Abstract: A ceramic honeycomb product comprising a thin-walled ceramic honeycomb structure incorporating a plurality of parallel channels bounded by thin channel walls traversing the body from a first end face to a second end face thereof; and a composite coating disposed on at least one end face of the structure comprising a powder of an abrasion-resistant ceramic dispersed in a dried siliceous matrix.

Abstract: The apparatus and method provide an airflow to a person or group of persons or a space such as within an airplane cabin or cockpit, operating in conjunction with an air supply which produces a high velocity air stream, such as an aircraft gasper (14). Existing systems may filter, purify and/or clean the air supplied to the occupant, and the air exiting the personal air outlet may be adjusted to a relatively high velocity. The narrow, high velocity stream of air forms a turbulent boundary layer, which tends to entrain potentially foul air from the surrounding region and directs it towards the passenger. The airflow from the apparatus and method may have reduced velocity and lower thermal and humidity gradient and may be treated to remove locally-originating contaminants. The apparatus includes a housing which receives a primary stream of air, such as from an aircraft gasper (14) or personal air outlet.

Abstract: An airnet constructed of a filtering fabric sewn in the shape of a windsock is connected to the discharge end of a fan. Actuation of the fan causes ambient air to flow through the fan and into the airnet. The air passes through the filtering fabric of the airnet and particulate matter in the ambient air is trapped and retained within the airnet. The airnet and fan combined form a portable air filtration system capable of filtering the ambient air in confined spaces, such as bathrooms being finished or remodeled, in a relatively quick and efficient manner.

Abstract: An air intake (2) for a turbine engine, and a method implemented by the air intake (2) are disclosed. The air intake (2) is provided with a filter system (10) including foldable filter elements (11), arranged at the inlet section (3) of the air intake (2). In addition, the filter system (10) includes control elements (11) that exert a force along a first direction (Y) on the free end (11?) of the foldable filter elements (11) to adjust the filtering power of the filter system (10), guide members (12) of the filter system (10) serving to guide the movement of the free end (11?) induced by the control elements (13).

Abstract: An air filtration system for a vehicle includes a filter housing comprising a first wall, a second wall, and a center wall disposed between the first and second walls. An intermediate tube is disposed within an outlet port in the center wall. An air intake tube is coupled between the intermediate tube and the inlet of a stock turbocharger for a turbo-diesel L6 5.9 Liter engine. Methods for providing filtered air to a turbo-diesel internal combustion engine are also disclosed.

Abstract: A method for manufacturing a plugged honeycomb structure includes the steps of: applying a predetermined amount of the plugging slurry on a face of an end face sealing member, one end face of the masked honeycomb structure is pressed against the face to which the plugging slurry was applied of the end face sealing member to fill the plugging slurry in the predetermined cells on the one end face side, and drying at least the plugging slurry at a portion in contact with the face of the end face sealing member in a state that the face of the end face sealing member is pressed against the one end face of the masked honeycomb structure. The method can manufacture simply at a low cost a plugged honeycomb structure with reduced accumulation of deposit on an end face when the honeycomb structure is used as a filter or the like.

Abstract: The present invention is directed to porous composite materials comprised of a porous base material and a powdered nanoparticle material. The porous base material has the powdered nanoparticle material penetrating a portion of the porous base material; the powdered nanoparticle material within the porous base material may be sintered or interbonded by interfusion to form a porous sintered nanoparticle material within the pores and or on the surfaces of the porous base material. Preferably this porous composite material comprises nanometer sized pores throughout the sintered nanoparticle material. The present invention is also directed to methods of making such composite materials and using them for high surface area catalysts, sensors, in packed bed contaminant removal devices, and as contamination removal membranes for fluids.

Abstract: A system is set forth for the exothermic generation of soot depleted syngas comprising (i) reacting a hydrocarbon-containing fuel with an oxygen containing gas in a first reactor to produce the syngas and byproducts comprising CO2, H2O and soot; and (ii) introducing the syngas and byproducts into a second reactor containing a non-carbonaceous material that traps the soot for a sufficient time such that the majority of the byproduct soot is gasified via reaction with the byproduct CO2 and/or H2O to produce a syngas stream that is depleted in the soot. The system is particularly suitable for the practice of heat exchange reforming wherein a portion of the heat is recovered from the soot depleted syngas stream and used as at least a portion of the heat to facilitate the additional production of syngas via the (endothermic) catalytic reforming of natural gas and steam.

Abstract: An assembly of structural components for supporting an air filtration member is disclosed. The assembly may include an air filtration member and a framework designed to provide support to the filtration member. The framework may include a first structural component forming a lower base of the framework for supporting the filtration member and a second structural component forming an upper base of the framework for supporting the filtration member. The framework may also have an arm that is slidable within and attachable to the framework, and may be configured to provide an adjustment mechanism for the framework, such that the framework and the filtration member can be located within a number of differently sized forced air heating or air conditioning ducts.

Abstract: Data of a barometric pressure that a barometric pressure sensor outputs, and data of an air volume that an air-volume sensor outputs are input into a system control circuit. The system control circuit is provided with a table storing portion. In the table storing portion, a control table is stored. The control table is formed of a plus supplied-voltage value to fan power set by a barometric pressure value and an air-volume value, and a warning instruction. In a case that the warning instruction is selected based on the barometric pressure value and the air-volume value, the system control circuit turns on a warning-use LED so as to inform a user that a filter is clogged.

Abstract: A method of making a three-dimensional lattice structure, such as a filter used to remove particulates from a gas stream, where the physical lattice structure is designed utilizing software simulation from pre-defined mass transfer and flow characteristics and the designed lattice structure is fabricated using a free-form fabrication manufacturing technique, where the periodic lattice structure is comprised of individual geometric elements.

Abstract: A particulate filter for an exhaust system configured to manage an exhaust flow is disclosed. The particulate filter includes a housing and a wall-filtration element contained therein. The wall-flow filtration element has an inlet end and an outlet end, the outlet end having a first end-plug. The wall-flow filtration element has pores defining a porosity sufficient to trap exhaust particulates and to pass ash particles, including the first end-plug having a pore size equal to or greater than 55 micrometers and equal to or less than 250 micrometers.

Abstract: A method and system for detecting defects in a plugged honeycomb structure includes forming a sheet of light having a first color across a first end face of the honeycomb structure, generating a first reflected signal from the sheet of light at a location corresponding to a cell containing a defect in the honeycomb structure, illuminating the first end face with an incident light beam having a second color, generating a second reflected signal from the incident light beam, and capturing an image of the first and second reflected signals. After being detected, the defective cells may then be marked or repaired without relocating the plugged honeycomb structure. Apparatus and methods for marking or repairing the defective cell(s) are described.

Abstract: A tube, or duct, is constructed, drawing air from the top of the enclosed structure, or area, through the use of a high speed rotating fan, and filtered. The air is drawn through the tube, or duct, by a second high speed rotating fan to the base of the enclosed structure, where it is filtered a second time, and exhaled back into the enclosed structure. Not only does this process improve air circulation, but also energy efficiency.

Abstract: An exhaust aftertreatment system and method enables servicing by a single technician and provides singular location mounting and alignment.

Abstract: A method of blocking partial cells at the periphery of diesel filters is disclosed. The method comprises plugging the partial cells with a suitable plugging material. In one embodiment, a line of plugging material is applied to either or both of the end faces of the diesel filter along an outermost row of partial cells to block same. In another embodiment, the outermost wall the diesel filter is first beveled to form a beveled edge and uniquely off-set the partial cells. Then the beveled edge has applied thereto a plugging material, such as a line or bead. A honeycomb structure having reduced number of unplugged partial cells at the periphery is also disclosed.

Abstract: A honeycomb structure includes a bonded honeycomb segment article in which a plurality of honeycomb segments are integrally bonded on mutual bonding surfaces thereof via bonding material layers; and an outer peripheral coating layer which covers an outer peripheral surface of the bonded honeycomb segment article. The honeycomb structure has a structure in which a plurality of cells constituting fluid channels are arranged in parallel with one another in a central axis direction. Solid cells are beforehand arranged in four corners of each of opposite end faces of the honeycomb segment and/or the center of each side of an outer peripheral portion of each of the opposite end faces of the honeycomb segment, and the solid cells are integrated with the honeycomb segment.

Abstract: Systems are described for use in removing toxic airborne contaminants from a waxing environment where wax is being applied to sporting equipment. The systems include a base, at least one platform coupled to the base and an airflow generator. The at least one platform is configured to securely receive sporting equipment to be waxed. Each platform includes a first surface that is in contact with the waxing environment, an opposing second surface and at least one opening that extends between the first and second surfaces of each platform. The airflow generator is configured to generate an airflow for pulling harmful airborne contaminants through the at least one opening in each platform in a direction from the first surface to the second surface.

Abstract: A method and apparatus are provided for substantially containing dust generated along a fiber tow path extending from a creel to a compression roller in an automated fiber placement machine, by enclosing substantially all of the path of the fiber tows between the creel and the compression roller within a barrier that is substantially impermeable to dust. A dust collection apparatus may have a porous media and/or utilize an electrostatic charge for entrapping the dust.

Abstract: A method and apparatus for treating fluid are provided. The apparatus may include a housing, a fluid treatment element arranged within the housing, a mat arranged between the housing and the fluid treatment element, and a collar. The collar may have a curved length terminating at first and second ends and may be arranged within the housing proximate the fluid treatment element.

Abstract: A filter body (3) which is intended, in particular, for the filtration of particles contained in the exhaust gases from an internal combustion engine. The filter body (3) is formed by bonding filter blocks (11) using a joint (17). An outer surface (16) of the first of the blocks (11), which is disposed opposite the second of the blocks (11) and which is in contact with the joint (17), includes at least one projection- and/or cavity-type irregularity (30a, 30b).

Abstract: An exhaust treatment device is provided for a power system. The exhaust treatment device has an inlet module, a filter module, an outlet module, and a clamping element. The filter has a housing with at least one submerged flange. At least one of the inlet and the outlet modules also have at least one submerged flange. The clamping element is configured to engage the at least one submerged flange of the filter module and the at least one submerged flange of the at least one of the inlet and the outlet modules to connect the filter module to the at least one of the inlet and outlet modules.

Abstract: A filter media is disclosed. The filter media includes a plurality of channels separated by porous sidewalls extending longitudinally from a first end to a second end. The plurality of channels includes a plurality of first channels and a plurality of second channels. The first channels are open at both the first end and the second end and have a first width. The second channels are closed at the first end and open at the second end and have a second width greater than the first width.

Abstract: A filter medium for use in filtering a mobile fluid made from at least a bicomponent fiber. Other fibers, particles, or other materials can also be entrained in the filter medium. The filter medium has a substantial thickness compared to filters of the prior art. The fiber length and diameter dimensions are selected to obtain desired filter characteristics including thickness, basis weight, pore size, filtration efficiency, pressure drop, burst strength, and manufacturing efficiency. Further, a multilayer filter medium can be provided with ease. Each layer can have a different composition, pore size, basis weight, and so forth, thus providing the ability to build multiple functionality into the filter media of the invention.

Abstract: A system and method including a radially non-uniformly plugged flow-through honeycomb substrate positioned upstream of a wall-flow particulate filter for controlled thermal regeneration of the wall-flow particulate filter, the flow-through honeycomb substrate having a flow-through region including a first portion of parallel channels and a flow-control region including a second portion of parallel channels, the first portion of the parallel channels including unplugged channels and the second portion of the parallel channels including plugged channels, with the flow-control region adjusting flow distribution through the flow-through honeycomb substrate.

Abstract: An apparatus for air filtration comprises a substrate, the substrate including a first side and a second side, a plurality of openings in the substrate, each opening in the plurality of openings including a tapered edge from the first side to the second side, a plurality of layers of filter material removably attached to the substrate, the plurality of layers of filter material further including: an exposed layer and at least one subsequent layer, a plurality of openings in the plurality of layers, each opening of the plurality of openings corresponding to the openings in the substrate, an extension of the layers of filter material into the tapered edge of the openings in the substrate, the extension extends at least to the second side of the openings in the substrate, and a particulate trapping adhesive attached to the first side of each layer of the filter material.

Abstract: A honeycomb filter includes partition walls forming a plurality of cells extending in one direction, and plugging sections alternately plugging the cells at the ends of the honeycomb filter, the partition walls being formed of a porous base material having a porosity of 45 to 70%. When the average pore size of the base material measured by mercury porosimetry is (A) ?m and the average pore size of the base material measured by a bubble point method is (B) ?m, the average pore size differential rate expressed by “{(A?B)/B}*100” is 35% or less, and the maximum pore size of the base material measured by the bubble point method is 150 ?m or less.

Abstract: The present invention provides a device for detection, collection, containment, neutralization, and elimination of aerosolized contaminants, comprising a lid that fully covers an edge of a container for containment of exiting aerosolized contaminants, with the lid having housing for accommodating an article. The housing comprising a top vent aligned along atop of a bottom vent, with the top vent optionally smaller in size than the bottom vent, and with the housing, the top vent, and the bottom vent located normal to a natural vertical upward move of the aerosolized contaminants. The aerosolized contaminants are detected, collected, contained, neutralized, and eliminated and sanitized by the article within the housing, allowing only uncontaminated air out of the top vent through a natural upward movement of the aerosolized contaminants via the force of the flush.

Abstract: There is provided a dust compressing apparatus for a dust collecting unit of a vacuum cleaner. In the dust compressing apparatus, a compartment plate divides an inner space of a dust collection container into an upper foreign substance separating compartment and a lower foreign substance storing compartment, and a branching unit guides airflow. The branching unit includes a motor connection passage directed to a motor generating a negative pressure, a dust collection passage directed to the foreign substance separating compartment, and a compression passage directed to the foreign substance storing compartment. A flow passage control unit controls connections between the passages of the branching unit. A compression unit compresses foreign substances stored in the foreign substance storing compartment by moving the compartment plate to the foreign substance storing compartment using the negative pressure transmitted through the compression passage.

Abstract: An apparatus and a method for welding metallic fibers to form a knitted fabric having a predetermined width, include feeding a composite of metallic fibers to an apparatus for welding the fibers to form a knitted fabric, and separately welding a plurality of partial sections of the composite in a time period, in which the composite is at a standstill, for example through the use of a plurality of welding electrode pairs which are disposed over the width of the composite. A method for filtering exhaust gases and an exhaust-gas treatment component are also provided.

Abstract: In an air sterilization system that includes a UV kill chamber for sterilizing air that is to be supplied to users, the effectiveness of killing or neutralizing pathogens is increased by including not only a UV light source of a certain intensity but also including a particle filter and providing short duration high intensity UV radiation. In the case of a user specific system that includes a face mask to supply air to a specific user, exhaled air from the face mask may be sterilized as well, either by using the same kill chamber or by using a separate kill chamber.

Abstract: There is provided a honeycomb structure 1 including porous partition walls 2 disposed so as to form a plurality of through holes 3a, 3b extending from one end portion to the other end portion in A-axis direction, and containing cordierite as a main component. When porosity is P (%), compressive strength in the A-axis direction is C(MPa), and open frontal area is A (%); a relation of C?(600e ?0.0014AP)+0.5 is satisfied. The honeycomb structure has small pressure loss, is hardly damaged, and has excellent trapping efficiency.

Abstract: A device for depolluting a heat engine exhaust gases includes an outer casing (23) delimiting an exhaust gas circulating passageway and a particle filter (20) mounted in the passageway. The casing (23) includes a transverse break (34) along its entire periphery, the break (34) dividing the casing (23) into first and second successive segments (38, 40). The first and second successive segments (38, 40) include two mutually engaged ends. One outer end of the first segment (38) overlaps one inner end of the second section (40) along part of the length of the flow passageway. The outer end of the first segment (38) includes along its periphery at least one weakened region (50) for varying the cross-section of the outer end of the first segment (38). The device is applicable to motor vehicles.

Abstract: A neck-worn personal air filtration device for providing a zone of filtered air around or near a user's breathing zone is described. The device comprises a blower, a hose, and a neck-worn plenum including a filter. Air blown from the blower, passes through the hose and into the plenum exiting the plenum. The air is filtered by a filter for breathing by the user.

Abstract: A process for forming a laminate of a low basis weight nanoweb and a substrate includes forming a nanoweb on the surface of a collection scrim, and subsequently bringing the nanoweb into contact with a substrate coated with adhesive. The laminate is suitable for use as a gas filtration medium.

Abstract: A method of operating a plurality of clean room in a compound within a common enclosure and supplying each room with filtered air by a blower-filter unit by arranging the clean rooms and the blowers connected thereto in two parallel spaced rows with a corridor therebetween, and permitting filtered air to escape the clean rooms from beneath the walls of the clean rooms. Continuous operation of the blowers produces a bubble-like volume of air surrounding the blowers which consists primarily of clean, recirculated air escaping from the clean rooms. By arranging the clean rooms and blowers so that the clean air bubble produced by each blower overlaps the bubbles produced by at least two other blowers, the entire compound can be contained in a highly purified atmosphere consisting primarily of recirculated filtered air. A portion of the air from one or more clean rooms may be discharged in an upward direction through an opening in its top wall.

Abstract: A method and a device produce a fleece of metallic fibers in a layer in which the metallic fibers are welded to one another to form the fleece. A welding process is repeatedly carried out with regard to a portion or section of the fleece. Such metallic fiber fleeces are used, in particular, for exhaust gas treatment units in the automobile industry.

Abstract: A honeycomb structure includes honeycomb segments separated by porous partitions and having circulation holes through the honeycomb segments in an axial direction; a spacer positioned between neighboring honeycomb segments of the honeycomb segments; and a bonding layer located between honeycomb segments where the spacers are positioned and bonding the neighboring honeycomb segments. The spacer has Young's modulus in a range of 0.1 to 1.5 GPa. A ratio of area of the spacer to area of the bonding layer between the neighboring honeycomb segments is in a range of 0.2 to 30%.

Abstract: An air filtration media pack is provided having a plurality of layers of single facer media. The layer of single facer media includes a fluted sheet, a facing sheet, and a plurality of flutes extending between the fluted sheet and the facing sheet and having a flute length extending from a first face of the filtration media pack to a second face of the filtration media pack. A first portion of the plurality of flutes are closed to unfiltered air flowing into the first portion of the plurality of flutes, and a second portion of the plurality of flutes are closed to unfiltered air from flowing out of the second portion of the plurality of flutes so that air passing into one of the first face and the second face of the media pack and out the other of the first face and the second face of the media pack passes through media to provide filtration of the air. The fluted sheet includes repeating internal peaks facing toward the facing sheet and repeating external peaks facing away from the facing sheet.

Abstract: A biosafety cabinet includes one or more air filters below the work surface and a system for holding, sealing, replacing and disposing the air filters through the work access opening of the biosafety cabinet. The air filters under the work surface of the biosafety cabinet capture particulates entering the cabinet from the exterior environment and the particulates within the cabinet's work chamber. Instead of a mechanical clamp, the perimeter of the air filters are sealed using a gasket and a tape, eliminating the accumulation of the contaminants around mechanical clamps. The air filters may be accessed through the work access opening of the biosafety cabinet, packaged for disposal and removed from the biosafety cabinet without being exposed to the exterior environment. A filter cover with an adhesive surface is used to cover and lift the used, contaminated air filter within the biosafety cabinet.

Abstract: A method of and system for recirculating a fluid in a particle production system. A reactor produces a reactive particle-gas mixture. A quench chamber mixes a conditioning fluid with the reactive particle-gas mixture, producing a cooled particle-gas mixture that comprises a plurality of precursor material particles and an output fluid. A filter element filters the output fluid, producing a filtered output. A temperature control module controls the temperature of the filtered output, producing a temperature-controlled, filtered output. A content ratio control module modulates the content of the temperature-controlled, filtered output, thereby producing a content-controlled, temperature-controlled, filtered output. A channeling element supplies the content-controlled, temperature-controlled, filtered output to the quench chamber, wherein the content-controlled, filtered output is provided to the quench chamber as the conditioning fluid to be used in cooling the reactive particle-gas mixture.

Abstract: A support framework for containing a granular medium that is used to remediate corrosive vaporous pollutants in an air stream. The support framework is situated within a plenum and comprises two concentric open-lattice weave cylinders made from corrosion resistant fiberglass reinforced plastic (FRP). The cylinders are of differing diameters and the granular medium is placed into and contained within the open space formed between the inside wall of the outer cylinder and the outside wall of the inner cylinder. The open-lattice weave design allows a greater radial flow through the medium per unit of time, doing so with less pressure drop and using less energy than the prior art. The use of FRP to form the cylinder walls allows creation of large units that are suitable for use in municipal and industrial settings, which was not possible previously.

Abstract: A method of detecting leaks in the filter bags of a baghouse filter chamber that includes determining when the filter bags have been cleaned and, during a post-cleaning period after the cleaning of the filter bags, determining whether the opacity level of the exhaust of the baghouse filter chamber exceeds a predefined opacity limit. The determining whether the opacity level of the exhaust of the baghouse filter chamber exceeds a predefined opacity limit may include monitoring the opacity level of the exhaust of the baghouse filter chamber with an opacity sensor during the post-cleaning period and comparing the opacity readings during the post-cleaning period with the value of the predefined opacity limit.

Abstract: An improved catalyzed soot filter is comprised of a porous ceramic having, on at least a portion of the porous ceramic, an amorphous catalytic phase comprised of an alkali containing oxide glass having therein Si, Al or combination thereof. The improved catalyzed soot filter may be formed by contacting a porous ceramic such as mullite, silcon carbide or cordierite with an alkali containing compound that is a silicate, aluminate or alumino-siliicate and heating to a temperature sufficient to form an amorphous catalytic phase fused to at least a portion of the porous ceramic.

Abstract: A soil sampler includes a fluidized bed for receiving a soil sample. The fluidized bed may be in communication with a vacuum for drawing air through the fluidized bed and suspending particulate matter of the soil sample in the air. In a method of sampling, the air may be drawn across a filter, separating the particulate matter. Optionally, a baffle or a cyclone may be included within the fluidized bed for disentrainment, or dedusting, so only the finest particulate matter, including asbestos, will be trapped on the filter. The filter may be removable, and may be tested to determine the content of asbestos and other hazardous particulate matter in the soil sample.

Abstract: A filter system having in-situ scan capabilities is provided. In one embodiment of the invention, the system includes a downstream probe which may be rotated to scan the field of a filter installed in the system. The probe may be utilized for leak detection, velocity measurements, efficiency testing and the like. In one embodiment, one or more probes are rotated downstream of the filter to scan the downstream face of the filter.

Abstract: A filter assembly comprising a cover plate and a filter support. The filter support includes a length extending perpendicularly from an edge of the cover plate, a first edge and a second edge defining a height, a first U-shaped filter support extending from the first edge and a second U-shaped filter support extending from the second edge. The first U-shaped filter support and the second U-shaped filter support are configured to hold a filter there-between.

Abstract: A honeycomb filter for purifying exhaust gases that can almost completely burn and remove particulates accumulated on a wall portion by a regenerating process allowing residual ashes on the wall portion to easily move inside a through hole because the ashes are easily separated from the wall portion.

Abstract: Nanoporous membranes comprising single walled, double walled, and multiwalled carbon nanotubes embedded in a matrix material were fabricated for fluid mechanics and mass transfer studies on the nanometer scale and commercial applications. Average pore size can be 2 nm to 20 nm, or seven nm or less, or two nanometers or less. The membrane can be free of large voids spanning the membrane such that transport of material such as gas or liquid occurs exclusively through the tubes. Fast fluid, vapor, and liquid transport are observed. Versatile micromachining methods can be used for membrane fabrication. A single chip can comprise multiple membranes. These membranes are a robust platform for the study of confined molecular transport, with applications in liquid and gas separations and chemical sensing including desalination, dialysis, and fabric formation.

Abstract: Filtration method and device for filtering solid contaminants from a stream of a flowing fluid such as internal combustion engine intake air. An imperforate housing has a tubular inlet exiting at its downstream end into a conically divergent first wall section terminating in a maximum diameter apex. A convergent second wall section terminates at a housing outlet opening of greater diameter than that of the housing inlet. A perforate filter element disposed within the housing conical portions has an exterior configuration generally complimental to the housing interior, and thus has a first generally conical divergent section, and a second generally conical downstream section convergent from a maximum diameter apex of the filter element and defining the filter device outlet. The housing and filter element define therebetween first and second frustoconical annular fluid flow chambers of successively diminishing cross-sectional radial thickness in the direction of downstream fluid flow.