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. 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.

A separating apparatus for separating liquid from gas has a housing with a connection device for connecting to a connection head of a machine along a connection axis. The housing has a gas inlet and a gas outlet surrounding the connection axis. A separating medium inside the housing separates gas inlet from gas outlet. A liquid collection chamber inside the housing at a clean gas side surrounds connection axis and gas outlet. A liquid drain leads out of the liquid collection chamber. Gas outlet and liquid drain lead out of the housing at a side provided with the connection device. A pipe section arranged inside the housing surrounds circumferentially the connection axis and forms at least partially a radially inner boundary of the liquid collection chamber. The pipe section leads to the gas outlet. The pipe section is functionally separated from mechanical force-transmitting connection elements of the connection device.

A filter assembly, has: a housing defining an internal volume and an outlet fluidly connectable to an oil system; a filter cartridge removably received within the internal volume of the housing; and an inlet conduit defining an inlet fluidly connectable to the oil system, the inlet conduit being in fluid flow communication with the internal volume of the housing, the inlet conduit having: a wall circumscribing a main flow passage from the inlet to the internal volume, and a sedimentation pocket defined by the wall, the sedimentation pocket extending downwardly away from the main flow passage and in a direction having a component parallel to a direction of a gravity when the filter assembly is in use.

An air filtering cover is configured to engage over an infant carrier to filter air communicated into an interior cavity thereof. A cover body has a top wall having a pocket with two sidewalls and a filter element and form a flowpath for air communicating through the body and filter to remove dirt, dust, and pathogens from air reaching the occupant of the interior cavity. The filter may be replaceable within a pocket formed in the cover body. A gauge strip may be positioned on the filter which changes in appearance when the filter needs replacement.

A filter system adapted for use with a paint spray booth having an inlet duct and an exhaust duct includes at least one movable cart formed with a housing having one or more surfaces for providing a housing inlet and an housing outlet, at least one filter media element arranged within the housing and positioned between the housing inlet and the housing outlet, and at least one movable device having at least one sealing element. The filter system further includes an inlet hood securely attached to the inlet duct and an outlet hood securely attached to the exhaust duct. The at least one movable cart is configured to move for making contact with the at least one seal between the housing inlet and the inlet hood, and between the housing outlet and the outlet hood.

A filter that is self-locking to a filter manifold includes a flange having a major axis and a minor axis in plan view, and that is longer along the major axis than the minor axis. The filter further includes a stopper on the major axis, that can contact a filter manifold when the filter is inserted into the manifold and rotated. The filter can be used with a filter manifold having a slot with an opening having a width greater than the length of the minor axis and smaller than the length along the major axis of the flange, and past the opening, has sufficient width to accommodate the length of the major axis. This arrangement allows the flange to be inserted into the slot in an insertion orientation, but does not permit the flange to pass through the opening of the slot when it is in a locking position.

A filter has a filter housing with a housing cover coupled to a housing part to close a receiving space receiving filter elements each provided with a filter medium body and a frame device around the filter medium body. The filter housing has a radially inwardly projecting, circumferential contact shoulder in the receiving space. The housing cover, when mounted, exerts an axial clamping force on the frame device of a first filter element. An axial end of the first filter element facing away from the housing cover rests on the frame device of a second filter element. The clamping force is transmitted through frame device of first filter element to frame device of second filter element. The frame device of the second filter element has a circumferential seal with a hollow chamber profile pressed by the clamping force on the contact shoulder to seal-tightly contact the contact shoulder.

A filter cartridge for an air cleaner assembly is disclosed. The filter cartridge can include a media pack configured for installation into an air cleaner housing, the media pack extending along a longitudinal axis between opposite inlet and outlet flow ends, the media pack defining an outer perimeter. The filter cartridge can also include a circumferential shell surrounding at least a portion of the media pack outer perimeter. A radial flange extending from the circumferential shell proximate the media pack inlet end can also be provided. The flange can define a plurality of openings that are configured to receive protrusions on a housing body of the air cleaner assembly. The interaction between the protrusions and openings operates to ensure a secure seal between the housing body and the seal member.

A filter module, including a plurality of filter elements for separating overspray from an air flow, the filter module including a reusable and cleanable frame configured as a support structure for components for collecting overspray, and a plurality of components inserted into the frame for collecting overspray, wherein the components for collecting overspray are at least filter elements and linings in the frame, which are configured as disposable, single-use products the filter elements form at least a first filter stage, and all the surfaces of the frame which are exposed to the air flow upstream of the first filter stage are provided with the linings such that the surfaces of the frame are protected against overspray.

A gas-liquid separation device includes a housing assembly, a separation assembly, a bottom end plate, an exhaust pipe, and a seal. A separation chamber is defined in the housing assembly. A bottom of the housing assembly has a through-opening. The separation assembly performs gas-liquid separation on a gas-liquid mixture. The bottom end plate is located at a bottom of the separation assembly. A liquid reservoir is defined by the bottom end plate and receives a liquid separated by the separation assembly. The exhaust pipe has an exhaust channel and a liquid discharge channel. The exhaust pipe passes through the through-opening to allow a gas separated by the separation assembly to flow through the exhaust channel. A flow diversion cavity is defined between the exhaust pipe and the bottom end plate, and is in communication with an outlet of the liquid reservoir and an inlet of the liquid discharge channel.