Abstract: An enbloc device for filtering the intake air of internal combustion engines includes a filtering element (2) corrugated and peripherally fixed to a support mean (9).

Abstract: A parallel folded filter has good sealing properties between the folded filter web and the filter housing with the smallest possible amount of sealant. The filter is prepared with an elliptical filter blank, in which the rows (1) of fold lines (locations of predefined fold edges or imaginary fold edges) are at right angles to an axis (4) extending in the direction of the greatest longitudinal extension of the filter blank (2). The circumferential contour of the filter blank (2) is dimensioned such that it assumes a circular shape with the folds stood up (e.g., in a folded state). An adhesive bead (3) is applied along the circumferential contour. A ring-shaped filter housing accommodates the folded filter blank (2) such that a circumferential support surface is present for the adhesive bead (3).

Abstract: The present invention provides an air-conditioning air filter capable of cleaning and replacing only a filter element thereof for resources saving, refuse reduction, and cost reduction, and also preventing air leakage due to expanded deformation of a main box.

Abstract: An improved air cleaner assembly for large displacement stationary engines provides for an included environmentally friendly disposable filter element containing substantially no chlorine compounds or structural metal supports which upon incineration or landfilling become undesireable chemical compounds. Improved sealing results by creating novel gasket compression control both radially and by a face seal by use of permanent metal components which are not discarded as before. Excessive compression of the gasket material is prevented by structure integral to the air cleaner assembly, and support of the filter element is external within the air cleaner assembly rather than internal within the filter element, thus eliminating the manufacturing cost of metal components previously discarded as integral to the filter element upon replacement of the disposable filter element.

Abstract: A minipleat synthetic filter assembly is provided. The filter assembly includes a frame assembly and a section of pleated filter media mounted within the frame assembly. The frame assembly includes a plurality of corner members and an equal plurality of side members interconnecting the corner members. The frame assembly may be made in any desired size and shape to accommodate a wide variety of applications. The section of filter media is a sheet of a synthetic nonwoven material folded to form minipleats having a spacing between adjacent peaks of no greater than 20 mm.

Abstract: A filter production method produces a filter having a shape substantially identical to the shape of a forming surface by extruding semi-molten fibers to the forming surface. When the semi-molten fibers are extruded to the forming surface, the semi-molten fibers are gathered to upstanding surface portions of the forming surface. Therefore, a sufficient amount of fibers can be layered onto the upstanding surface portions, so that the layering amount of fibers on the upstanding surface portions of the forming surface will not be considerably reduced in comparison with the layering amounts on other portions of the forming surface.

Abstract: A filter cartridge is made of an accordion fold pack folded in a zigzag-shape. At the end faces (4) of the accordion fold pack, running parallel to the folds, provision is made for the closing elements (5) which include stiffening strips (6), partially covering the accordion fold pack (2), at least on its discharge side, and sealing elements (7) integrally connected to the stiffening strips (6).

Abstract: A filter and a method of manufacturing the filter which is formed by spinning a fiber in a semi-molten state onto a mold such that the mold is provided as a filter structural member. The method obviates the need to remove the filter from the mold and thus simplifies the manufacture of the filter.

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

Abstract: A filtration system has a main filter assembly having a frame and filter media comprising pleated sections arranged in a row in V shapes within the frame. The filter media is spaced from an upstream face of the frame a distance sufficient to prevent blinding of the filter media by an upstream filter media, thereby eliminating a filtration stage and reducing the volume of the filtration system. Filter media alignment members disposed within the frame assist in holding the filter media sections in alignment within the frame. In another embodiment, flexible strips of edge banding, preferably of a filter material, are affixed to adjacent upper and lower longitudinal edges of the sections of the filter media. The edge banding minimizes pressure drop across the filter and is simpler and less costly to manufacture.

Abstract: A filter for a vehicle air conditioning apparatus is composed of only a filter medium, and is disposed in a case. A first support member supports a peripheral portion of the filter and a second support member supports a central portion of the filter in the case to prevent deformation of the filter. The filter composed of only the filter medium can be bent, and be detached from the case in a narrow space. It is not necessary to detach opposing parts such as a glove compartment to detach the filter.

Abstract: An air induction system comprises a flow body and a filter housing. A pleated filter support (10) is connected to the housing (FIG. 1). A filter (14) is supported by the pleated filter support (10), thereby supporting pleats on the filter (FIG. 1). The pleated filter support may comprise support members (22) that define a pleated shape (FIG. 1).

Abstract: An air filter screen has a corrugated composite screen securely enclosed in a sectional frame. The sectional frame has two first beams respectively attached on first and third side-edges of the composite screen, two second beams respectively attached on second and fourth side-edges of the composite screen, and four right-angle connectors respectively combine the first beams together with the second beams, whereby the composite screen is enclosed in the combined sectional frame. When the composite screen needs to be replaced, the sectional frame is able to be separated, the old composite screen is detached from the opened sectional frame, and then after fitting a new composite screen with the sectional frame, the sectional frame is combined together again, so as to reduce cost of the air filter screen and help environmental protection.

Abstract: A filter cartridge made of an accordion fold pack folded in a zigzag-shaped manner and made of a thermoplastically moldable and heat-sealable material, whose folds are held at an adjusted, defined distance relative to each other, in particular made of a nonwoven fabric. The longitudinal direction of the accordion fold pack, transversely to the folds, the individual fold peaks are folded over in the same direction in at least one strip on one or both sides of the accordion fold pack and in each case fixedly joined to the next following, likewise turned-down fold at least in the overlapping region, by heat-sealing.

Abstract: A minipleat synthetic filter assembly is provided. The filter assembly includes a frame assembly and a section of pleated filter media mounted within the frame assembly. The frame assembly includes a plurality of corner members and an equal plurality of side members interconnecting the corner members. The frame assembly may be made in any desired size and shape to accommodate a wide variety of applications. The section of filter media is a sheet of a synthetic nonwoven material folded to form minipleats having a spacing between adjacent peaks of no greater than 20 mm.

Abstract: A filter element of an air filter includes a main body and a substrate. The far infrared emission powder substances are embedded at certain grain sized and at certain ratio to the substrate, thereby forming the main body that is adapted in form to various internal combustion engines. The resonance effect will be created by means of the far infrared emission substances in the filter element of the air filter, thereby making tiny the molecular cluster of water in the moisture-containing air entering into the internal combustion engine for combustion, increasing the molecular freedom, enlarging the contact surface of the oil gas with the air. Therefore, it's easier that the oxygen-containing particles and the oil gas are evenly mixed for reaching an optimal mixture ratio of the original design standard.

Abstract: A filter unit comprising a filter part made of an adsorbent-bearing filtration material and characterized in that said filter part is integrally molded with a filter holding frame made of a thermoplastic resin and that the adsorbent of the filter part is packed to the position contacting the filter holding frame.

Abstract: A gas turbine suction air filter is provided wherein, despite a large capacity, dust is easily removed by an ultrasonic washer. A gas turbine suction air filter (1) comprises a box-like frame member (3) and a filter cloth (5) contained in the frame member (3). The frame member (3) is made of a metal material, preferably a stainless steel. The filter cloth (5) is formed having many pleats so that many folded faces (7) are formed. Between adjacent folded faces (7, 7), no intervening member is provided with only a space being arranged there. The filter cloth (5) is a non-woven fabric of a synthetic resin fiber, preferably a polypropylene fiber. While this filter (1) has a large capacity, the ultrasonic wave reaches to the entire filter cloth (5) when the filter (1) is washed by an ultrasonic washer.

Abstract: A pleatable high efficiency non-woven, gas filtration media is provided. The media has an electrically charged air laid fibrous layer with a thickness between about 2 and about 35 mils, and a wet laid fibrous layer having a thickness of between about 5 and about 35 mils. The combined layers have, (a) a thickness of between about 10 and about 50 mils, (b) a stiffness of between about 200 and about 3500 mgs, (c) a Fraizer of between about 10 and about 400 CFM, and (d) an &agr; of at least 15.

Abstract: A filter with a planar filter insert which includes a device for the deflection of the fluid entering for filtration. Filters of this kind are particularly useful as air filters for the intake air of an internal combustion engine. The device for deflection onto the filter insert 12 is preferably realized by the cross-sectional profile of the inlet chamber 21a. As the hatched plane 26 in FIG. 2 shows, the profile has a curved portion a which leads to a deflection of the flow from an inlet 23 toward the filter insert. In comparison with wedge-shaped inlet chambers, a low pressure region on the filter element near the inlet, which would lead to an unequal distribution of filtrate on the filter element, can be prevented. In this way an optimum useful life of the filter element can be achieved, which is beneficial to the economics of the filtering operation.

Abstract: A framed filter media comprising a filter media having a fluid inlet face and a fluid outlet face with peripheral sidewalls. The peripheral sidewalls are attached to a strip frame by an adhesive-potting compound. The continuous strip frame is formed into three or more (up to an infinite number if the sidewall sections(s) is formed into a circular filter frame) sidewall sections having a substantially flat sidewall and at least two projecting filter retaining tabs which form a channel on a first face of the sidewall section for containing the adhesive potting compound. The sidewall sections are separated by corner notches extending through the retaining tabs at least to the substantially flat sidewalls. Two terminal sidewall sections meet to form a seam such that the sidewall sections circumscribe the filter media peripheral sidewalls.

Abstract: An air induction system comprises flow body (32) and a filter housing (20). The filter housing (20) has a first housing portion (36) and a second housing portion (40) in communication with the air flow body (32). A filter (44) is disposed in the filter housing (20). A connector comprises a wing (54) mounted to a post (70) extending from the first housing portion (36) and a slot (56) on the second housing portion (40). (FIG. 4). The first housing portion (36) has at least one cutout (60) adjacent post (72). (FIG. 4).

Abstract: An air filtering enclosure for a vehicle to minimize the amount of debris entering the radiator of the vehicle is provided. The enclosure consists of a shell having a set of interfitting interior and exterior members. Mounted with the interior member are clips designed to mate with a series of compatibly arranged brackets on the vehicle frame. Attached opposite the clips are handles which a user may grasp to easily install and remove the shell from a vehicle. Interior and exterior members form a frame which encases sheets of perforated screening to restrict the introduction of debris into the radiator. The shell is completed with a rubber seal enabling tight sealing of the enclosure to the vehicle on which it is attached.

Abstract: A catheter mount incorporates a filter pleated along its length in zig-zag fashion. Opposite edges of the filter are sealed between identical upper and lower parts of a housing between teeth extending along opposite sides.

Abstract: The invention relates to the combination of an air filter and a membrane carburetor (1). The membrane carburetor (1) has an intake channel section (3) configured in the carburetor housing (2) into which the fuel-conducting channels (4, 4′) open which are fed from a control chamber (5) of the carburetor housing (2). The control chamber (5) is separated by a control membrane (6) from the compensation chamber (7). A compensation channel (11) leads from the compensation chamber (7) into a flow space (9). A connecting piece (8) is led into the flow space (9) as a connection of the intake channel section (3) of the membrane carburetor (1) with the flow space (9). The compensation channel (11) and the connecting piece (8) open into the housing (21) on the clean air side (23). The housing (21) forms the flow space (9).

Abstract: An engine exhaust filter system comprises a housing and a pleated filter element. The housing includes an inlet and an outlet and defines an exhaust flow path between the inlet and the outlet. The pleated filter element is disposed in the exhaust gas flow path between the inlet and the outlet. The pleated filter element includes a filter medium and at least a first perforated support member, the filter medium being disposed adjacent to the perforated filter support member. The filter medium includes a portion extending beyond the perforated support member comprising a seal that prevents or reduces bypass of unfiltered exhaust gas around the pleated filter element.

Abstract: The invention relates to a plate filter element for an air filter comprising a zigzag-shaped, folded strip material made of an activated carbon nonwoven material. The aim of the invention is to improve the dimensional stability of the activated carbon nonwoven material, especially in the area of an end fold. To this end, the invention provides that an end fold of the strip material comprises a sealing which is formed by gluing or fusing an upper side with an underside of the activated carbon nonwoven material.

Abstract: An air filter assembly typically for use with truck-trailer cobinations, has separable body and bottom sections, and an elongted threaded member rotatable for threaded securement between the body and bottom sections and for disengagement of the bottom section from the body section for the removal and replacement of a element via the lower portion of the body section.

Abstract: The injection mold for insert-molding a synthetic material around the edge of a filter material comprising at least one particle filter layer and at least one active carbon layer of active carbon particles, is provided with a first mold half and a second mold half which comprise mutually confronting mold walls. In their assembled state, the two mold halves define a receiving space for the filter material, a molding space for accommodating the edge of the filter material and for forming the synthetic material to be arranged by insert molding around the edge of the filter material, with at least one injection channel entering the molding space, and a transition space arranged between the receiving space and the molding space for accommodating the edge portion of the filter material adjacent the edge of the filter material. The transition space is formed with a constricted portion for preventing the leakage of synthetic material from the molding space into the receiving space.

Abstract: The present disclosure relates to systems and methods that use a hydrophobic medium to remove salt and moisture from the intake air of a gas turbine system. The disclosure also relates to systems and methods that use a two stage filtering process to remove particulate material, salt and moisture from the intake air of a gas turbine system. Particulate material is filtered from the intake air at a first stage air cleaner. Subsequently, salt and moisture are removed from the intake air at a second stage salt barrier located downstream from the first stage air cleaner. In certain embodiments, the second stage salt barrier uses a hydrophobic medium to remove salt and moisture from the intake air.

Abstract: A cassette filter made of a case open at either end that is formed of flat sheets which surround a dimensionally stable filter pack in a dust-tight manner. The sheets are cemented to each other and to the filter pack by means of adhesive layers and are spatially fixed in position by the filter pack.

Abstract: A filter including a housing with a bottom shell (11) and a cover (13) for receiving a filter element (10). The filter element has a seal (17) that is made of non-woven material and is also used as a filtering medium. The filter element is clamped in a slot (16) between clamping ribs (20) and clamping grooves (21). Manufacturing tolerances of the housing parts can thus be compensated over a wide range. This leads to improved economic efficiency in the manufacturing process, especially as regards the production of synthetic resin housings. In addition, the assembly and retaining forces acting between the parts of the housing can be reduced, thereby simplifying the assembly process.

Abstract: A filter arrangement includes a first filter element having opposite first and second ends; an axial length between the first and second ends; and a plurality of flutes. Each of the flutes has a first end portion adjacent to the first filter element first end, and a second end portion adjacent to the first filter element second end. Selected ones of the flutes are open at the first end portion and closed at the second end portion; and selected ones of the flutes are closed at the first end portion and open at the second end portion. A sleeve member secured to and circumscribing the first filter element. The sleeve member is oriented relative the first filter element to extend at least 30% of the axial length of the first filter element. A seal member pressure flange at least partially circumscribes the sleeve member. The filter arrangement is particularly useful for gas turbine systems. Methods for operating and servicing filter arrangements preferably utilize constructions herein.

Abstract: A panel-type filter employs a rectangular filter element having shifted pleats wherein the peaks of the pleats on the upstream and downstream sides of the filter medium alternate between high and low peaks. By so configuring the filter medium, turbulence is decreased at the upstream side of the filter which reduces restriction. The reduced restriction increases air flow to the engine which results in reduced fuel consumption and higher engine output power. Moreover, compression and turbulence is reduced at the downstream side of the filter resulting in flow past sensors to the engine which is more laminar, thus increasing the effectiveness of the sensors.

Abstract: A filter medium with excellent flame-resistant properties and an air filter unit using the same are provided which have a flame-resistant air permeable supporting material on at least one surface of a polytetrafluoroethylene (PTFE) porous film and which can be used as a ceiling device, etc.

Abstract: The invention provides a filter apparatus for removing air entrained particles comprising a collapsible filter media. The filter media has a periphery. A continuous frame extends around and attaches to the periphery of the filter media whereby the filter media and attached frame together can be lengthwise collapsed.

Abstract: A filter assembly of an air filter, which includes a corrugated filter sheet, and both ends thereof are mounted in a clamp space between two rows of corrugated positioning grooves of the upper and lower clamp plates of a horizontal lintel; both sides thereof are clamped in two vertical jambs respectively; the corner ends of the horizontal lintel and the vertical jamb are connected together by using a connection plate to plug therein; then, the outer surface of the filter assembly and the corner ends will be pressed and punched to have the horizontal lintels, the vertical jambs, and the filter sheet fastened together to form into a filter for screening dust.

Abstract: A self supporting pleated fluid filter medium having different fibers to provide pleats sufficiently self supporting to maintain pleated form during fluid filter treatment, the invention fixer including low melt fiber and an optional support frame and a method of making such pleated filter.

Abstract: A filter unit comprising a filter part made of an adsorbent-bearing filtration material and characterized in that said filter part is integrally molded with a filter holding frame made of a thermoplastic resin and that said adsorbent of said filter part is packed to the position contacting the filter holding frame.

Abstract: A housing, in particular a pot-shaped filter housing. To connect housing pot 10 and cover 11, a joint consisting of closure elements such as locking clamps or bow clamps 16 is proposed which can be attached at the periphery of the housing via receivers 18. As there are more receivers 18 provided on the housing than locking clamps 16 which are required for absorbing retention forces, it is possible to vary the exact fitting position of the locking clamps according to the respective space available for receiving and mounting the housing. This is essential, because the rotating radius 27 of the tension levers 17 of the locking clamps has to be considered when mounting the locking clamps 16. It is thus possible to provide housings for any field of use with variable receivers for the closure elements.

Abstract: A filter element that is able to be sealingly secured in position in a filter housing, comprising an accordion fold pack. The oncoming-flow side of accordion fold pack is covered by a latticed protective mask. The protective mask is sealingly joined to all fold backs of accordion fold pack on the clean-air side. In this manner, the fold edges are protected from damage during the periodic cleaning in the face of the back-blasted air used for that purpose.

Abstract: An air filter is substantially made up of a filter element having a pleated filtering portion and a collar portion that extends on an outer periphery of the filtering portion and that has a sealing function, the filtering portion and the collar portion being integrally formed from the same material, and a cap and a case each of which has a flange for clamping the collar portion of the filter element. One of the flange of the cap and the flange of the case has a protruded portion that has an inclined portion. The collar portion of the filter element has a recess portion that contacts the inclined portion of the protruded portion and is guided by the inclined portion and fits to the protruded portion at a predetermined position so as to become set in position.

Abstract: The invention is directed to an arrangement of an air filter (1) and a membrane carburetor (2). The membrane carburetor (2) has an intake channel section (3) configured in the carburetor housing (4) and fuel-conducting channels (6) open into the intake channel section (3). The channels (6) are supplied from a fuel-filled control chamber (7) which is configured in the carburetor housing (4). The control chamber (7) is partitioned from a compensation chamber (11) via a control membrane (10). The compensation chamber (11) communicates with the housing (14, 16) of the air filter (1) via a compensation channel (13) downstream of an air filter element (39). The air filter housing (14) engages over the membrane carburetor (2) essentially on the side of the compensation chamber (11) and the clean chamber (24) of the air filter housing (14) communicates with the intake channel section via a connecting stub (37) which lies approximately at right angles to the intake channel section (3).

Abstract: A filter cartridge is made of an accordion fold pack folded in a zigzag-shape. At the end faces (4) of the accordion fold pack, running parallel to the folds, provision is made for the closing elements (5) which include stiffening strips (6), partially covering the accordion fold pack (2), at least on its discharge side, and sealing elements (7) integrally connected to the stiffening strips (6).

Abstract: A filter unit for airtight attachment to a framework of a cleanroom ceiling includes a filter, a circumferential wall surrounding the filter, and a downwardly projecting sealing knife to be received in a sealant containing groove formed in said framework. The sealing knife includes vertical weldable wall elements interconnected by welding and mounted on the circumferential wall by airtight mounting means.

Abstract: Channel flow filtration media possessing high efficiency and low pressure drop is formed from a plurality of filtration layers at least some of which include a multi-dimensional channel pattern having a plurality of continuous, tortuous channels and a multi-dimensional edge at each end of the plurality of channels formed therein. The filtration medium is configured as a stack with the multi-dimensional edge of the channel pattern forming a plurality of inlets open through a first face of the stack, a plurality of outlets open through a second face of the stack, and a corresponding plurality of disruptive fluid pathways passing from the inlets through the stack to the outlets. The filtration layers may be formed from a non-woven material, such as a carbon loaded multi-layer BMF web capable of adsorption of undesired vapors and odors from a fluid.

Abstract: A self supporting pleated fluid filter medium having different fibers to provide pleats sufficiently self supporting to maintain pleated form during fluid filter treatment, the invention further including low melt fiber and an optional support frame and a method of making such pleated filter.

Abstract: A filter device has a frame, a grid, a filter medium and, if desired, a gas adsorption medium. The frame is flexible so as to be temporarily deformable and is made of polypropylene, as is the grid. The filter medium is a mat of non-woven material and the gas adsorption medium is activated carbon.

Abstract: A microbiocidal air filter assembly, for filtering air, having a) a housing component defining an air path b) an air filter component b) an air inlet, and d) an air outlet, wherein the air filter component comprises a first air filter element and a second filter element, wherein the air filter component is disposed so as to intersect the air path for air flow communication between the air inlet and the air outlet through each of the air filter elements, wherein one of the air filter elements is a microbiocidal air filter element and comprises a demand disinfectant resin, the demand disinfectant resin being an iodinated strong base anion exchange resin.

Abstract: A combined filter, for removing solid particles and noxious gases from air to be delivered into the cabin of a vehicle, as part of a ventilating, heating and/or air conditioning system, comprises two layers of a non-woven tissue such as polypropylene, between which are deposited activated carbon granules. The two layers of non-woven tissue are interleaved at least partially, so as to trap the granules between them.