The present invention relates to a porous sheet product, to a filter element comprising the porous sheet product, to a method for producing the porous sheet product, to a method for producing the filter element, and to the use of the sheet product and of the filter element.

An air filter arrangement is disclosed. The air filter arrangement includes media comprising corrugated media secured to facing media and defining a media pack having opposite flow faces. 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.

A filter arrangement includes: a filter element in a first filter stage, the filter element having a filter material for filtering an air stream; a housing for receiving the filter element; and a circumferential gel seal arranged between the filter element and the housing in order to seal the filter element from the housing.

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 filter cartridge is provided. The filter cartridge includes a pack of filter media having an inlet face and an outlet face. The filter media pack further includes opposite first and second sides and opposite first and second ends. The sides and ends extend transversely between the inlet and outlet faces. The sides also extend transversely between the ends such that each end has an external non-planar, curved or multifaceted geometry. The filter cartridge further includes a pair of end caps located against each end of the filter media pack. Each end cap has an internal surface with a geometry closely matching the geometry of the associated filter media pack end. Further, an adhesive is disposed between the filter media pack and the end caps to secure them together.

A method for producing a filter element provided with a sealing part in which the sealing material is introduced into a casting chamber between two tundish parts when in the non-cured state, and a compensation space connected to the casting chamber for the expansion of the sealing material.

The present disclosure relates to a filter element comprising a filter medium pack and a support arrangement comprising at least a shell member, and wherein a portion of the shell member is thermally welded to a circumferential face of the filter medium pack. The present disclosure further relates to a method of manufacturing such a filter element, the method comprising heating at least a portion of the shell member of the support arrangement, positioning the shell member around the circumferential face of the filter medium pack, pushing the heated circumferential portion of the shell member against the circumferential face of the filter medium pack, and allowing the circumferential portion of the shell member to cool down.

A filter is disclosed. The filter includes a sheet of filter media defining a body having an upper portion, a lower portion, a first end surface proximate the upper portion, a second end surface proximate the lower portion, and a first side surface extending between the first and second end surfaces. One or more of the upper and lower portions define a ledge, wherein the ledge defines a third end surface arranged between the first and second end surfaces, and a second side surface extending between the first and third end surfaces; and a seal disposed upon the ledge. A method for manufacturing the seal is also disclosed.

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 filter is disclosed. The filter includes a sheet of filter media defining a body having an upper portion, a lower portion, a first end surface proximate the upper portion, a second end surface proximate the lower portion, and a first side surface extending between the first and second end surfaces. One or more of the upper and lower portions define a ledge, wherein the ledge defines a third end surface arranged between the first and second end surfaces, and a second side surface extending between the first and third end surfaces; and a seal disposed upon the ledge. A method for manufacturing the seal is also disclosed.