Abstract: A filter element may include filter media having an elongated hollow passage extending along a longitudinal axis and between a first end and a second end, with the filter media having an exterior surface. The filter element may also include first and second fins associated with and extending radially from the exterior surface of the filter media. The filter media may include a first filtration zone extending partially around the hollow passage and between the first fin and the second fin, with the first filtration zone being associated with a first portion of the filter media. The filter media may also include a second filtration zone extending partially around the hollow passage and between the first fin and the second fin, with the second filtration zone being associated with a second portion of the filter media.

Abstract: A filter element may include an outer tubular member and an inner tubular member at least partially inside the outer tubular member. The filter element may also include a first cap and a second cap coupled to respective first and second ends of the outer tubular member. The filter element may further include filter media configured to promote separation of a first fluid from a second fluid. The filter media may extend between the first cap and the second cap. The first cap may be configured such that fluid entering the filter element flows between the inner tubular member and the outer tubular member, and through the filter media. The filter element may be configured such that a portion of the fluid may flow from a first side of the second cap to a second side of the second cap, but not into the inner tubular member.

Abstract: A filter element may include a canister, a first cap coupled to a first end of the canister, and a second cap coupled to a second end of the canister. The filter element may further include an outer tubular member extending between the first cap and the second cap, and an inner tubular member. The outer and inner tubular members may each include a plurality of apertures. The filter element may further include filter media configured to promote separation of a first fluid from a second fluid as fluid passes through the filter media. The filter element may be configured such that fluid entering the filter element flows between an interior surface of the canister and an exterior surface of the filter media and through the filter media, such that a portion of the fluid flows into the outer tubular member but not into the inner tubular member.

Abstract: A filter element may include a canister, a first cap coupled to a first end of the canister, and a second cap coupled to a second end of the canister. The filter element may also include an outer tubular member extending between the first cap and the second cap. The filter element may further include an inner tubular member at least partially inside the outer tubular member, and filter media configured to promote separation of a first fluid from a second fluid. The filter media may extend between the first cap and the second cap. The filter element may be configured such that fluid entering the filter element flows between the inner tubular member and the outer tubular member, and through the filter media. The filter element may be configured such that a portion of the fluid may flow from a first side of the second cap to a second side of the second cap, but not into the inner tubular member.

Abstract: A damper box includes a curved wall, an outlet, a side wall, and filter and a damper. The curved wall has an outside surface, an inside surface, and a separator sandwiched between an outside air inlet and a recirculated air inlet. The side wall is disposed between the recirculated air inlet and the outlet. The filter has a curvature matching the curved wall and covering the outside surface of the curved wall. The damper has an axis of rotation adjacent to and in alignment with the separator. The damper has a first face and a trailing edge. The first face is curved and configured to mate with a curved frame disposed about the outside air inlet. The trailing edge is configured to mate with the side wall. A ratio of outside air to recirculated air is modulated in response to the damper being rotated.

Abstract: A damper box includes a curved wall, an outlet, a side wall, and filter and a damper. The curved wall has an outside surface, an inside surface, and a separator sandwiched between an outside air inlet and a recirculated air inlet. The side wall is disposed between the recirculated air inlet and the outlet. The filter has a curvature matching the curved wall and covering the outside surface of the curved wall. The damper has an axis of rotation adjacent to and in alignment with the separator. The damper has a first face and a trailing edge. The first face is curved and configured to mate with a curved frame disposed about the outside air inlet. The trailing edge is configured to mate with the side wall. A ratio of outside air to recirculated air is modulated in response to the damper being rotated.

Abstract: A fuel water separator is provided. The fuel water separator includes a filter having a top end cap and a bottom end cap. A sensor is coupled to the top end cap of the filter. A probe is configured to be coupled to the sensor and to the bottom end cap. The probe is configured to be positioned outside the filter between the top end cap and the bottom end cap.

Abstract: An air filter assembly for use with a plenum having an internal passage with a non-linear configuration comprising is provided. The air filter assembly includes a support assembly including a neck portion that is insertable into the internal passage in the plenum and a mounting face. The air filter assembly includes an air filter with a filter frame supporting a filter media. The filter frame has an annular mounting flange extending around a perimeter of an inlet side of the filter which is configured to be releasably connectable to the mounting face of the support assembly. An outlet side of the filter includes a plurality of planar sections that extend at non-90° angles relative to each other and that are configured to be complementary to the internal passage of the plenum.

Abstract: A filter element may include filter media having an elongated hollow passage extending along a longitudinal axis and between a first end and a second end, with the filter media having an exterior surface. The filter element may also include first and second fins associated with and extending radially from the exterior surface of the filter media. The filter media may include a first filtration zone extending partially around the hollow passage and between the first fin and the second fin, with the first filtration zone being associated with a first portion of the filter media. The filter media may also include a second filtration zone extending partially around the hollow passage and between the first fin and the second fin, with the second filtration zone being associated with a second portion of the filter media.

Abstract: A filter element includes a center tube and a blank of a filter media. The center tube has a first end and a second end. The blank is folded into a plurality of triangles. Each triangle is disposed adjacent to another of the plurality of triangles to form a series of triangular pleats to form a pleated filter media. The pleated filter media is disposed about the center tube. A cross sectional area of the pleated filter media proximal to each of the first end and the second end is greater than a cross sectional area of the pleated filter media at a point between the first end and the second end.

Abstract: A system for detecting a pressure differential between an inlet and an outlet of a filter element may include a housing configured to be associated with a filter element coupled to a filter base of a filter assembly. The system may further include a first sensor configured to provide signals indicative of pressure associated with at least one of an inlet port and an outlet port of the filter element. The system may further include a controller configured to receive the signals from the first sensor, and determine a pressure differential between the inlet port and the outlet port of the filter element based on the signals. The system may be configured such that a flow path of fluid flowing between the inlet port and the outlet port does not include flowing through a portion of the filter base.

Abstract: An air filter assembly for use with a plenum having an internal passage with a non-linear configuration comprising is provided. The air filter assembly includes a support assembly including a neck portion that is insertable into the internal passage in the plenum and a mounting face. The air filter assembly includes an air filter with a filter frame supporting a filter media. The filter frame has an annular mounting flange extending around a perimeter of an inlet side of the filter which is configured to be releasably connectable to the mounting face of the support assembly. An outlet side of the filter includes a plurality of planar sections that extend at non-90° angles relative to each other and that are configured to be complementary to the internal passage of the plenum.

Abstract: A filter assembly is provided. The filter assembly includes a first component having a first groove. The filter assembly further includes a second component having a second groove. The first groove of the first component and the second groove of the second component define a channel therebetween. Furthermore, the filter assembly includes a cord member removably inserted in the channel to detachably couple the second component to the first component.

Abstract: A filter cartridge assembly includes a fitting with a lid and a throat. The lid includes a handle and spring. The handle is configured to receive torque and linear force and translate these forces to the lid. The spring has a first and second catch disposed opposite ends. The spring is configured to mate with and fully reside within a lid groove in response to the first catch being drawn towards the second catch. The spring is configured to partially extend annularly outwardly from the lid groove in response to the first catch and the second catch being allowed to return to a biased position. The throat receives the lid and a throat groove disposed about the throat is configured to receive the extended portion of the spring partially extending from the lid groove. The lid is captured in response to the spring mating with the throat groove.

Abstract: A filter element, assembly and method of filtering is disclosed. The filter element may comprise an outer filter having a top and a bottom, and an inner filter. The outer filter may define an interior space and a longitudinal axis. The interior space may extend from the top to the bottom of the outer filter along the longitudinal axis. The inner filter may be disposed inside the interior space. The inner filter may be offset along the longitudinal axis from the bottom of the outer filter. The offset may define a cavity disposed below the inner filter and adjacent to the bottom of the outer filter. The outer filter may be configured to guide fluid in a first direction and the inner filter may be configured to guide fluid in a second direction generally parallel to the longitudinal axis, the second direction different from the first direction.

Abstract: A filter element may include a tubular member including a partition at least partially defining first and second chambers. The tubular member may further include at least one outlet aperture and at least one inlet aperture configured to provide flow communication exiting from the first chamber and flow communication into the second chamber, respectively. The filter element may be configured such that fluid passing through the filter element from an inlet port to an outlet port passes through the first chamber, a filter medium, and the second chamber. The filter element may also include an end cap having a return aperture configured to provide flow communication between fluid exiting from the first chamber and fluid entering the inlet port, wherein a portion of fluid exiting from the first chamber is returned to the inlet port for recirculation through the first chamber.

Abstract: A filter element is disclosed. The filter element includes an angled first end cap and a second end cap, each having angled surfaces. The first and second end caps each include an inner sidewall and an outer sidewall projecting longitudinally from the respective angled surfaces. The outer sidewall is axially spaced apart from the inner sidewall. Further, the inner sidewall defines a centrally disposed through-hole on the respective first and second end caps. The filter element also includes a filter media disposed between the first and second end caps. A first and a second locking mechanism are respectively provided on the first and second end caps. Further, the second locking mechanism of the filter element is configured to abut completely with the first locking mechanism of another filter element.

Abstract: A filter element may include a tubular member including an end portion at least partially defining an inlet port configured to provide flow communication to a filter medium of the filter element, and at least partially defining an outlet port configured to provide flow communication from the filter medium. The filter element may further include a filter medium associated with the tubular element, and an end cap associated with the end portion of the tubular member and the filter medium. The end cap may include a plate transverse to the longitudinal axis of the tubular member, and a sealing wall coupled to the plate and extending transverse to the plate. The sealing wall may include a seal portion configured to be compressed between a filter canister and a portion of a filter base to provide a seal between the filter canister and the portion of the filter base.

Abstract: A filter base system may include a mounting bracket configured to be coupled to a machine, and an extension coupled to the mounting bracket. The filter base system may further include a filter assembly coupler associated with the extension. The filter assembly coupler may include an inlet passage configured to provide flow communication from the machine to the filter element, and an outlet passage configured to provide flow communication from the filter element to the machine. The filter assembly coupler may also include a receiver including a receiver passage extending transverse to longitudinal axes of the inlet and outlet passages. The filter assembly coupler may further include a base plug including a base plug body including a plug surface configured to cooperate with the filter element, such that orientation of the filter element with respect to the filter assembly coupler depends on orientation of the base plug in the receiver.

Abstract: A filter element may include a tubular member, and tubular member may include a partition at least partially defining first and second chambers. The tubular member may further include an end portion at least partially defining an inlet port configured to provide flow communication into the first chamber, and at least partially defining an outlet port configured to provide flow communication from the second chamber. The tubular member may further include a cover portion at the end portion of the tubular member, with the cover portion extending from the partition. The cover portion may be configured to at least partially cover a longitudinal end of the second chamber. The filter element may further include a filter medium associated with at least one outlet aperture and the at least one inlet aperture of the tubular member.