A filter element includes a construction of pleated filter media defining an interior volume. First and second opposite end caps are secured to opposite ends of the filter media. A support structure supports the filter media and is operably oriented in the interior volume. The support structure extends from the first opposing interior face to the second opposing interior face. The support structure is provided to extend less than a full extension between the first end cap and second end cap.

An internal combustion engine includes an engine block, an air-fuel mixing device, and an air filter assembly. The air filter assembly includes a housing, a filter element, and a gap between the filter element and the housing. The housing includes a base and a cover which define an interior volume. The housing includes an outlet passage fluidly coupling a filtered air outlet to a final air outlet. The filter element divides the interior volume into a filtered volume and an unfiltered volume. The gap is configured to direct air in a first airflow pass before being filtered by the filter element. The filter element is configured to direct filtered air in a second airflow pass in a substantially opposite direction from the first airflow pass. The outlet passage is configured to direct filtered air into a third airflow pass in a substantially same direction as the first airflow pass.

Disclosed is a method of filtering air in a closed work environment that includes placing a primary air filter assembly in the closed work environment, where the primary air filter assembly includes a first air input and a first air output. The first air output is poised to emit once-filtered air outside the closed work environment. The method also includes placing a secondary air filter assembly in the closed work environment, where the secondary air filter assembly includes a second air input and a second air output.

A device for the treatment of fluid mixtures containing gases, such as in particular hydrogen, air, nitrogen or noble gases, and liquids, such as in particular ionic liquids, hydraulic oil or process liquids, having at least one separating stage (30) for separating the fluid mixture into a gas portion and a liquid portion, which, routed into a collection space (32), results in a float (44) rising, which, at a predeterminable liquid level in the collection space (32), actuates, without contact, a sensor device (42), which preferably actuates a discharge device for the purpose of draining the collection space (32), resulting in the lowering of the float (44), is characterized in that the outer circumference of the float (44) is guided axially displaceably along the inside of the housing wall (54) of the collection space (32), and in that the float (44) has at least one point of passage (50) for gas and/or liquid, which interconnects parts of the collection space (32) in a media-conveying manner, which parts are spatially separated from one another by the float (44).

A foreign substance capturing apparatus according to an embodiment of the present invention may comprise: a capturing body unit having an inlet port for introducing the air including magnetic foreign substances and an outlet port for discharging the air from which the magnetic foreign substances have been removed; and a magnetic isolation unit connected to the capturing body unit, including a magnetic member for isolating, by an attractive force, the magnetic foreign substances from the air flowing in the capturing body unit, and provided with a non-magnetic member surrounding the magnetic member.

A filter media holder for securing a filter media within a filter housing comprises a first grill plate having a plurality of first apertures defined therethrough, and a second grill plate having a plurality of second apertures defined therethrough. In a first configuration, the second grill plate is spaced apart from the first grill plate to allow a filter media to be disposed on the first grill plate or the second grill plate, and in a second configuration, the second grill plate is disposed proximate to the first grill plate such that the filter media is secured between the first grill plate and the second grill plate.

A filter for filtering particulates from a fluid stream includes a filter element, a first end cap, a second end cap, and a wrap. The end caps are respectively secured to the ends of the filter element to form a fluid tight seal therebetween. At least one of the end caps defines an opening therethrough in fluid communication with the interior passage of the filter element. The wrap is in the form of a strip secured to at least the filter element. The wrap comprises a conductive layer comprising an electrically-conductive material. The wrap is wrapped around the filter element such that at least forty percent of the outer surface area is covered by the conductive layer.

A filter element configured to be installed by sliding said filter element into a filter housing cavity along a first direction, said filter element comprising a handlebar pivotable around a pivoting axis perpendicular to said first direction; wherein said handlebar has a gripping portion on a first side of said axis and a latching portion on a second side of said axis, said second side being opposite said first side; and wherein said latching portion is configured to enter into engagement with at least one locking groove of said filter housing when said gripping portion (110) is moved into a first direction (A) and to disengage from said engagement when said gripping portion is moved into a second direction (B).

The present invention is directed to a unit and/or process for treating mill scale containing hydrocarbons, which improves emission levels and allows better control of the temperature during the heating stage. The unit and/or process comprises an indirect-fired rotary thermal reactor (2), a pre-treatment duct (18), a two-stage recovery unit wherein the first stage comprises an oil recovering assembly (4) and the second stage comprises an oil and water condensing unit (6), a coalescing oil filtration system (8) and a reactor combustion chamber (17) for recycled fuel.

A vehicle air filtration assembly includes a box having a longitudinal axis and a wall extending along first and second axes. A filter cartridge includes tubular filter media operatively connected to a plate group. The plate group has a first face with a sealing profile and a second face having at least two contact profiles. The filter cartridge is insertable into the box along an insertion direction substantially parallel to the first or second axis. The box includes a housing region between the wall and contact elements longitudinally spaced from the wall and axially spaced from each other. The plate group is housed in the housing region with the a sealing profile engaged with the wall and the contact profiles engaged to the contact elements. The sealing profile or contact profiles are shaped/positioned at variable vertical distances relative to an imaginary extension plane.