Disk filter

A filter comprising structure for automatic and non-automatic filter systems designed to enable extremely fine filtering down to about 50 microns or less while providing enhanced filtering capacity, said structure including:

• a housing including an inlet coupled to a fluid inlet and an outlet coupled to a fluid outlet;
• and
• a filter assembly disposed inside the housing and arranged to intercept the flow of fluid from the fluid inlet to the fluid outlet, said filter assembly comprising a stack of filter screen elements.
• each filter screen element comprising a generally annular screen and spacer means associated with the screen and defining at least one inlet chamber adjacent each annular screen at an upstream side thereof for collection of contaminants and at least one outlet passage adjacent each annular screen at a downstream side thereof for permitting drainage of filtered fluid,
• said filter assembly defining a multiplicity of inlet contaminant collection chambers adjacent a multiplicity of annular screens,
• wherein said annular screens are arranged to lie at a slant with respect to the plane which is perpendicular to the longitudinal axis of the filter assembly, said slant arrangement presenting an increased surface area of said annular screens to said inlet fluid for enhancing the filter capacity.