MAGNETIC FILTER SYSTEMS AND METHODS

摘要

Magnetic filter systems may be constructed with various arrangements of permanent magnets, including but not limited to checkerboard and spiral arrangements. When coupled to a conventional filter, exemplary magnetic filter systems capture ferrous particulates against the outer wall of the conventional filter by magnetic attraction, thereby reducing the number of particulates in a fluid stream and improving the quality of the filtered fluid.

主权项

1. A magnetic filter assembly, comprising:
a structural frame having a mounting cavity; a flux return plate disposed within the mounting cavity; and a plurality of permanent magnets mounted against the flux return plate within the mounting cavity and forming the shape of a partial cylinder, the plurality of permanent magnets oriented such that a magnetic axis of each permanent magnet is perpendicular to the flux return plate, and arranged in an array such that each magnet in the array is adjacent another magnet of opposite polarity, wherein each magnet of the plurality of permanent magnets is characterized by a magnet length dimensioned along the longitudinal axis of the partial cylinder, a magnet inner width dimensioned along the circular arc of the partial cylinder, and a magnet height dimensioned parallel to the magnetic axis of each permanent magnet, wherein the ratio of the magnet inner width to the radius of the circular arc is between 0.3 and 0.5, and wherein the ratio of the magnet height to the magnet inner width is between 0.3 and 0.6.