An air box and methods are provided for communicating an airstream through an air filter to an air intake duct of an internal combustion engine of a vehicle. The air box generally transports air received by way of air inlet ports that mate with aerodynamic elements of the vehicle. The air is received through a conduit to an air intake duct of the engine. The air box comprises an enclosure that is formed in a substantially rigid/solid form. A substantially transparent inspection region is disposed on a surface of the enclosure so that the air filter may be viewed and potentially accessed if desired.

A filtration system includes an air cleaner housing and a filter element. The air cleaner housing includes a base and a removable cover. At least one of the base or the cover defines a cavity and a protrusion extending into the cavity. The filter element is disposed within the cavity. The filter element includes a plurality of media blocks each including a pleated filter media. The plurality of media blocks are arranged in arch shapes of approximately equal inner radii. The plurality of media blocks are coupled to each other along opposing edges that extend along a pleat direction of the pleated filter media. The media blocks together define at least one void that extends along the protrusion. The protrusion occupies a portion of the void.

The invention relates to a filter element (10), comprising a filter body (12) in concentric form having a longitudinal axis (L), a first end disk (16) situated on one end face (15), and a second end disk (18) situated on the opposite end face (17), and a support tube (14) situated concentrically around the longitudinal axis (L) between the first and the second end disks (16, 18). At least one of the end disks (18) may have support knobs arranged in a circular arrangement about the longitudinal axis and extending in axial direction outwardly. The at least one end disk may have a centering element (22) that is situated around the longitudinal axis (L), as a result of which the filter element (10) can be radially centered during installation in the housing (108). A support structure (20) may be provided on the at least one end disk (18) which is concentric with respect the centering element (22) and is provided for at least axially supporting the filter element (10) in the housing (108). The invention further relates to a filter system (100) for exchangeably installing such a filter element (10).

A filtration monitoring system is an electronic system control module installed on an internal combustion engine or within a vehicle powered by the internal combustion engine. The filtration monitoring system monitors the health and status of the filtration systems present on the engine. The filtration monitoring system tracks filter loading patterns and predicts remaining service life of the filters by running smart algorithms based on sensor feedback (e.g., pressure sensor feedback, fluid quality characteristic sensor feedback, etc.). In some arrangements, the described filtration monitoring systems provide feedback as to whether a genuine (i.e., authorized, OEM approved, etc.) or unauthorized filter cartridge is installed in a given filtration system. The filtration monitoring system may be retrofit into an existing internal combustion engine or vehicle that does not already have a filtration monitoring system.

An agricultural vehicle air cleaner assembly having at least one cyclonic generator to enable the removal of suspended particles from an airflow through the air cleaner assembly. The cyclonic generator has at least one vane which acts to generate a cyclone downstream of the generator, where the pitch of the vane is adjustable. By adjusting the pitch of the vane, the cyclones generated by the air cleaner assembly for a given airflow can be adjusted, thereby allowing for dynamic adjustment of the particle removal effect of the air cleaner assembly.

A filtration monitoring system is an electronic system control module installed on an internal combustion engine or within a vehicle powered by the internal combustion engine. The filtration monitoring system monitors the health and status of the filtration systems present on the engine. The filtration monitoring system tracks filter loading patterns and predicts remaining service life of the filters by running smart algorithms based on sensor feedback (e.g., pressure sensor feedback, fluid quality characteristic sensor feedback, etc.). In some arrangements, the described filtration monitoring systems provide feedback as to whether a genuine (i.e., authorized, OEM approved, etc.) or unauthorized filter cartridge is installed in a given filtration system. The filtration monitoring system may be retrofit into an existing internal combustion engine or vehicle that does not already have a filtration monitoring system.

A system and method of treating air. Bipolar ionization is delivered to an airflow within a conduit from a tubeless ion generator. The ionized airflow may be delivered to a conditioned airspace by an HVAC system. In alternate applications, the airflow delivers ionized combustion air to an engine. The invention also includes a mounting assembly for positioning one or more ion generators into an airflow.

A vehicle resonator includes a mounting portion provided in an air cleaner housing of a vehicle, and a resonance container mounted on the mounting portion to be replaceable in a sliding manner and having a resonance space therein communicating with an intake passage inside the air cleaner housing.

An apparatus for removing debris from the intake of an engine includes an air cleaner housing with an inlet opening, an air entry cavity, one or more turbulent flow tubes, and at least one outlet opening. The inlet opening in the air cleaner housing is configured to receive an incoming flow of air from a blower. The air entry cavity is coupled with the inlet opening of the air cleaner housing. The one or more turbulent flow tubes configured to divide the flow of air from the air entry cavity and remove debris from the flow of air. The at least one outlet opening in the air cleaner housing is coupled to the one or more turbulent flow tubes and configured to expel the debris from the air cleaner housing. In addition, excess air from the air cleaner housing and/or combustion air is expelled from the air cleaner housing.

A filter box assembly for a branched intake system in a vehicle includes an air filter and a filter box housing the air filter. The air filter has a downstream face. The filter box defines an airflow path between a dirty air intake opening and multiple clean air output openings, has a clean air section at the downstream face of the air filter from which each of the clean air output openings open, and includes an interior wall in the clean air section that branches the airflow path to each of the clean air output openings at the downstream face of the air filter.