A filter cartridge arrangement is provided which includes a media pack comprising Z-filter media, a preform and a housing seal member. Improvements in the preform and seal member are described which include: a single beveled surface of the seal member to facilitate installation; and, an inside region of the seal member having a tip adjacent in inwardly directed lip of the preform, to control flash during molding. A variety of media pack configurations and features are described.

An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.

A housing (110) having a housing body (112), connected to a mating housing cover (114) are arranged along a longitudinal axis (A). The housing (110) receives a filter element (10). A push-twist structure (120) is provided on the housing body and the housing cover connecting the housing body (112) and housing cover (114) by way of a push-twist mount. The push-twist structure (120) having mating push-twist elements (122, 124) arranged on the housing body (112) and the housing cover (114). An anti-rotation lock structure (160) is provided for securing the push-twist structure (120) in its closed position in an anti-rotation lock manner.

A fluid filter element for circular locking engagement with a filter support, the fluid filter element including a filter medium arranged about a longitudinal axis, first and second end caps arranged at opposite cylindrical ends of the filter medium and sealed thereto, at least one locking protrusion located on the second end cap for rotatably locking the fluid filter to the filter support and at least one releasable retainer located on the second end cap and associated with at the at least one locking protrusion for retaining the at least one locking protrusion in locking engagement with the filter support and being operative, when released, to allow rotatable unlocking of the fluid filter element.

A flat air filter element for an air filter has a filter medium of cellulose material and a sealing element extending circumferentially about the filter medium. Sealing element and filter medium have at least one recess at an outer contour of the flat air filter element. The sealing element has a circumferentially extending holding groove to be engaged by a housing part of a filter housing. The filter housing has a housing pot, a housing cover to cover the housing pot, and a closure element for closing the filter housing. The flat air filter element is secured in the closed state of the filter housing by circumferentially clamping the sealing element between housing pot and housing cover. The circumferentially extending holding groove of the sealing element is engaged by housing pot or housing cover. The closure element of the filter housing is arranged in the region of the recess.

In an intake device for an internal combustion engine, a first resonator chamber (61) is defined between a clean side chamber (56) and a peripheral wall (8) of a case (2), and a first communication passage (61B) communicating a dust side chamber (55) with the first resonator chamber is extending along the peripheral wall of the case.

A filter housing has a first housing part with a first rim section and a second housing part with a second rim section. The housing parts can be joined and separated from each other in axial mounting direction and define a housing interior for a filter element provided with a circumferentially extending sealing element. The first and second rim sections form a receiving area in which the sealing element is seal-tightly clamped radially between the first and second rim sections when the housing parts are joined in the mounted state. A snap connecting device axially braces the first and second housing parts relative to each other. The snap connecting device is formed integrally on the first and second housing parts such that a clamping force applied by the first and second rim sections on the sealing element in radial direction is decoupled from the snap connecting device.

An air cleaner assembly including a tray including a cleat receptacle at a back side of the assembly and a cover including a cleat at the back side. The assembly further includes guide features arranged at a front side of the assembly. The guide feature are designed to contact one another continuously and guide the cover rearward, from an unseated position to a fully seated position where the cleat is seated within the cleat receptacle.

An air cleaner assembly including a tray including two cleat receptacles spaced apart from one another at a back side of the assembly and a cover including two cleats at the back side, each of the two cleats adapted to seat within one of the two cleat receptacles. The assembly further includes a mounting bracket coupled to the tray, between the two cleat receptacles. The mounting bracket includes a guide rib extending outward from the mounting bracket, toward the cover.

An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.