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.

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.

An intake system component of an internal combustion engine includes a porous material product and a resin molded portion. The porous material product is formed from a porous material and includes an outer edge and a general portion. The resin molded portion encompasses the outer edge and is formed integrally with the porous material product. The general portion is located outside the resin molded portion. The outer edge has a lower filling density than the general portion.

A housing of an air cleaner includes a housing body, which has a wall portion formed of a plastic molding and is configured such that an opening is formed in a part of the wall portion, and an adsorption sheet, which is fixed to a peripheral portion of the opening and closes the opening. The adsorption sheet includes an outer fiber molding, an inner fiber molding, which is provided at a position inward of the outer fiber molding, and an adsorbent, which is located between the outer fiber molding and the inner fiber molding and adsorbs fuel vapor of the internal combustion engine.

The invention relates to a filter material impregnated on one side with a binding agent that is in particular suited for gas filtration, wherein the filter material comprises a side that is not impregnated with a binding agent, which side contains a halogen-free and boron-free flame protection means. By means of the filter material according to the invention, a high separation rate and a high dust storage capacity are achieved, whereas the filter material is flame-retardant, and in the event of fire, does not release any toxic decomposition products. The invention further relates to a filter element comprising the filter material according to the invention.

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.

An air filter, an air filter assembly, and method of installing the air filter into a housing of the air filter assembly are provided. The air filter includes an attachment portion and a lock tab. The lock tab is carried by and resiliently moveable relative to the attachment portion. The lock tab is located radially outward from the attachment portion and movable circumferentially about a central axis of the air filter. Another feature relates to using an end stop in a housing as a catch. Yet another feature relates to using a perforated end cap and capping such perforations with a housing seal

An air pre-filter assembly is provided for installation in the OEM air inlet of an internal combustion engine in a vehicle. The pre-filter assembly includes a polyester fiber filter retained in the inlet duct by a spring-clip or a ring. The pre-filter and ring reside completely within the air duct, and requires no additional structure. The pre-filter assembly is located upstream from the primary filter, and can be replaced or removed for cleaning, as needed.

A housing of an air cleaner includes a housing body, which has a wall portion formed of a plastic molding and is configured such that an opening is formed in a part of the wall portion, and an adsorption sheet, which is fixed to a peripheral portion of the opening and closes the opening. The adsorption sheet includes an outer fiber molding, an inner fiber molding, which is provided at a position inward of the outer fiber molding, and an adsorbent, which is located between the outer fiber molding and the inner fiber molding and adsorbs fuel vapor of the internal combustion engine.

An air cleaner includes a housing and a filter element located within the housing. The housing includes a housing body and a fiber molding assembly. The housing body is formed by a plastic molding. The housing body has a wall located upstream of the filter element in an air flow direction and a recess, which is an inwardly recessed part of the wall. The fiber molding assembly is fixed to the wall, covers the recess from outside, and forms a part of a side wall of an inlet passage together with the recess. A communication hole for communication between the inlet passage and an interior of the housing body is formed in the recess.