Fuel filter for the removal of a soap contaminant from diesel fuel
AssigneeCummins Filtration IP, Inc.
InventorsCorey W. Trobaugh, Shawn D. Whitacre, Cliffton J. Burbrink, Barry M. Verdegan, Mark T. Wieczorek
Life of this patent
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Abstract
This disclosure describes a filtration system and method for removing soap from diesel fuel. The removal involves passing fuel through the filtration system. By removing soap, injector sticking and plugging can be reduced and for fuel already contaminated with soap, lubricity and/or corrosion inhibition functionality resulting from the conversion of carboxylic acid additives can be restored to metal carboxylates.
Claims23
A filter element, comprising
- a filtration media configured to remove at least one metal carboxylate soap that is present in a fluid, wherein the filter media has a mean flow pore size of less than 5 microns;
- and
- an ion exchange media configured to remove a metal ion from the fluid.
A filtration system for filtering a fluid, comprising:
- an ion exchange media that is configured to remove one or more dissolved metal ions from the fluid;
- a filter media that is configured to remove at least one metal carboxylate soap that is present in the fluid, wherein the filter media has a mean flow pore size of less than 5 microns;
- and
- one or more housings that contain the ion exchange media and the filter media.
A method for removing undesirable soap in diesel fuel, comprising:
- removing soluble soap contained in the diesel fuel by ion exchange;
- and
- removing insoluble metal carboxylate soap contained in the diesel fuel by filtration using a filter media having a mean flow pore size of less than 5 microns.
A filter element, comprising a filter media configured to remove at least one metal carboxylate soap from diesel fuel, wherein the filter media has a mean flow pore size of less than 5 microns, an ion exchange media configured to remove a metal ion from diesel fuel, and an ion exchange media retainer, wherein each of the filter media, the ion exchange media the ion exchange media circumscribes a central cavity.
Dependencies are inferred from the claim text.