Bypass filter method and device

A bypass filter for filtering oil and/or fuel comprising:

• a body to encase internal parts of the bypass filter, the body having an inlet for allowing fluid into the filter;
• the internal parts of the bypass filter including
• at least one screen for filtering particles from the fluid,
• a cellulose element for filtering moisture from the fluid, and
• a relief channel for fluid to bypass the cellulose element and exit the filter;
• the body further having an outlet for allowing fluid out of the bypass filter;
• wherein the bypass filter further comprises a restriction orifice as an internal part, the restriction orifice being positioned between the at least one screen and the cellulose element, the restriction orifice only allowing the passage of a portion of the fluid that has passed through the at least one screen to the cellulose element, thereby restricting the volume of fluid to be filtered, with the remainder of the fluid entering the relief channel;
• and
• wherein the at least one screen is disposed between the inlet and the restriction orifice, for filtering particles from the fluid entering the relief channel and the restriction orifice.