FILTRATION SYSTEM WITH ADDITIVE
A system includes a housing. The system includes a filter element disposed in the housing. The filter element is configured to filter an operating fluid. The system includes an additive disposed in the housing. The additive is configured as a crystalline solid at a temperature below 60° C. and configured to disperse into an operating fluid at a temperature in a range of 60° C. to 160° C. The additive can improve the oxidative stability of the operating fluid.
1 . A system, comprising:
a housing; and
an additive disposed in the housing, the additive configured as a crystalline solid at a temperature below 60° C. and configured to melt and disperse into the operating fluid at a temperature in a range of 60° C. to 160°C.
2 . The system of claim 1 , further comprising a filter element disposed within the housing.
3 . The system of claim 2 , wherein the additive is coupled with the filter element.
4 . The system of claim 2 , wherein:
the filter element comprises an endplate; and
the additive is coupled with endplate of the filter element.
5 . The system of claim 2 , wherein the housing comprises a centrifuge housing.
6 . The system of claim 2 , wherein:
the filter element defines a hollow interior; and
the additive is disposed within the hollow interior of the filter element.
7 . The system of claim 2 , further comprising:
a tube disposed in the filter element,
wherein the additive is disposed in the tube.
8 . The system of claim 2 , wherein:
the filter element comprises an influent side and an effluent side; and
the additive is disposed on at least one of the influent side of the filter or the effluent side of the filter element.
9 . The system of claim 1 , wherein the additive comprises docusate sodium.
10 . The system of claim 1 , wherein the additive comprises sodium bis(2-ethylhexyl) sulfosuccinate.
11 . The system of claim 1 , wherein the operating fluid comprises at least one of lube oil, hydraulic fluid, gear oil, fuel, and coolant.
12 . The system of claim 1 , wherein the additive comprises at least one of an aminic antioxidant, a phenolic antioxidant, an anti-wear additive, a pour point depressant, a viscosity modifier, a friction modifier, a dispersant, an over-based detergent, a weak based additive, an anti-foam additive, a corrosion inhibitor additive, or a surfactant.
13 . The system of claim 1 , wherein the additive is ashless.
14 . The system of claim 1 , wherein the additive is configured to react with hydrocarbon free radicals in the operating fluid.
15 . The system of claim 1 , wherein the additive comprises a powder.
16 . The system of claim 1 , wherein the additive is disposed in a fibrous matrix.
17 . A filter element comprising:
a filter media;
an additive coupled with the filter media, the additive configured as a crystalline solid at a temperature below 60° C. and configured to melt and disperse into an operating fluid at a temperature in a range of 60° C. to 160° C.
18 . The filter element of claim 17 , wherein:
the filter element comprises a hollow interior; and
the additive is disposed within the hollow interior of the filter element.
19 . The filter element of claim 17 , further comprising:
a tube disposed in the filter element,
wherein the additive is disposed in the tube.
20 . The filter element of claim 17 , wherein:
the filter element comprises an endplate; and
the additive is coupled with the endplate of the filter element.
21 . The filter element of claim 17 , wherein:
the filter element comprises an influent side and an effluent side; and
the additive is disposed on at least one of the influent side of the filter element or the effluent side of the filter element.
22 . The filter element of claim 17 , wherein the additive is configured to react with hydrocarbon free radicals in the operating fluid.
23 . The filter element of claim 17 , wherein the operating fluid comprises at least one of lube oil, hydraulic fluid, gear oil, fuel, and coolant.