Filter assembly for a dishwasher appliance

A dishwasher appliance, comprising:

• a tub defining a wash chamber;
• a sump;
• a circulation pump for circulating a wash fluid in the sump to the wash chamber;
• and
• a filter assembly disposed within the sump and in flow communication with the circulation pump, the filter assembly defining an axial direction, a radial direction, and a circumferential direction, the filter assembly comprising:
• filter member including a filter panel and defining a discharge opening;
• a circumferential discharge chamber disposed radially outward of the filter member, the discharge chamber in fluid communication with the filter member through the discharge opening;
• and
• a discharge blade attached to a shaft that extends through the filter member and is rotatable about the axial direction, the discharge blade positioned adjacent to the filter panel, the discharge blade defining a lateral direction, a transverse direction and a vertical direction, the discharge blade comprising:
• a blade hub defining an aperture, the shaft extending through the aperture such that the discharge blade is attached to the shaft and can rotate about the axial direction;
• and
• a pair of opposing blades extending outward from the blade hub to a blade tip along the radial direction, at least one of the opposing blades comprising:
• a leading edge defined between the blade hub and the blade tip along the lateral direction;
• a trailing edge spaced apart from the leading edge along both the transverse and vertical direction, the trailing edge defining a curve that extends between the blade hub and the blade tip along the lateral direction;
• and
• a top surface spaced apart from a bottom surface along the vertical direction, the top surface defining a slope between the leading edge and the trailing edge along the transverse direction.