Abstract: A fluid filter with a housing, a releasable cover, and a replaceable filter having a filter body and two end discs. The filter is plugged onto a housing pipe and a locking ring is guided on the pipe, preloaded in a push-out direction. The locking ring is locked in a pushed-out position by a locking device. An unlocking device guided by the filter unlocks the locking device when the filter is pushed onto the pipe and enables the locking ring and the filter to be pushed in. When the filter is fitted into the housing, a seal on the end disc or locking ring interacts with a housing sealing surface to separate an untreated filter side from a clean side. When the locking ring is in the pushed-out position and the filter bears against the locking ring, the seal is held away from the sealing surface of the housing.

Abstract: Air cleaner and preferred components for an air cleaner are provided. In certain arrangements, a band is permanently mounted to the media pack, surrounding the media. Also, the cartridge is non-circular and includes a radial seal thereon.

Abstract: An air filter arrangement is disclosed. The air filter arrangement includes media comprising corrugated media secured to facing media and forming inlet and outlet flutes secured to one another. Media pack arrangements including such media are described. Also described are filter cartridges including such media packs and air cleaners including the filter cartridges. Advantageous housing seal arrangements having a pinch seal member and forming a trough are described. Methods of assembly and use are also provided. Also, systems of use are described.

Abstract: Certain embodiments of the invention may include filters, systems, and methods for reducing can velocity. According to an example embodiment, a filter is provided for filtering particles from air or fluid. The filter includes a first end and a second end, wherein the first end includes an aperture; one or more sections of pleated filter media including a plurality of pleats formed in a substantially conical shape about an axis and around an inner void region in communication with the aperture, wherein a diameter associated with the first end aperture is greater than a diameter associated with the second end; and one or more radial support regions in circumferential contact with at least one of an outer surface of the filter media, wherein spacing of at least some of the plurality of pleats are maintained at least in part by the one or more radial support regions.

Abstract: A filter element of a fresh air system of an internal combustion engine may include an annular filter body having a folded filter material and at least one end disc fastened to an axial end face of the filter body on the filter material. The filter material may have two end folds adjacent in the circumferential direction and be fastened to each other. The at least one end disc may have at least one alignment contour protruding at least one of radially and axially from a respective one of the at least one end disc.

Abstract: A separating element for separating liquid from a gas flow is arranged in a separating container of a liquid separator. The separating container has a housing with a container opening and a cover closing off the container opening. The sealing element has a collar arranged between housing and cover and supported on an upper area of the housing facing the cover. A sealing element is provided that has sealing surfaces arranged between the upper area of the housing and the cover such that the separating container is sealed relative to ambient pressure. The sealing element has a holding element monolithically formed with the sealing element and captively securing the sealing element on the collar. The sealing surfaces and the holding element are designed such that a function of sealing the separating container and a function of holding the sealing element on the collar are separate from each other.

Abstract: A filter element has a filter body of at least one layer of a flat web-shaped filter medium, separating a raw side from a clean side of the filter element. A hot melt system is provided and the filter body is glued together by the hot melt system. The hot melt system has a hot melt mixture that is made up of 15-85% by weight of a first hot melt that is polyester-based and 15-85% by weight of a second hot melt that is polyamide-based. The first hot melt and the second hot melt together amount to 100% by weight of the hot melt mixture. The hot melt mixture constitutes a proportion of more than 75% by weight of the hot melt system. The remainder of the hot melt system is made up of fillers, pigments, tackiness-imparting resins, and hot melts based on a polycondensate.

Abstract: A unique, multi-cartridge, easily re-configurable ambient air filter assembly (air contaminant control system) that removes particulate and gaseous chemical/biological contaminants from the incoming cathode air stream on a fuel cell or similar devices is described. The filter assembly is composed of individual filter cartridges (sub-assemblies) of various filtration media that are targeted at removing specific airborne contaminants. Combining specific sets of cartridges enables the filter assembly to be readily/rapidly configured (and re-configured) for specific applications—such as urban, rural, industrial, or military battlefield environments. Selection of correct media ensures complete removal of potential contaminants, enables rapid re-configuration to different environments, quick replacement of spent cartridges without disposal of non-spent media (reducing waste and cost).

Abstract: An air cleaner assembly, a main filter element, a safety element, combinations and methods for servicing an air cleaner assembly are provided according to the present invention. The air cleaner assembly includes an air cleaner housing and a main filter element. The air cleaner housing includes a safety liner that supports the main filter element, and can be configured to help reduce the tendency of the main filter element to rotate during use of the air cleaner assembly. A safety element having two open ends, for use with such an assembly is described.

Abstract: Disclosed is an air filter element (200) for insertion into an air filter housing, comprising an intake surface (275), a discharge surface (285), a filter medium (210), and a filter element-retaining device (240) which extends along at least a section of the periphery of the filter medium (210), between the intake surface (275) and the discharge surface (285), and which includes a retaining arrangement (270) that radially projects from the filter medium (210).

Abstract: Disclosed is an air filter element (200) for insertion into an air filter housing, comprising an intake surface (275), a discharge surface (285), a filter medium (210), and a filter element-retaining device (240) which extends along at least a section of the periphery of the filter medium (210), between the intake surface (275) and the discharge surface (285), and which includes a retaining arrangement (270) that radially projects from the filter medium (210).

Abstract: A filter element, and filter apparatus, include a filter pack, a seal member, and a seal support frame operatively connecting the seal member to the filter pack. The seal support frame includes an annular extension, which is preferably canted at an oblique angle to a longitudinal axis, for supporting the seal member. The seal support frame also preferably includes a first end thereof including the annular extension, and a second end thereof spaced from the first end thereof along the longitudinal axis, with the first and second ends of the seal support frame joined by a hub of the outer peripheral sidewall of the seal support frame to define a cavity within the seal support frame for receiving the filter pack. The first and second ends of the seal support frame, and the filter pack are preferably joined and sealed to one another by a single bead of adhesive.

Abstract: Air cleaner assemblies, components therefor, and features thereof are described. Also described are methods of assembly and use. In depicted examples, the air cleaner assemblies and components optionally use advantageous housing seal features. Also, an advantageous resonator/sonic choke arrangement, which is optional and which can be used without the advantageous housing seal, is described. Methods of assembly and use are described.

Abstract: An air filter element (10) with a cylindrical central pipe (11) is provided wherein at one end of the central tube (11) a device (18) for transmission of torque from a tool to the air filter element (10) is provided and at the other end of the central tube (11) a fastening device (14) for detachably mounting the filter element (10) in a cylindrical support body (21) by means of an insertion/rotation movement is provided.

Abstract: A filter element includes a holding frame with an intake opening, an air intake disposed on the intake opening, and an anti-twist mechanism configured such that the filter element is only insertable into a filter housing in one position. The anti-twist mechanism includes a body with two asymmetrically configured recesses extending along a longitudinal axis of the holding frame. The filter element also includes two bellows disposed on the holding frame, the bellows and holding frame delimiting a cavity.

Abstract: A filter arrangement for filtering the supply air of an engine, comprising a filter element with a folded filter medium, whereby the folded filter medium comprises longitudinal folds with fold walls and fold troughs, and a filter housing for receiving the filter element, whereby the filter housing comprises an upper part and a bottom part. A first insertion tongue is arranged on the upper part and a second insertion tongue is arranged on the bottom part, whereby at least one insertion tongue engages in a fold trough and whereby the insertion tongues press a fold wall between themselves is characterized in that, in regard to the problem of improving the sealing concept of the prior art and of preventing the passage of dust from the raw air side to the clean air side with a high degree of reliability, the filter element comprises side strips manufactured from a compressible material that can be compressed to at least 80% of its thickness in the unloaded state.

Abstract: An air cleaner includes a case in which an inner cylindrical filter and an outer cylindrical filter are housed, the case having a case body that defines an opening end surface closed by a cover member. The case includes an air inlet provided to an outer circumference of the case body for supplying outside air and an exhaust outlet provided to a bottom of the case body at a downstream side in an air-flowing direction for discharging the air supplied through the air inlet and filtered through the inner cylindrical filter and the outer cylindrical filter. A mass flow rate sensor is provided in the exhaust outlet to measure the flow rate of the air. A flow straightening grid is provided at the upstream side of the mass flow rate sensor to straighten the flow of the air.

Abstract: An air filter media construction or arrangement is disclosed. The air filter media construction or arrangement includes strips of media comprising corrugated sheets secured to facing sheets and forming inlet and outlet flutes secured to one. A preferred projection/receiver arrangement is described. Methods of assembly and use are also provided.

Abstract: A coalescing filter assembly including a coalescing filter element is provided. The coalescing filter assembly includes a base housing and a cover housing that together form a coalescing chamber. Disposed within the coalescing chamber is the coalescing filter element. The coalescing filter element includes a frame with a partition that separates an unfiltered side from a filtered side of the coalescing filter assembly. A port connects the unfiltered side to the filtered side through the partition. A coalescing tube including coalescing filter media is connected to the port. Unfiltered fluid that enters the coalescing filter assembly is passed through the coalescing filter media such that the contaminants are removed to create a filtered fluid. The filtered fluid exits the coalescing filter assembly at an outlet of the coalescing filter assembly.

Abstract: A fluted filter cartridge is provided. The fluted filter cartridge includes filter media including an inlet flow face and an outlet flow face. The inlet flow face and the outlet flow face are generally parallel. The filter cartridge includes a frame defining a central opening. The filter media is coupled to the frame such that fluid to be filtered may be directed through the central opening to the inlet flow face of the filter media. The frame includes a top surface. The inlet flow face of the filter media is located below the top surface of the frame.

Abstract: An air filter including two opposing open ends, and a filter area circumferentially enclosing a cavity in between. The first open end frictionally and sealingly engages the filter housing including an air port, while the second end engages the housing to close the second end from passage of air. The filter area may be reinforced to provide a durable, reusable filter. The filter material may be selected to provide depth loading and increase the particulate capacity of the filter.

Abstract: A plate filter element for a filter device may include a filter body having a peripheral edge, which has at least two rectilinear wall sections, which border each other and forming a corner. A seal may be attached to the filter body and be arranged peripherally along the edge. The seal may have an inner contour running around the inside and an outer contour running around the outside. The inner contour may run parallel to the rectilinear edge sections into the respective corner. The outer contour may run parallel to the rectilinear edge sections to a corner region, which contains the respective corner and end sections of the rectilinear edge sections border the respective corner regions. The outer contour may form a bulge, which curves outwards in relation to rectilinear sections of the outer contour, in the corner region.

Abstract: A method for air filtration having a plurality of interlocking filters for use in an HVAC system or in other air filtration systems. Each interlocking filter can have a pleated filter media, a first frame, a second frame for supporting the first frame, an adhesive to connecting the pleated filter media to the first frame and the first frame to the second frame, and a one piece non-rigid flexible integral locking mechanism for connecting together the interlocking filters without clips or glue in a quick connect and quick disconnect manner.

Abstract: A system for air filtration having a plurality of interlocking filters for use in an HVAC system or other air filtration systems. Each interlocking filter can have a pleated filter media, a first frame, a second frame for supporting the first frame, an adhesive to connecting the pleated filter media to the first frame and the first frame to the second frame, and a one piece non-rigid flexible integral locking mechanism for connecting together the interlocking filters without clips or glue in a quick connect and quick disconnect manner.

Abstract: Disclosed are filter assembly systems that utilize replaceable filter elements. The filter elements may include a ramp or sleeve for redirecting air intake when the filter elements are installed in the filter assembly systems and air is drawn into the systems. The filter elements and assembly systems may utilize co-acting components that mate with each other to at least one of: a) orient and permit mounting of the filter element in the systems; and b) permit mounting of only an authorized filter element in the systems.

Abstract: Crankcase ventilation filter assemblies, features, components, and methods of assembly and use provide for convenient assembly; efficient space usage; and/or preferred operation.

Abstract: A filter retention system for releasably retaining a filter cartridge in an operable position within air supply and air exhaust systems is comprised of a filter cartridge, filter retainers, mounting frame with integral sealing knife edge and filter alignment brackets. The filter retainers allow for installation and removal of the filter cartridge without the use of tools. The retention system automatically aligns filter cartridges such that an airtight seal is created between the sealant containing groove in the filter cartridge and the sealing knife edge of the retention system.

Abstract: A filter cartridge for use in separating a hydrophobic liquid aerosol phase from a gas stream, as a crankcase ventilation filter for example, is described. The cartridge includes a media pack comprising filtration media surrounding an open interior and a first end piece. Various structure included on the first end piece is described. An example is a D-shaped projection. Also described is an assembly including the filter cartridge, specific features of a housing component of the assembly. Methods of assembly and use are also described.

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

Abstract: An air filter and dust collector are provided. In one embodiment, the air filter includes a filter element coupled at a first end to a end cap and at a second end to a first side of a rectangular filter flange assembly. The rectangular filter flange assembly includes a central aperture open to an interior region bounded by the filter element. A rectangular gasket is disposed on the second side of the filter flange assembly and circumscribes the central aperture.

Abstract: An air cleaner assembly is described and shown which includes a housing having an air flow inlet, an air flow outlet and a housing body and access cover. A serviceable filter cartridge is positioned within the housing. A projection/receiver arrangement providing for engagement between the cartridge and the access cover is provided. The projection/receiver arrangement can be configured in a manner that inhibits both cantilevered motion and rotational motion of the cartridge, once installed. An example projection/receiver arrangement is provided, which includes a serpentine receiving groove on the access cover and a serpentine projection on the filter cartridge.

Abstract: A housing (10) is provided with an opening (11) having a tapered surface (12). A vent member (2) to be attached to the opening (11) includes a support body (3) having a vent passage (30), a waterproof gas-permeable membrane (4), and a cover (5). The support body (3) has a base portion (31) to which the waterproof gas-permeable membrane (4) is bonded, and a stem portion (32) extending from the base portion (31) so as to be engaged with an inside surface of the housing (10). The stem portion (32) is fitted with a seal member (6), and this seal member (6) is pressed against the tapered surface (12) in the opening (11) by a pressing portion (34).

Abstract: A sealing device (24) of a filter system (10) for filtering fluids, in particular of a motor vehicle, with a sealing ring (26) is described. The sealing ring (26) serves to seal a pipe (16), in particular a central pipe of a filter housing (12), that penetrates through a flange-sided opening (18) of an end plate (20), in particular of an end element of a filter element (14). The sealing ring (26) features a central section (58) that connects it with the end plate (20). The sealing ring (26) features in its axial direction on both sides of the central section (58) elastic sealing sections (60, 62) which cause each a reduction of the inner diameter of the sealing ring (26) compared with the central section (58).

Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.

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: Crankcase ventilation filter assemblies are described and shown. Components, features and methods of assembly and use are described. Many of the principles relate to preferred cartridge configurations for engagement with selected housings. Selected optional features described can be used to provide indication to a service provider that a proper cartridge is not positioned appropriately in the housing for use.

Abstract: The present invention relates to an air filter pack frame constituted of four profiled elements being held together by angle pieces and surrounding an opening there between, in which a pack of pleated filter medium is intended to be mounted, said profiled elements having a front side, which when a pack of filter medium is mounted in the frame is adjacent to an inlet side thereof, and a rear side, which when a pack of filter medium is mounted in the frame is adjacent to an outlet side thereof. According to the invention an inwardly open sealing channel extends along each profiled elements in the front end thereof.

Abstract: According to the present disclosure, arrangements, systems, components, features and methods for separating hydrophobic fluid such as oil entrained as aerosols from gas streams, such as crankcase ventilation gas streams are described. The components specifically described include a filter cartridge with preferred features for interaction with a filter housing, and a filter housing with preferred features for convenient installation.

Abstract: Air filter having a preseparator with an optimized intake geometry, wherein an outflow geometry of a preseparator is matched to an intake geometry of a filter element.

Abstract: An air cleaner assembly, a main filter element, a safety element, combinations and methods for servicing an air cleaner assembly are provided according to the present invention. The air cleaner assembly includes an air cleaner housing and a main filter element. The air cleaner housing includes a safety liner that supports the main filter element, and can be configured to help reduce the tendency of the main filter element to rotate during use of the air cleaner assembly. A safety element having two open ends, for use with such an assembly is described.

Abstract: A filter cartridge, a safety element and fluid cleaner assembly are described. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The filter cartridge generally comprises z-filter media, arranged in a straight through configuration. Preferred cartridges include a 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. Preferred features are described. Methods of assembly and use are also provided.

Abstract: The invention relates to a compact filter element (1) for exchangeable use in a filter housing (2). The compact filter element (1) has a filter body (3) with a longitudinal axis (7) and at least one seal (4) arranged in the area of a front end (5) of the filter body (3), the seal having a seal section (8) which is arranged across the width (10) of a housing wall (6), sealing same. The seal section (8) projects beyond a front surface (12) of the filter body (3) in the direction of the longitudinal axis (7). The seal section (8) has a peripheral support wall (9) and at least one seal lip (17) integrally bonded to the outside of the support wall (9), across the width (10) of the latter, wherein the support wall (9) and the seal lip (17) consist of a rubber elastic material.

Abstract: A filter used to reduce the emission of silica particles used in hydraulic fracturing. The silica reduction cover is a custom fit filter installed onto vent hatches of proppant storage trailers. Proppant storage trailers, or “frac sanders,” have a series of vent hatches that release air and fine particles into the atmosphere during material transfer operations. The silica reduction cover is comprised of filter material and permits the controlled release of high pressure air at each vent hatch while reducing sand particle loss. The silica reduction cover maintains proppant sand product in the trailer for production use while significantly reducing the emission of airborne sand particles in the immediate work and adjoining site areas. The silica reduction cover incorporates a viewing window so that workers may monitor proppant levels in the storage trailer while the silica reduction cover is installed.

Abstract: An air filter cartridge has filter media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet.

Abstract: A filter cartridge for use in separating a hydrophobic liquid aerosol phase from a gas stream, as a crankcase ventilation filter for example, is described. The cartridge includes a media pack comprising filtration media surrounding an open interior and a first end piece. Various structure included on the first end piece is described. An example is a D-shaped projection. Also described is an assembly including the filter cartridge, specific features of a housing component of the assembly. Methods of assembly and use are also described.

Abstract: An air cleaner includes a housing and a tubular air cleaning element, which is accommodated in the housing. A tubular case of the housing has an end having an upstream opening and another end having a downstream opening. The upstream opening of the case is adapted to introduce air into the housing. A cap is attached to the downstream opening of the case. An annular sealing portion, which is held between the case and the cap, is provided in the outer periphery of the air cleaning element. The case includes a case body having the downstream opening and a support plate attached to the downstream opening of the case body. The sealing portion is held between the support plate and the cap.

Abstract: An air filter system, in particular for the intake air of internal combustion engines, is provided.

Abstract: A cassette filter assembly for removing particles from an air stream, in particular from a gas stream entering a gas turbine, has an upstream end and a downstream end and comprises a mounting frame to which a filter media is fitted and which has a mounting flange extension adapted for mounting the cassette filter to an opening of a partition. The mounting flange extension is positioned between the mounting face of the partition and the mounting face of the cassette filter such that continuous filter media is disposed partially within the clean side of the filtration unit and partially within the dirty side of the filtration unit.

Abstract: An air cleaner having a housing body and a removable cover and a filter element, in which the cover and the filter element rotationally interfere with each other by engagement between an inside surface of the cover and an outer radial periphery of the filter element. A filter element includes a pair of end caps, filter media, and an outer wall on the end cap circumscribing the filter media, in which the outer wall is non-circular. A method of installing a filter element into a housing includes orienting a cover over an element and a housing body by engaging an inside surface of the cover and an outer radial periphery of the filter element to rotationally interfere with each other.

Abstract: An air cleaner assembly and components therefor are provided. Features are described providing for a cantilevered support of a filter cartridge contained therein, and also, in some examples anti-rotational support. Also, a supported housing seal is shown. A filter cartridge arrangement is described and shown. Methods of assembly and use are also described.