SELF-CLEANING FILTER APPARATUS AND SPRAYER SYSTEM WITH SUCH

A self-cleaning filter apparatus (120) for a sprayer system (102) is disclosed. The self-cleaning filter apparatus (120) comprising: a filter unit (250) comprising: a screen device (320) defining a first screen device end and a second screen device end; and a filter unit housing (260) that houses the screen device (320) and includes a fluid inlet (268) and a fluid outlet (270) such that a fluid enters the filter unit (250) through the fluid inlet (268), is directed through the screen device (320), and exits the filter unit (250) through the fluid outlet (270); and a plunger unit (200) comprising: a rod end housing (150) coupled to the filter unit housing (260); a plunger rod (180) with a first plunger rod end (152) positioned within the rod end housing (150) and a second plunger rod end (154) within the filter unit housing (260); and a plunger assembly (200) secured to the second plunger rod end (154), wherein, during a first filter cleaning event segment of a filter cleaning event, the plunger rod (180) is configured to translate within the screen device (320) between a nominal position in which the plunger assembly (200) is proximate the first screen device end and a cleaning position in which the plunger assembly (200) is proximate the second screen device end, wherein, during a second filter cleaning event segment of the filter cleaning event, the plunger rod (180) is further configured to translate from the cleaning position to the nominal position, and wherein the plunger rod (180) is configured to dislodge, at least in part, debris from within the screen device (320) during at least the first filter cleaning event segment. Further, a sprayer system (102) with such self-cleaning filter apparatus (120) is disclosed.