초록 ▼

A filtration device is provided that includes a filter component and an additive component. The filter component includes concentrically arranged filtering elements disposed in a filter-in-filter configuration. The additive component includes at least one additive material that is introduced into a

A filtration device is provided that includes a filter component and an additive component. The filter component includes concentrically arranged filtering elements disposed in a filter-in-filter configuration. The additive component includes at least one additive material that is introduced into a working fluid to be filtered. The filter component and additive component provide an assembly for a filtration system that would filter a variety of working fluids. The filter component and additive component provides an assembly that can filter fluids more efficiently. As a result, fluids may enjoy, for example, extended drainage intervals and thereby reduce component wear.

대표청구항 ▼

1. An oil filtration device comprising: a housing having a closed end, a fluid inlet and exiting end, and defining an interior space;a nut plate connected to the housing at the fluid inlet and exiting end, the nut plate defining an inlet for oil to enter the housing and an outlet for oil to exit the

1. An oil filtration device comprising: a housing having a closed end, a fluid inlet and exiting end, and defining an interior space;a nut plate connected to the housing at the fluid inlet and exiting end, the nut plate defining an inlet for oil to enter the housing and an outlet for oil to exit the housing;a filter component contained entirely within the interior space of the housing between the closed end and the nut plate, the filter component arranged as a plurality of concentric filtering elements including an outer filtering element and an inner filtering element, a filter space being defined between the outer filtering element and the inner filtering element, each filtering element having a filter media configured to allow oil to flow through the filter media while removing contaminants from the oil, the inner filtering element defines a center space disposed along a central axis of the oil filtration device extending from a first end of the filter component to a second end of the filter component;a closed endplate connected to the second end of the filter component;an additive component contained entirely within the interior space of the housing and physically disposed between the filter component and the nut plate, the additive component includes a doughnut-shaped release vessel that is disposed about the central axis, the doughnut-shaped release vessel defining a central passage through which oil flows to the nut plate outlet;the doughnut-shaped release vessel includes a first end engaged with the first end of the filter component and a second end engaged with a gasket that is connected to the nut plate to seal between the nut plate inlet and the nut plate outlet;the doughnut-shaped release vessel includes an interior space containing an additive material in liquid form for release into the oil, the additive material is configured to treat or enhance the oil; andthe doughnut-shaped release vessel includes an additive outlet opening that communicates the interior space thereof with the filter space, and the outlet opening opens into the filter space, the additive outlet opening is positioned to release the additive material into the filter space and the inner and outer filter elements, whereby the additive material is not released into the oil until the oil has entered the outer filtering element. 2. The oil filtration device of claim 1, wherein the doughnut-shaped release vessel has an outer diameter that is generally equal to an outer diameter of the filter component. 3. The oil filtration device of claim 1, wherein the vessel is configured to release the at least one additive material into the oil via a pressure gradient release mechanism. 4. The oil filtration device of claim 1, wherein the filter media is multi-layer media. 5. The oil filtration device of claim 1, further comprising a fluid soluble seal disposed over the additive outlet opening, the fluid soluble seal is soluble in the oil. 6. The oil filtration device of claim 1, wherein the additive material is released into the oil in the filter space between the outer and inner filtering elements. 7. The oil filtration device of claim 1, wherein the additive material is released into the oil prior to the oil entering the center space defined by the inner filtering element. 8. The oil filtration device of claim 1, wherein the additive material is released into the oil in the center space defined by the inner filtering element. 9. The oil filtration device of claim 1, wherein the additive outlet opening faces the filter space. 10. The oil filtration device of claim 1, wherein the additive outlet opening overlaps an axial end of the inner filter element and an axial end of the outer filter element. 11. An oil filtration device comprising: a housing having a closed end and a second end opposite the closed end, and defining an interior space;a nut plate connected to the housing at the second end, the nut plate defining an inlet for oil to enter the housing and an outlet for oil to exit the housing;a filter component contained entirely within the interior space of the housing between the closed end and the nut plate, the filter component arranged as a plurality of concentric filtering elements including an outer filtering element and an inner filtering element, a filter space being defined between the outer filtering element and the inner filtering element, each filtering element having a cellulose filter media configured to allow oil to flow through the cellulose filter media while removing contaminants from the oil, the inner filtering element defines a center space disposed along a central axis of the oil filtration device extending from a first end of the filter component to a second end of the filter component;an additive component contained entirely within the interior space of the housing and physically disposed between the filter component and the nut plate, the additive component includes a ring-shaped vessel that is disposed about the central axis, the ring-shaped release vessel defining a central passage through which oil flows to the nut plate outlet;the ring-shaped release vessel includes a first end engaged with the first end of the filter component and a second end engaged with a gasket that is connected to the nut plate to seal between the nut plate inlet and the nut plate outlet;the ring-shaped release vessel includes an interior space containing an additive material in liquid form for release into the oil, the additive material includes a detergent material and an antioxidant material; andthe ring-shaped release vessel includes an additive outlet opening that communicates the interior space thereof with the filter space, and the outlet opening opens into the filter space, the additive outlet opening is positioned to release the additive material into the filter space and the inner and outer filter elements, whereby the additive material is not released into the oil until the oil has entered the outer filtering element. 12. The oil filtration device of claim 11, wherein the ring-shaped release vessel has an outer diameter that is generally equal to an outer diameter of the filter component. 13. The oil filtration device of claim 11, wherein the vessel is configured to release the additive material into the oil via a pressure gradient release mechanism. 14. The oil filtration device of claim 11, wherein the cellulose filter media is multi-layer media. 15. The oil filtration device of claim 11, further comprising a fluid soluble seal disposed over the additive outlet opening, the fluid soluble seal is soluble in the oil. 16. The oil filtration device of claim 11, wherein the additive material is released into the oil in the filter space between the outer and inner filtering elements. 17. The oil filtration device of claim 11, wherein the additive material is released into the oil prior to the oil entering the center space defined by the inner filtering element. 18. The oil filtration device of claim 11, wherein the additive material is released into the oil in the center space defined by the inner filtering element. 19. The oil filtration device of claim 11, wherein the additive outlet opening faces the filter space. 20. The oil filtration device of claim 11, wherein the additive outlet opening overlaps an axial end of the inner filter element and an axial end of the outer filter element.