High-performance fabric for water/diesel separating filters
AssigneeSaati S.P.A.
InventorsPaolo Canonico, Carmine Lucignano, Roberto Momentè
Life of this patent
Estimating the term…
Abstract
A fabric for use in filters separating water from a water/diesel emulsion, and a method of using such a fabric, where the fabric has a rectangular mesh, the sides of which are formed by respective threads. In comparison with prior art fabrics for water/diesel filters, the fabric of the invention offers the advantage of having a higher separation efficiency, thus allowing separation of diesel with a lower residual water content downstream of the filter.
Claims20
A water/diesel separating filter configured and arranged to separate water from a diesel flow, comprising a water/diesel emulsion, within an automotive diesel fuel filtering system, the filter comprising:
- a body;
- and
- a filtering fabric housed within the body,
- wherein said filtering fabric comprises:
- rectangular meshes, having sides that are formed by respective threads, wherein each of said rectangular meshes is comprised of a pair of shorter sides and a pair of longer sides,
- wherein said rectangular meshes are configured and arranged to stop water drops of the water/diesel emulsion, while allowing diesel of the water/diesel emulsion to pass through portions of said rectangular meshes left free by said water drops,
- wherein said rectangular meshes have a size ratio between the shorter side and the longer side that is greater than or equal to 0.38 and less than 1, and
- wherein when said meshes receive, from the diesel flow to be filtered, a water drop with a diameter greater than the length of the shorter side of said meshes, said water drop is retained on the meshes, while portions of said rectangular openings are formed for allowing the diesel flow to pass therethrough.
A water/diesel separating filter configured and arranged to separate water from a diesel flow, comprising a water/diesel emulsion, within an automotive diesel fuel filtering system, the filter comprising:
- a body;
- and
- a filtering fabric housed within the body,
- wherein said filtering fabric comprises:
- rectangular meshes, having sides that are formed by respective threads, wherein each of said rectangular meshes is comprised of a pair of shorter sides and a pair of longer sides,
- wherein said rectangular meshes are configured and arranged to stop water drops of the water/diesel emulsion, while allowing diesel of the water/diesel emulsion to pass through portions of said rectangular meshes left free by said water drops,
- wherein said rectangular meshes have a size ratio between the shorter side and the longer side that is greater than or equal to 0.5 and less than 0.8,
- wherein a range of the shorter side of the mesh is from 5 to 150 μm, and
- wherein when said meshes receive, from the diesel flow to be filtered, a water drop with a diameter greater than the length of the shorter side of said meshes, said water drop is retained on the meshes, while portions of said rectangular openings are formed for allowing the diesel flow to pass therethrough.
A method of using a fabric in a filter for separating water from a diesel flow, comprising a water/diesel emulsion, in an automotive diesel fuel filtering system, wherein said fabric has rectangular meshes having sides that are formed by respective threads, wherein each of said rectangular meshes is comprised of a pair of shorter sides and a pair of longer sides, the method comprising:
- using said rectangular meshes to stop water drops of the water/diesel emulsion, while allowing diesel of the water/diesel emulsion to pass through portions of said rectangular meshes left free by said water drops, and
- wherein said rectangular meshes have a size ratio between the shorter side and the longer side that is greater than or equal to 0.38 and less than 1, and
- wherein when said meshes receive, from the diesel flow to be filtered, a water drop with a diameter greater than the length of the shorter side of said meshes, said water drop is retained on the meshes, while portions of said rectangular openings are formed for allowing the diesel flow to pass therethrough.
Dependencies are inferred from the claim text.