The present disclosure relates to a filter housing having a bowl and a head. The bowl is configured to house a portion of a filter cartridge. The bowl has an annular groove disposed about a rim of the bowl. The head is configured to mate with the bowl. The head includes an inlet, outlet, and a pair of levers. The inlet is to receive a flow of fluid into the filter housing. The outlet is to release the flow of fluid from the filter housing. The pair of levers are to draw the bowl partially into the head. Each lever has a first arm configured to mate with the annular groove, a second arm having a bearing surface, and a pivot disposed between the first arm and the second arm. A force upon the bearing surface urges the bowl into the head to form a seal.

An annular filter element and sealing element for an oil separator of a crankcase ventilation system, the filter element has a covering surface extending parallel to a direction of flow, together with at least one cover element covering surface in at least some regions. An oil separator is taught having the filter element with at least one pressure control valve controlling crankcase pressure and has a valve closing body that operates in conjunction with a valve seat. The sealing element having at least one radially sealing region that is configured to act in the direction of the radius of the annular filter element, and at least one axially sealing region that is configured to act in the direction of the longitudinal axis of the annular filter element.

An air filter housing for intake air of an internal combustion engine has a housing pot having a housing wall and a receiving opening. The receiving opening is delimited circumferentially by a free rim section of the housing wall. Through the receiving opening, an air filter element with circumferential radial sealing element is insertable into the housing pot and a housing cover closes off the housing pot. The radial sealing element, when the air filter element is inserted into the housing pot, projects radially outwardly past the free rim section and seals housing cover and housing pot relative to each other. The housing pot is provided externally with a stop that limits axial deformation of the radial sealing element relative to the free rim section of the housing wall when the housing cover is placed onto the housing pot.

An apparatus and a method are provided for an air filter configured to be mounted onto air inlets of turbochargers and superchargers. The air filter comprises a proximal base including an inlet receiver configured to receive an air inlet, a clamp to secure the air inlet within the inlet receiver, and a first opening aligned with a screw mechanism of the clamp. A filter medium fastened to the proximal base is configured to remove particulate matter and other contaminates from an incoming air stream. A distal end cap fastened to the filter medium comprises a second opening aligned with the first opening. A conduit within an interior cavity of the air filter is disposed between the first opening and the second opening, facilitating tightening and loosening the clamp by extending an appropriate tool through the interior cavity so as to engage the screw mechanism of the clamp.

The present disclosure provides methods and apparatus for user customizable configurations and replacement of a heating, ventilation and air conditioning filter media and frames. A filter media may be combined with a media frame according to user specifications. One filter media or combinations of multiple filter media may be chosen by a user to create custom filter configurations. Filter media may be separated from the media frame and disposed of in a manner generally more convenient than traditional HVAC filter replacement.

An apparatus is provided including an air filter housing, a receiver on the air filter housing and a discrete mounting feature secured to the air filter housing at the receiver.

Air cleaner assemblies, components, and features are described. The features can be used to provide that the air cleaner assembly includes a housing and cover within which primary and secondary filter cartridges, having a media pack and a seal arrangement surrounding the media pack, can be installed. The filter cartridges can include an open end cap with an axially deviating seal arrangement and a plurality of axially extending channels for engaging with ribs on the housing. The filter cartridges can also include extension members extending from the open end cap that include the axially extending channels, entirely or partially. The filter cartridges can also include a guide member extending from the extension members for providing a low friction surface against the housing during installation that allows axial force exerted by the installer to be translated into a rotational force that rotates the filter cartridge during installation.

A filtration system for a fuel cell hybrid propulsion system includes a first stage filter, a second stage filter positioned downstream of the first stage filter, and a third stage filter positioned downstream of the second stage filter and configured to be positioned upstream of a fuel cell system. The first stage filter has first pores with a first mean pore size. The second stage filter has second pores with a second mean pore size. The third stage filter has third pores with a third mean pore size. The second mean pore size is less than the first mean pore size. The third mean pore size is less than or equal to the second mean pore size. The first, second, and third stage filter are structured to filter an airflow prior to being received by the fuel cell system.

A filter apparatus for filtering a stream of gas is disclosed. The apparatus has a head with an inlet and an outlet, the head also having a first flow conduit connected to the inlet and a second flow conduit the outlet. The apparatus also has a filter and a bowl which contains the filter and is connected to the head. The bowl an annular recess. There is also a connector for connecting the filter to the head and the bowl. The part of the connector that engages the bowl has a protrusion that is inserted into the recess.

A filter including a filter media pack, first and second preform members and first and second adhesives is provided. The first preform member is disposed over the media pack. The first preform member has a wall defining a well. The wall defines a notch. The first adhesive in the well attaches the first preform member to the filter media pack. The first adhesive has a contact region disposed in the notch. The second preform member is disposed over the first preform member. The second adhesive bonds the first preform member over the first preform member. The second adhesive engages with the first adhesive at the contact region.