Filter for hydraulic fluids for hydraulic circuits

A filter for hydraulic fluids for hydraulic circuits comprising a closed filter body and at least one filtering cartridge, wherein:

• said filter body comprises a tubular body delimited by a side wall and extending longitudinally along a predefined axial direction from a first head end to a second distal head end;
• said filter body comprises at least one hydraulic fluid inlet in communication with a supply chamber positioned at said first head end;
• said filter body comprises at least one hydraulic fluid outlet positioned in a substantially median portion of said side wall of the tubular body;
• a compartment is identified in said tubular body of said filter body, in fluid communication with said supply chamber, intended to removably house said filtering cartridge;
• said filtering cartridge comprises a tubular body extending longitudinally along said predefined axial direction from a first head end, connected in fluid-tight communication with said supply chamber, to a second head end closed by a bottom;
• said tubular body of said filtering cartridge comprises a continuous tubular layer of filtering material suitable for being crossed by a pressurized hydraulic fluid for performing a filtering action on said pressurized hydraulic fluid;
• said filtering cartridge is housed and supported removably in said compartment of said tubular body, and
• said continuous tubular layer of filtering material subdivides said housing compartment:
• into a first chamber internal to said continuous tubular layer of filtering material and in fluid-tight communication with said supply chamber and
• into a remaining external portion comprised between said tubular layer of filtering material and said side wall of the tubular body,
• said continuous tubular layer of filtering material of said filtering cartridge being configured and positioned in said filter body to be interposed in a hydraulic fluid path between said inlet opening and said at least one outlet opening and to be crossed by the hydraulic fluid and to carry out the filtering action thereon, causing the filtration of hydraulic fluid entering said filter body through said at least one inlet opening and exiting from said filter body through said at least one outlet opening and
• said at least one hydraulic fluid outlet comprises a plurality of through openings obtained in said side wall of the tubular body of said filter body, said plurality of through openings:
• being distributed over a predefined longitudinal section of said side wall and
• having larger dimensions in proximity to said second distal head end of said filter body and smaller dimensions in proximity to said first head end of said filter body.