrangements are described. Also described and shown are example crankcase ventilation components, parts for use with a preferred media described and characterized.

Abstract: A system and method for removing moisture from compressed air with the system having a membrane for passage of water vapor therethrough while preventing the flow of air therethrough and a diverter for diverting and reducing the pressure of a portion of the compressed air to enable the air at a reduced pressure to flow past one side of the membrane while the compressed air flows by the opposite side of the membrane to allow water vapor from the compressed air to pass through the membrane to the compressed air at the reduced pressure thereby providing for on-the-go reduction of amount of moisture in the compressed air.

Abstract: The disclosure concern air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided.

Abstract: A filter element comprising a spirally wound filter through which a fluid to be filtered flows axially and which is provided with a mounting ring on the circumference of the wound filter secured to the wound filter by a welded, adhesive, extruded or fused joint. The mounting ring is provided with a circumferential profiled seal which engages a housing in which the filter element is installed to provide a seal between an unfiltered fluid side of the filter element and a filtered fluid side of the filter element.

Abstract: A diesel particle filter having a ceramic filter body (1) made of a ceramic material (6) for filtering an exhaust gas stream (2) of a diesel engine. The filter body (1) has gas channels (18, 18?) with planar and porous filter segments (3), which are provided for the exhaust gas stream (2) to flow through them transversely to the face of the filter segments (3). The filter body (1) is formed by sintering at least one ceramic-impregnated fiber web (4), particularly paper, under heat such that fibers (5) of the fiber material are burned off and the ceramic material (6) is sintered together to form the continuously porous and gas-permeable filter segment (3) between its two surfaces (7, 8). At least one fiber web (4) is corrugated to form the gas channels (18, 18?) and rolled up to form the filter body (1), and the cross section of at least a portion of the gas channels (18, 18?) changes from an inlet end (33) to a discharge end (34).

Abstract: Air cleaner assemblies and components therefor are described and shown. Also methods of assembly and use are described and shown. Projection/receiver arrangements are described, for securing a filter cartridge in place within the housing. Also housing seal arrangements for the filter arrangements being sealed to the housing, and specific housing features and cartridge features are shown.

Abstract: An apparatus for filtering well fluids and method of manufacture is disclosed. The apparatus comprises an inner support, a filter spirally wrapped around the inner support, and an outer support wrapped around the filter enclosing the filter between the inner and outer supports. The filter has longitudinal edges which overlap and the filter is held in place by friction with the inner and outer supports. The method of manufacturing the apparatus comprises continuously and simultaneously wrapping a filter and outer support around an inner support and disposing the filter between the outer and inner supports.

Abstract: Embodiments of the present invention include methods and devices for trapping particulate matter suspended in exhaust from, for example, automotive diesel engines. Particulates carried in exhaust are actually a colloidal suspension of finely divided particulates in a fluid (in this case, the exhaust gases). This colloidal mixture is channeled through an open spiral exhaust channel. The particulates will differentially tend to travel through the fluid in a straight line, which leads them to collide with a fine mesh or porous material that defines the open spiral exhaust channel. The gas, on the other hand, will easily traverse the spirally shaped exhaust channel, with its molecules bouncing around the curved path of the spiral. Continuing through the device, more and more particulates will build up in the surrounding meshwork or porous material.

Abstract: A filter includes first and second sheets of filter media, the second sheet being pleated and forming with the first sheet a plurality of axially extending flow channels having lateral cross-sectional shapes with two adjacent included angles each greater than 45° and less than 75°. Forming apparatus and methods are provided.

Abstract: The present invention provides a filtration device. The invention employs filter media wrapped into spirals about an apertured core. Fluid may flow radially inward or radially outward during filtration. Embodiments using multiple filter media and embodiments achieving a low pressure drop are also disclosed.

Abstract: Disclosed herein an evaporative emission treatment device comprising: a housing; and an adsorption member disposed in the housing, the adsorption member comprising an adsorption component comprising an activated carbon textile made from a novoloid precursor.

Abstract: The present invention relates to an apparatus for filtering a gas or liquid stream such as a natural gas stream. The apparatus includes a closed vessel having a longitudinally extending length, an initially open interior, an input port at one extent and an output port at an opposite extent thereof. A partition located within the vessel interior divides the vessel interior into a first stage and a second stage. At least one opening is provided in the partition. A filter element is disposed within the vessel to extend from within the first stage. The filter element is easily mounted or removed from the vessel by rotating a J-slot engagement surface on the element which mates with a mounting structure provided in the vessel interior.

Abstract: A gas and liquid phase separator apparatus and an apparatus for energy production based on fuel cells within the phase separator.

Abstract: A filter, system and method is provided for filtering nanoparticles in a hot gas, namely particles <about 1 micron in a gas >about 200° C. and further particularly >about 450° C. including diesel exhaust. The filter includes filter media material composed of fibrous filter media having a plurality of fibers and granular filter media having a plurality of granules extending from the surfaces of the fibers. The filter is characterized by a permeability >about 3×10?12 m2 and an inertial resistance coefficient <about 1×106 m?1. The filter captures particles in the Most Penetrating Region (MPR). A filter system includes a nanoparticle filter in series with a diesel exhaust treatment element.

Abstract: A wire mesh filter is made from a knitted wire sock, folded along its length, and then wound into a spiral, and is useful for diesel traps and other particulate filters that are regenerable by heating the filter.

Abstract: The present invention relates to an apparatus for filtering a gas or liquid stream such as a natural gas stream. The apparatus includes a closed vessel having a longitudinally extending length, an initially open interior, an input port at one extent and an output port at an opposite extent thereof. A partition located within the vessel interior divides the vessel interior into a first stage and a second stage. At least one opening is provided in the partition. A filter element is disposed within the vessel to extend from within the first stage. The filter element is easily mounted or removed from the vessel by rotating a J-slot engagement surface on the element which mates with a post provided on a mounting structure provided on the vessel partition.

Abstract: The invention disclosed relates to feed spacers used in various filtration membrane modules, such as in spiral wound membranes, used in cross-flow filtration. Such spacers have an influence in promoting the mixing between the bulk of the fluid and the fluid element adjacent to the membrane surface so as to keep the membrane surface relatively clean. To optimize these properties, novel spacer designs are disclosed having a plurality of rows of elongated strands, the strands in each row being arranged substantially in parallel to one another, with adjacent rows being attached and disposed at an angle to one another, the strands of at least one row when viewed in cross-section having a central portion of a width smaller than the width of its extremities. Novel membrane modules incorporating such feed spacers are also disclosed.

Abstract: The present invention includes a membrane construction for selectively transferring a constituent to or from a fluid. The membrane construction includes a multi-layer fluid impermeable support sheet having a plurality of supports on at least one side of the support sheet that form a plurality of flow channels. At least one layer of the multi-layer support sheet is a bonding layer. A fluid permeable layer extends over the flow channels and is bonded to the plurality of the supports by the bonding layer.

Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally includes z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.

Abstract: A coating system (66, 68), winding system (158), finishing system (274, 276) and manufacturing system (FIGS. 6, 7, 22-29) is provided for spiral-wound fluted filter media (74, 130).

Abstract: An in-line filter assembly for filtering engine exhaust gases utilized by turbocharged internal combustion engine systems. The filter assembly includes an external housing having a lower housing section and an upper housing section. The upper housing section further includes an air inlet port and an air outlet port. A filter unit for decontaminating the exhaust stream is positioned below the air inlet port. An interior chamber is in communication with the outlet port and surrounds the filter unit. A spring positioned directly beneath the filter unit stabilizes the filter unit within the chamber and urges the filter unit upward into sealing engagement with the inlet port. The lower housing section also includes a sump for collecting contaminants captured by the filter unit.

Abstract: A method for manufacturing multiple channel membranes includes extruding a polymer solution through an extrusion nozzle wherein several needles are arranged through which a gas or liquid containing a coagulating agent is injected during extrusion, wherein the outer side of the extruded material is first brought into contact with a mild coagulation agent and subsequently with a strong coagulation agent. By using the method a membrane is obtained having parallel channels extending in extrusion direction, in which an active layer is situated in the channels, whereas the outer surface with respect to the active layer has no or hardly any resistance to flows of liquid. By using the method it is possible to make shapes, such as recessed portions, in the membrane circumference. Also disclosed is the use of such membranes in filtration and separation techniques.

Abstract: A particulate filter can be prevented from being damaged. The ashes can be removed from the particulate filter without by burning. A non-woven welding operation for a sealing portion can be simplified. The operability is enhanced by facilitating an insertion of a multi-layer body into a heat resisting container. The number of recycling processes executed when particulate matters such as soot are accumulated on the particulate filter is made as small as possible. A particulate filter 1 comprises an axial core 7 composed of a heat resisting metal, a multi-layer body 3 formed by winding said axial core with a multi-layer member into which a non-woven fabric 11 and a corrugated sheet 13 each composed of a heat resisting metal are tiered, and a heat resisting container 5 charged with said multi-layer body 3.

Abstract: A wet/dry vacuum cleaner includes a debris collection drum having a top opening and a power head covering the top opening of the collection drum, which has an inlet and an outlet. A rotating filter filters dust laden air and is suspended from the power head extending into the collection drum. The power head has an impeller to draw dust laden air, through the inlet, into the collection drum, through the filter, to remove particulate from the dust laden air and to discharge the filtered air through the outlet. The impeller is driver by an electric motor. A stationary blade within the collection drum scrapes an outer surface of the rotating filter, while rotating, to remove accumulated globs of debris from the outer surface of the filter and drop the debris into the collection drum.

Abstract: A green uncured pre-form (10) for an exhaust aftertreatment filter includes first and second sheets (12 and 14) of regenerable filter material, the second sheet being pleated and forming with the first sheet a plurality of axially extending flow channels (32, 80, 81) having lateral cross-sectional shapes with two adjacent included angles (34 and 36, 56 and 58) each greater than 45° and less than 75° and having wall segments (18 and 20, 68 and 70) with a thickness less than 0.8 mm, a porosity greater than 80%, and an extension height (b) between pleat tips less than 10 mm. Forming apparatus (83, 84) and methods are provided.

Abstract: An exhaust aftertreatment filter is provided with localized and efficient heating for regeneration. Electrical and/or thermal conductors are wound with filter media sheets into a filter roll and/or conductors are provided at axial ends of the filter roll and/or microwave radiation is used for localized hot zone heating. Regeneration is provided at lateral slices of the filter roll lying in a plane extending transversely and radially relative to the filter roll axis.

Abstract: A vacuum cleaner capable of efficiently separating and eliminating dust and dirt is provided. The vacuum cleaner including a body having open and closed spaces divided by a partition, a suction brush connecting port formed on the upper side of the body and interconnected with the open space, an interconnecting hole formed on the partition for interconnecting the open and closed spaces, a motor mounted in the closed space of the body for generating a suction force, and a dirt collecting unit detachably mounted in the open space of the body for centrifugally separating dirt and dust contained in the air sucked in through the suction brush connecting port by the motor.

Abstract: The present invention is directed to a device (1;1′;1″; 1′″; 1″″; 1′″″) for air cleaning, especially from electrically charged particles, the device (1;1′;1″; 1′″; 1″″; 1′″″) including an air flow channel (2;2′;2″; 2′″; 2″″; 2′″″), an air transporting mechanical fan (3;3′;3″; 3′″; 3″″; 3′″″), a precipitator (4;4′;4″; 4′″; 4″″; 4′″″), a high voltage source (5;5′;5″; 5′″; 5″″; 5′″″), the precipitator (4;4′;4″; 4′″; 4″″; 4′″″) including two band-like electrode elements that are wound several times around an axis or bobbin body (7;7′;7″; 7′″; 7″″; 7′″″), a gap distance being present betwee

Abstract: A spiral wound filter element is disclosed which includes alternating layers of filter medium and diffusion medium wrapped about a cylindrical core defining a central axis of the filter element. The alternating layers extend from a radially innermost layer of the filter element to a radially outermost layer of the filter element, the diffusion medium is defined by a continuous lengthwise sheet of mesh material, and the filter medium is defined by at least one sheet of filter material arranged along the length of the continuous sheet of mesh material. The alternating layers of filter medium and diffusion medium define three distinct radially disposed layered filtering sections surrounding the cylindrical core, and include a first filtering section having radially outer prequalifying layers, a second filtering section having middle prequalifying layers and a third filtering section having radially inner qualifying layers.

Abstract: A device is provided for cleaning air from charged particles in an air flow duct. The device includes at least one precipitator panel including one or more precipitator units that are arranged so that their inlets have a large extension relative to the cross-sectional area of the air flow duct and a relatively small extension in the direction of the air flow through the units. The precipitator panels include at least two electrode elements preferably connected to a high voltage source and located such that all air in the air flow duct passes through the respective electrode elements.

Abstract: A process for removing hydrogen sulfide from a gas stream wherein the filtering media consists essentially of calcined diatomite and between 5% and 30% by weight of ferric ions bonded to the calcined diatomite. This process is particularly efficient due to the fact that the removal of hydrogen sulfide from the gas stream is effected with a single pass adsorption performance of up to 45 mg of H2S per gram of filtering media. Other advantages include the fact that the process has the ability to remove H2S form a gaseous mixture, from a concentration of 30,000 ppm down to non-detectable levels in a single pass. Repeated in-situ regeneration of the filtering media has been proven to be a simple matter of blowing ambient air through the filtering media.

Abstract: A precipitator having a through-flowing passage for the air to be purified. The precipitator is intended to be included in an air purification device, especially for purifying air from electrically charged particles. The precipitator is electrically connected to a high voltage source and has at least two electrode elements or groups of such elements arranged at different potential relative to each other. The electrode elements being designed as band-like strips that are arranged to circle at least once, and preferably several times, around an imaginary axis at a gap distance (d), seen in radial direction relative to the imaginary axis, from adjacent electrode elements. The extension of the electrode elements in the air flow direction is essentially less than their circled length around the imaginary axis. The edge section of the electrode elements, preferably at one side only of the body of the precipitator, are fixed relative to each other by the aid of fixing material.