Abstract: A filter element that has at least two, planar, non-curved filtration panels. In a preferred embodiment, the filter element has three panels, providing a generally triangular filter element. The outlet aperture, from the filter element, generally follows the configuration of the filter. That is, a filter element having three filtration panels will have a generally three-sided outlet aperture. The outlet aperture preferably is not a true polygon, but rather, includes rounded or curved sides and/or corners. The filter element includes an outlet sealing configuration that may provide both axial and radial sealing to outlet ductwork.

Abstract: A filter system for an explosion-proof enclosure is described herein. The filter system can include a pre-filter assembly located outside the explosion-proof enclosure. The pre-filter assembly can include a pre-filter material configured to control air passing therethrough. The filter system can also include a filter assembly coupled to the pre-filter assembly. The filter assembly can further control the air received from the pre-filter assembly and passing therethrough into the explosion-proof enclosure.

Abstract: In an air filter unit (10) comprising at least one main air filter (1) and an auxiliary air filter (2) that is connected by an air conduit (3) to the main air filter (1) and has at least one auxiliary filter element, the auxiliary filter element is formed, at the unfiltered air side of the main air filter (1), by an at least partially porous wall of the air conduit (3) closed off at the intake side. In the reverse case, when installing at the filtered air side, the auxiliary filter element is arranged within the air conduit connected to the main air filter.

Abstract: A fluid system for a pump circuit (10), in particular a hydraulic high-pressure pump circuit, has a function block (12). In the housing of the function block, fluid-conducting paths extend and are connected to valve components (32, 46) at least partially. A filter device is an at least partially integrated constituent part of the function block of the fluid system. The filter device (46) with its filter housing (56) can be connected to the function block (12) such that at least one filter element (70) is received in the installation space (72) of the function block.

Abstract: In order to provide an improved multistage oil separator, in particular for the use with compressors in cryogenics, the oil separator includes a housing (10) having a gas inlet (18) and a gas outlet (20), and at least two filter elements (26, 28) arranged as a cascade in the housing between the gas inlet (18) and the gas outlet (20).

Abstract: Combustion turbine air intake filter assemblies, their components, and methods of use are disclosed. In certain embodiments, the assemblies may be useful, inter alia, for extending high efficiency filter life, reducing turbine downtime for filter assembly changeouts, or adjusting filter assemblies to address changing local conditions after the assemblies have been put into service.

Abstract: An oil separator separating oil contained in coolant gas includes an inlet part provided on the upstream side in a passage through which the coolant gas flows, and including a gas inlet port to introduce the coolant gas; an outlet part provided on the downstream side in the passage and including a gas outlet port to lead out the coolant gas and an oil discharge port to discharge the separated oil; a first filtration part provided between the inlet part and the outlet part and configured to filter out the oil from the coolant gas; a second filtration part provided on the downstream side of the first filtration part with a gap between the first and second filtration parts, and configured to filter out the oil from the coolant gas; and an oil separating part including a perforated plate provided on the downstream-side end face of the first filtration part.

Abstract: A multi-layer bag assembly is used with a housing for collecting particles from air flowing through the multi-layer bag assembly. Multi-layer bag assembly includes at least two bags arranged one inside the other. Each of the bags includes an air permeable filtering material for collecting particles carried by air flowing through the material. The air permeable filtering material being may be the same or different for the at least two bags. The multi-layer bag assembly includes structure for holding the at least two bags in a wide open position. The structure may be a cooperating bag structure incorporated in the at least two bags for cooperating with the housing for selectively holding the respective bags in their respective open conditions. The structure may also be a removable collar attached to at the open portion of the at least two bags, where the removable collar is part of an integral collar of the multi-layer bag assembly.

Abstract: A system for use with an inlet of a gas turbine through which an airflow toward the gas turbine proceeds is provided and includes a first self-cleaning stage to remove dust, snow and ice from the airflow, a second water tight stage, disposed downstream from the first stage, to prevent aerosol droplets and aqueous solutions of deliquesced particulates, which include at least portions of the dust not removed by the first stage and which are re-released into the airflow from the first stage, from proceeding along the airflow and to remove solid particulates not removed by the first stage from the airflow, and a third water removal stage, disposed downstream from the second stage, to remove from the airflow aerosol droplets leaking from the second stage.

Abstract: The present invention relates to a separating apparatus for separating particles from a fluid flow. Particularly, but not exclusively, the invention relates to a vacuum cleaner having such a separating apparatus for removing dust particles from a dust laden airstream. The separating apparatus includes a first cyclonic cleaning stage, a second cyclonic cleaning stage arranged downstream from the first cyclonic cleaning stage, and an elongate filter arranged downstream from the second cyclonic cleaning stage, wherein the filter is at least partially surrounded by the first cyclonic cleaning stage.

Abstract: The invention relates to diesel soot particulate filter cartridge having a central filter cartridge axis. The filter cartridge has a radial flow. The filter cartridge comprises a porous structure. The porous structure is coiled around the central filter cartridge axis. The porous structure comprises non-sintered metal fibers, said fibers having a roughness being higher than 1.7. The invention further relates to a method of manufacturing a diesel soot particulate filter cartridge. Furthermore the invention relates to a multicartridge diesel soot particulate filter. The flow through the multicartridge diesel soot particulate filter is axial while the flow through the filter cartridges is radial.

Abstract: A filter device has a filter housing and a filter element that is exchangeably arranged in the filter housing. A housing cover for closing the filter housing is provided. Interacting locking elements are arranged on the filter element and on the housing cover wherein the interacting locking elements have a locked position and a release position and are moveable between the locked position and the release position.

Abstract: An apparatus and a method for filtering sectioning wastes of a microtome that are present in an air stream are described. The apparatus has an aspiration device with which sectioning waste can be aspirated from a blade region of the microtome with an air stream. A main filter and a prefilter are provided. A valve is provided for opening and closing an opening so that the air stream so that if desired an air stream can be directed through a filter insert in the prefilter for emptying the prefilter into the main filter. According to the method, an air stream that is used for aspirating sectioning waste from a blade region of the microtome is shut off immediately before emptying the prefilter.

Abstract: A filter for filtering a fluid has a filter housing and a filter element arranged in the filter housing. A cyclone preseparator is arranged upstream of the filter element, wherein a fluid to be cleaned is guided through the preseparator to the filter element. The cyclone preseparator has at least two cyclone cells that have a different diameter, respectively.

Abstract: A system for use with an inlet of a gas turbine through which airflow toward the gas turbine proceeds is provided and includes a first stage to remove primary aerosol droplets from the airflow by coalescing the primary aerosol droplets into secondary aerosol droplets, which are larger than the primary aerosol droplets, and to remove solid particulates from the airflow, a second water tight stage, disposed downstream from the first stage, to prevent the secondary aerosol droplets and aqueous solutions of deliquesced particulates, which are not removed by the first stage and which are re-released into the airflow from the first stage, from proceeding along the airflow and to remove solid particulates not removed by the first stage from the airflow, and a third water removal stage, disposed downstream from the second stage, to remove from the airflow the remaining secondary aerosol droplets leaking from the first and second stages.

Abstract: A honeycomb structure includes a porous silicon carbide honeycomb fired body and a silicon-containing oxide layer. The porous silicon carbide honeycomb fired body has at least one cell wall defining a plurality of cells extending along a longitudinal direction of the silicon carbide honeycomb fired body. The plurality of cells is provided in parallel with one another. The silicon carbide honeycomb fired body contains silicon carbide particles. The silicon-containing oxide layer is provided on a surface of each of the silicon carbide particles. The silicon-containing oxide layer has a thickness of from about 5 nm to about 100 nm measured with an X-ray photoelectron spectroscopy.

Abstract: The invention relates to a filter device (10), especially an air filter for an internal combustion engine, in which a main filter element (22) is arranged in a filter housing (12). The main filter element is flown through by a fluid to be filtered. The main filter element (22) is embodied as a multi-bellows filter having at least two radially nested filter bellows (32, 34). Between the filter bellows (32, 34) a flow space (44) for the fluid is formed communicating with an end face of the main filter element (22), wherein each one of the filter bellows (32, 34) is embodied as a star-shaped filter with filter folds arranged in a star shape. On at least one end face of the main filter element (22) there is a seal (36) between one of the filter bellows (32, 34) and the filter housing (12).

Abstract: A filter arrangement for removing impurities from a fluid is disclosed, the filter arrangement (10) includes a plurality of screen portions (18, 20) through which the fluid passes. The screen portions include a first screen portion (18) and a second screen portion (20) separated by a predetermined distance. The predetermined distance can be determined on the basis of a threshold particle length. In one form the filter arrangement (10) is mounted in a housing (16) which is configured to receive two filter elements (18, 20) arranged in a nested configuration. A particle detector using the filter is described.

Abstract: An apparatus and a method for filtering sectioning wastes of a microtome that are present in an air stream are described. The apparatus has an aspiration device with which sectioning waste can be aspirated from a blade region of the microtome with an air stream. A main filter and a prefilter are provided. The direction of the air stream can be reversed and a filter insert in the prefilter can be rotated for emptying the prefilter into the main filter. According to the method, the prefilter is only emptied to the main filter after all the sections of a block that are to be produced with the microtome have been produced.

Abstract: A filter body having a housing, a cavity for holding a filter media, intake ports each configured to receive an intake tube, and a plurality of intake port flaps configured for movement between a first position which restricts passage of a gas or liquid and a second position which allows passage of a gas of liquid. In one aspect, a filter body has flaps that have a magnet and the housing has an attracting material configured to attract the magnet in at least one of the flaps and configured to hold a flap in the first position. In another aspect, a filter in which a portion of the housing comprises an attracting means is configured to hold a flap in the first position. In another aspect, a filter having a housing configured to hold a filter media has a plurality of fluid passage holes and hole covers, in which the hole covers and an area adjacent to the holes on the filter housing each have an attracting material for holding the hole covers in a position.

Abstract: A gas-particulate filter canister includes a filter canister body and first and second canister end caps secured to opposing ends of the filter canister body. First and second filter cartridges are supported within the filter canister body for filtering a gas in series. The filter cartridges can be standalone units which are built independently and are installed into the filter canister body. The filter cartridges can be concentrically arranged and can include a particulate filter cartridge and a gas filter cartridge.

Abstract: A filter element that has at least two, planar, non-curved filtration panels. In a preferred embodiment, the filter element has three panels, providing a generally triangular filter element. The outlet aperture, from the filter element, generally follows the configuration of the filter. That is, a filter element having three filtration panels will have a generally three-sided outlet aperture. The outlet aperture preferably is not a true polygon, but rather, includes rounded or curved sides and/or corners. The filter element includes an outlet sealing configuration that may provide both axial and radial sealing to outlet ductwork.

Abstract: A system and process for gas homogenization is disclosed. This has application in the areas of generation of gas and its conversion to electricity in downstream applications. The homogenization system minimizes variance in the gas characteristics (composition, flow, pressure, temperature), thereby rendering a steady stream of gas of consistent quality to the downstream machinery. This homogenization system can be adjusted to optimize the output gas stream for specific end-applications, or to optimize the output gas stream for different input feedstocks. This ensures that overall conversion efficiencies are maximized while keeping the process cost-effective. Such a uniform, steady output gas stream has a wide range of applications in the broad areas of generation of electricity (e.g. using internal combustion engines and combustion turbine engines), chemical synthesis (e.g.

Abstract: Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful applications including the formation of filter materials.

Abstract: There is provided an exemplary dust trap and a system and method for filtering air. An exemplary dust trap comprises a housing with an air intake. The exemplary dust trap also comprises a plurality of screens disposed within the housing downstream of the air intake and configured to pass air and capture airborne contaminants, wherein the screens are configured to provide an unscreened air passage between the screens.

Abstract: An air cleaner 10 includes an air cleaner case 3 having an inlet 1 for introducing air and an outlet 2 for ejecting air. An intake pipe 5 having an intake opening 4 opened upward or obliquely upward in the air cleaner case 3 is connected to the outlet 2. The air cleaner 10 includes a main air filter element 6a positioned above the intake opening 4 and an auxiliary air filter element 6b, which is separate from the main air filter element 6a, positioned above the intake opening 4 but below the main air filter element 6a. The main air filter element 6a is configured to be detachable from the air cleaner case 3 with the auxiliary air filter element 6b fixed in the air cleaner case 3.

Abstract: A filter assembly includes a laterally extending filter element having an element plate extending laterally outwardly therefrom and mounted between axially spaced first and second housing shells. First and second sets of one or more windows are formed axially through the element plate and define a flow path through the assembly.

Abstract: A high cleaning efficiency room air cleaner with a slim profile providing a clean air delivery rate sufficient to clean any ordinary size room includes a flat-panel housing having an internal chamber sized to receive conventional large area flat-panel furnace filters of standard size and a fan array preferably of high efficiency, low power axial computer fans mounted to the flat-panel housing. The room air cleaner may include a scent cartridge and a UV lamp assembly.

Abstract: A radial flow filtration system includes a housing and one or more generally cylindrical filter cartridges including a filter cartridge shell and a filter section. The filter cartridge is removable with respect to the housing and the filter section in removable with respect to the filter cartridge shell.

Abstract: A mounting mat for an exhaust gas treatment device including inorganic fibers, organic binder, high temperature resistant inorganic microspheres, and optionally intumescent material. The exhaust gas treatment device includes a housing, a fragile catalyst support structure resiliently mounted within the housing, and the mounting mat disposed in a gap between the housing and the fragile catalyst support structure.

Abstract: An air filter housing (1) has at least one filter chamber (2, 3) with an inlet end and an outlet end for air passing through a filter unit (F) disposed in the filter chamber, an access opening (4, 5) arranged in a sidewall of the filter chamber for the introduction of an air filter unit into and removal thereof out of the filter chamber, and a clamping device (8) for pressing an air filter unit disposed in the filter chamber against an end wall of the filter chamber in the inlet end thereof. The housing has a guide (19, 20, 21-24) for guiding an air filter unit (F) during introduction into and removal out of the filter chamber (2).

Abstract: Disclosed is a device for separating liquids from gases comprising a preseparator that separates an untreated gas region from a preseparator gas region, a main separator comprising a coalescing element for increasing the size of liquid droplets and a post-separator.

Abstract: The invention is directed to a nonwoven layer for a filter, in particular, for a vacuum cleaner bag, wherein at least one region of the nonwoven layer, the region having a predetermined thickness and a predetermined area, has an average pore size smaller than 50 ?m and comprises fibers being bonded together such that a movement of the fibers relative to each other in a direction parallel to the surface of the layer is inhibited. The invention is further directed to a filter medium, in particular, for a vacuum cleaner bag, comprising a filter structure wherein a surface or an interface of the filter structure is provided with a filter paper layer having a smaller surface area than the filter structure.

Abstract: A substrate has corrugated sheet(s) and channel(s) for treating exhaust gases of combustion engines. The present invention also relates to methods for manufacturing and using the substrate having the open channel(s). The substrate (1) includes at least one corrugated sheet (3) having depressions (3d) and one flat wire mesh sheet (2) having depressions (2d) which is connected to the corrugated sheet (3) and between the flat wire mesh sheet (2) and the corrugated sheet (3) there are at least partially open channels (POC) for exhaust gas (EG) flow, and the depth of depression (2d) of the flat wire mesh sheet (2) is 0.05-2.0 mm smaller than the height of the corrugation (3c) of the corrugated sheet (3).

Abstract: A turbomolecular pump includes: a rotor (30) formed with rotating blades (32) in a plurality of stages, and rotating at high speed; a plurality of fixed blades (33) arranged along axial direction of the pump so as to alternate with respect to the rotating blades (32); a pump housing (34) containing the rotating blades (32) and the fixed blades (33), and formed with an inlet opening (21a); a circular disk (150), provided close to the inlet opening of the rotor (30), and arranged so as to oppose a surface of the rotor (30) radially inward than a root portion of the rotating blades; and a cylindrical mesh structure (153a, 153b), disposed between the inlet opening (21a) and the rotor (30), and made by interlacing fine wires. Particles that strike the rotor and bounce off are captured internally in the mesh structure (153a, 153b).

Abstract: Embodiments of the invention generally provide a frame assembly having an integral holding frame/clamp. The frame assembly is typically mounted in a housing of an air handler or other air moving conduit. The holding frame/clamp is coupled to the frame assembly by a hinge. The holding frame/lamp is configured to retain a prefilter. When the holding frame/clamp is to a closed position, the holding frame/clamp urges a final filter sealingly against the frame assembly. The clamp holding frame/clamp is maintained in the closed position by a latch. The latch facilitates removal and replacement of the final ter rapidly without tools, thereby substantially reducing the expense associated with filter change out.

Abstract: An improvement to a reusable filtering assembly used in circulating air systems for residential or commercial heating and air conditioning systems. A series of layers consisting of filtering materials disposed between two framing units are comprised of the following: expanded metal lath, a layer of small fiber material, a layer of large fiber material, a layer of small crimp wire cloth, a layer of small fiber material, and a last layer of expanded metal lath. The present invention further comprises a stage loaded series of layers wherein the direction of air flow is from the first layer to the sixth layer comprising: Expanded Metal Lath, Small Fiber, Large Fiber, Small Crimp Wire Cloth, Small Fiber, and Expanded Metal Lath.

Abstract: A carrier for exhaust-gas purification is able to effectively protect against getting clogged with the particulate matters in a filter having carriers. The carrier is constituted with a web corrugated to have straight and/or zigzag ridges and then wound up into a column. The carrier for exhaust-gas purification is made of the web of wire netting or nonwoven metallic fabric, which is embossed to have ridges and grooves extending at least in a widthwise direction and further wound up spirally or stacked on top of the other into the column.

Abstract: An apparatus and a method for filtering sectioning wastes of a microtome that are present in an air stream is suggested. The apparatus encompasses an aspiration device. With the aspiration device, sectioning waste can be aspirated from a blade region of the microtome with an air stream. The aspiration device comprises a main filter in which the sectioning wastes can be filtered from the air. In order to allow inadvertently aspirated histological sections to be retrieved again without mix-up, the apparatus according to the present invention has an aspiration device comprising a prefilter that is arranged between the blade region and the main filter and prefilters the sectioning wastes. The present invention further relates to a microtome.

Abstract: A filter for filtering a fluid has a filter housing and a filter element arranged in the filter housing. A cyclone preseparator is arranged upstream of the filter element, wherein a fluid to be cleaned is guided through the preseparator to the filter element. The cyclone preseparator has at least two cyclone cells that have a different diameter, respectively.

Abstract: A honeycomb structural body includes a columnar honeycomb structural body having large-capacity through holes and small-capacity through holes extending in parallel in a length direction of the columnar structural body. The large-capacity through holes and the small-capacity through holes have a polygonal shape in a cross section perpendicular to the length direction, and the large-capacity through holes and the small-capacity through holes have R-chamfered corner portions or C-chamfered corner portions in the cross section perpendicular to the length direction.

Abstract: A particulate collection system, including a particulate matter analyzer and collecting filter, provides a method of analyzing and collecting samples from fluids, such as collecting particulate matter from air. A mass measuring unit and composition analyzing unit can be provided for either simultaneous or immediately consecutive measurements within a single instrument. The filter material can have an antistatic electricity characteristic and can be impregnated with reference material to enable calibration of the composition analyzing unit.

Abstract: A system and an associated method for improving mercury removal from a flow containing combustion exhaust. The system includes a filtration arrangement that includes at least one layer of ePTFE, with the at least one ePTFE layer being configured to have a geometry that retains at least some accumulated particulate matter. The system includes an arrangement for providing at least some particulate matter in the flow for accumulation on the filtration arrangement by the geometry.

Abstract: A low-microcracked porous cordierite honeycomb ceramic particulate filter having a high strength in combination with a very low pressure drop, a very high filtration efficiency, and a high thermal shock resistance. Little or no microcracking, a fine median pore diameter, and a narrow pore size distribution contribute to high strength. A thin channel wall, high wall permeability, and narrow pore size distribution, contribute to low pressure drop. A fine pore diameter and narrow pore size distribution with a minimum of coarse pores contribute to high filtration efficiency. A high strain tolerance, MOR/E, contributes to high thermal shock resistance. Particulate filters disclosed herein can be useful as a hot gas particulate filter, and particularly as an internal combustion engine exhaust gas particulate filter, such as an exhaust gas filter for a gasoline direct injection engine.

Abstract: A filter element (100) according to the invention comprises a filter volume (150) having an inflow side and an outflow side defining an average flow direction. The filter volume (150) has an axis substantially parallel to the average flow direction and further comprising a casing (140) delimiting the outer boundary of the filter volume in the direction of the average flow path. The casing (140) is gas impermeable in radial direction. The filter volume (150) is filled with a filter material (111) comprising fibers, a majority of the fibers (102) at least partially encircle the axis.

Abstract: A cutoff saw and filtration system provides convenient multi-stage filtration for a cutoff saw. The filters are effective in capturing the dust and debris created by the saw without becoming clogged. The filters may be easily cleaned and serviced.

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 comprises 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 filter element is includes a cylindrical media pack defining a central open volume and a longitudinal axis; a first end cap having a central aperture in flow communication with the central open volume; and a second, closed end cap having a central region closing an end of the media pack central, open volume. The closed end cap includes a projection extending axially outwardly therefrom and positioned at a location intersected by the longitudinal axis. An end cover for an air cleaner includes an inner side including a central projection thereon. Preferably, the central projection comprises a wall that includes an outer perimeter defining a regular polyhedron having at least five sides. An air cleaner comprises a cylindrical filter element having a first open end cap, a second closed end cap, and a cylindrical media pack extending therebetween. The first end cap defines an internal radial seal region. The second, closed end cap has a central region including a circular recessed portion.

Abstract: Provided is an exhaust gas purifying device structured such that a gas sensor or the like can be easily arranged while an installation length of gas purifying filters can be formed compact. The exhaust gas purifying device includes the gas purifying filters for purifying an exhaust gas discharged from an engine, inner cases internally provided with the gas purifying filters, and outer cases internally provided with the inner cases. Provided are sets of the gas purifying filters, the inner cases and the outer cases, and flange bodies connecting plural sets of outer cases are offset with respect to a connection boundary position of plural sets of gas purifying filters.

Abstract: Various high performance, high efficiency filter media are provided that are cost effective and easy to manufacture. In particular, various filter media are provided having at least one layer with a waved configuration that results in an increased surface area, thereby enhancing various properties of the filter media. The filter media can be used to form a variety of filter elements for use in various applications.