Abstract: A filter assembly for an engine, has: a housing having a longitudinal axis and defining an internal volume, the housing having an open end and defining an oil inlet and an oil outlet, the internal volume having a first zone and a second zone, the first zone in fluid communication with the oil inlet, the second zone in fluid communication with the oil outlet; a cartridge assembly having a filter cartridge, and a cover sealingly engageable to the housing to close the open end of the housing, the filter cartridge axially locked in the housing by the cover, the cover removably securable to the housing; and a sealing member between the housing and the cartridge assembly, the sealing member separating the first zone from the second zone such that the first zone communicates with the second zone through the filter cartridge.

Abstract: Skid-mounted flue gas injection equipment and method with an adjustable CO2 enrichment degree are disclosed, and belongs to the technical field of experimental devices for oil and gas field development engineering. As for the equipment of the present disclosure, it is of a skid-mounted structure, is compact in structure, modular, easy to install, and highly mobile, can be applied to remote regions of overland deserts and narrow spaces on offshore platforms, has very high flexibility in operation and maintenance, and in most cases requires lower capital costs and lower energy consumption. As for a membrane separation unit of the present disclosure, a corresponding permeable gas storage tank is designed for each stage of membrane separator. Moreover, the membrane separation unit is further provided with a retained gas storage tank, and the retained gas storage tank and each stage of permeable gas storage tank are each provided with an injection port.

Abstract: A medical breathing gas filter housing includes a first housing body including a first port, and a second housing body including a second port. The gas filter housing is configurable between a closed state and an open state. In the closed state, the first housing body is snap fit to the second housing body such that first and second interior sides of the first and second housing bodies, respectively, define a cavity, the cavity sized to receive a replaceable gas filter media. In the open state, the first housing body is separated from the second housing body to provide access to the cavity.

Abstract: According to the present disclosure, features, components and techniques useable for providing air cleaner arrangements are provided. Many of the features relate to an axial seal arrangement provided on a filter cartridge. A typical filter cartridge, for use with these features, is a filter cartridge having opposite flow ends. Example media arrangements that fit this characterization are described. Seal arrangements provided with an axial housing sealing engagement surface are shown. A seal arrangement is provided with variations therein, to advantage. These variations can be in either or both of an outer peripheral edge surface and a housing seal engagement surface. Also, air cleaner assemblies having advantageous features therein are provided. Further, air cleaner housings are described, with selected, preferred features for engagement with filter cartridges.

Abstract: An air treatment system for an agricultural vehicle includes an air filtration apparatus having an air filter housing for receiving an air filter cartridge and downstream air processing apparatus fluidly connected with the air filter housing by a duct. The system can receive first and second type air filter cartridges having corresponding first and second outlet sealing configurations. The duct has inner and outer conduits that define an inner flow path and an outer flow path. A filter sealing arrangement of the duct can engage with either type of filter cartridge. This enables two different types of filter cartridge, which may be configured to provide different levels of filtration, to be selectively mounted to the system in the same housing. Air flow may be restricted to the inner flow path when one type of air filter cartridge is fitted.

Abstract: An air filter media construction or arrangement is disclosed. The air filter media construction or arrangement includes facing media secured to fluted media. A preferred projection/receiver arrangement is described. Also, a useful seal arrangement is described. Air cleaner assemblies, methods of assembly and use are also provided.

Abstract: An HVAC system within a building including an HVAC device having an air filter, a number of sensors, and a control device. The control device has a processor that is configured to determine a current air quality metric based on air quality measurements received by the sensor. The control device is further configured to calculate an average air quality metric based on the current air quality metric and a set of previous air quality metrics. The control device is further configured to store the average air quality metric. The control device is further configured to generate an air filter type recommendation based on the average air quality metric.

Abstract: A tube unit includes multiple tubes and bundling portions that bundle end portions of respective tubes at opposite ends of the tubes. At least one of the end portions of respective tubes has a tube wall portion that tubularly extends in an extension direction of the tubes and also has a protrusion protruding radially outward from the tube wall portion.

Abstract: Filter cartridges including tubular filter media having ovate cross-sections and filter systems using the ovate tubular filter cartridges are described herein. The inner perimeters of the ovate cross-sections of one or more of the filter cartridges may be asymmetric, i.e., the inner perimeters of the cross-sections of the tubular filter media in the filter cartridges may have no lines about which they are symmetric. The inner perimeters of the ovate cross-sections of the tubular filter media in one or more of the filter cartridges may have only one line of symmetry.

Abstract: The present invention relates to a surface modified zeolite adsorbent wherein the surface of said zeolite is modified with a coating comprised of a silicone derived species, said zeolite having a mean crystal size from about 5 to about 10 ?m and a skeletal density of ?1.10 gr./cc. The invention is based on the discovery that larger crystals tend to have higher particle density, and the packing of the larger crystals in agglomeration processes leads to more idealized packing to provide a larger mean-pore diameter. The surface modified adsorbent provides rate selectivity for one gas over others is described. The superior adsorbent has the added convenience of bead forming simultaneously with pore modification as well as having the treatment result in the yielding of high crush strength products.

Abstract: Air filter cartridges are disclosed. Also described are air cleaners including the filter cartridges. Methods of assembly and use are also provided. Also, systems of use are described.

Abstract: Air cleaner assemblies, components, and features are described. The features can be used to provide that the air cleaner assembly cannot be fully closed, even if a cartridge is nested therein, and appears to be sealed, unless that cartridge is a proper one for the system of concern. The effect is to prevent an inappropriate cartridge, that does not properly seal, from being inadvertently installed in the assembly.

Abstract: Systems and methods for coupling filter elements to at least one flange extending inside a housing are disclosed. In one aspect, a filter system may include a housing having an inlet, an outlet, a first end, a second end, a sidewall extending between the first end and the second end, a longitudinal centerline, and at least one flange extending inside the housing; and a plurality of filter elements located inside the housing, the plurality of filter elements each including an end shaped to couple directly to the at least one flange.

Abstract: A filter element for filtering a fluid has a zigzag-shaped folded filter medium with fold edges neighboring each other. A thread is attached by an adhesive material to the fold edges. The thread is a multiple-wound yarn. In a method for manufacturing the filter element, a thread in the form of a multiple-wound yarn is attached by an adhesive material to fold edges of a zigzag-shaped folded filter material. In the method, the thread is soaked and/or coated with the adhesive material that is in a plastic state. The thread soaked and/or coated with the adhesive material is attached to the fold edges by applying a pressure, and the adhesive material is hardened.

Abstract: There is provided a system and method for collecting water droplets from an airflow of a cooling tower (8) through condensation of water vapour using an electrostatic separator (20), wherein the electrostatic separator is a single unit electrostatic separator (20) or a multi-unit electrostatic separator. The method for water particles collection from the exhaust airflow of a cooling tower primarily comprises condensing water vapour into large water droplets. It is experimentally proved that electrostatic separation solves the problem of visible plume pollution, and blow down decreased since collected water flows back to the circulating water. Additionally, electrostatic separation results in small pressure drop of the cooling tower (8).

Abstract: A heat and mass exchanger system comprising: a first array of tubes, each of said tubes having an coating of a desiccant about a peripheral surface; an interstitial space between said tubes, said interstitial space arranged to receive a fluid, such that at least a portion of the peripheral surface is a wetted area of said fluid; said tubes arranged to transport a heat transfer liquid within an internal bore, said fluid and heat transfer liquid in heat transfer communication; wherein the cross sectional shape of each of said tubes is convex.

Abstract: Air filter device comprising: one or more pleated air filters where the pleated air filters are cylindrical and designed according to the relation Gu=fhPr,/(2ro?0.25)>0.8; and a motor for rotating the pleated air filters, wherein ?r(ro?ri)/?s; ro=outer radius of the cylindrical pleated filter, fh=height of the cylindrical filter, ri=inner radius of the cylindrical pleated filter, ps=distance between two adjacent pleat tops on the inner radius, ?-ASHRAE efficiency.

Abstract: Disclosed is a filter conditioning unit for cleaning and conditioning high-volume sampling (HVS) filters. The unit includes, among other elements, a filter tray suitable for holding one or more HVS filters, a manifold in which the filter tray is inserted, and an optional enclosure for safety. The manifold is suitable for heating the filter tray and filters therein to a desired temperature while purge gas is introduced to the manifold. Also described herein is a method of using the filter conditioning unit.

Abstract: According to the present disclosure, air cleaner assemblies, components, features, and methods relating thereto, are described. These features, in part, relate to configuration of a preferred seal arrangement and seal surface of the cartridge. Particular arrangements are shown, in which: the filter cartridge includes a seal arrangement having a axial pinch seal surface with a projection/recess contour including at least one projection thereon; and, the cartridge includes a seal contour projection stabilizing portion at a location in perimeter alignment with the portion of the seal pinch arrangement including the first housing engagement projection. Additional features are included that relate to clean air separator section tubes of a precleaner arrangement secured to a cartridge. These features can be used in cartridges including features outlined above, or in alternative cartridges. Additional features of air cleaner arrangements and filter cartridges in accord with the above are described.

Abstract: A gas turbine air intake system uses a filter element having a seal member with radial projections and radial recesses. The seal member forms a seal with components on the tube sheet of the system and at the end opposite of the tube sheet. At the end opposite of the tube sheet, there can be an assembly cover, or alternatively, an additional filter cartridge.