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US 6,811,588 B2Granted
High capacity hybrid multi-layer automotive air filter
AssigneeAdvanced Flow Engineering, Inc.
InventorShahriar Nick Niakin
Life of this patent
Estimating the term…
Abstract
An automotive air filter including natural fiber filter media region, having piteous, absorbent, wickable natural fibers, a synthetic fiber filter media region including, absorbent spunbond polyester filters. The natural fiber region receives an influent fluid stream containing particles, trapping some particles. The manufactured fiber region removes residual particles, producing a filtered effluent stream. The fluid stream passes unimpaired through the fiber pores. Two structural mesh layers sandwich natural and manufactured fiber regions. Oil is disposed in the oleophilic cotton mesh. Fiber regions have layers disposed in gradient density arrangement.
Claims21
A fluid filter media, comprising:
- a. a natural fiber filter media region receiving an influent fluid stream containing particles, the natural fiber filter media having pores therethrough and being formed from a pileous, absorbent, and wickable natural fiber, the natural fiber filter media region trapping therein a first portion of the particles in the influent fluid stream while the influent fluid stream passes substantially unimpaired through the pores, and creating a filtered fluid stream having therein a second portion of the particles thereby;
- and
- b. a manufactured fiber filter media region in proximate contact with, and in fluid communication with, the natural fiber filter media region and receiving the filtered fluid stream therefrom, the manufactured fiber filter media region having pores therethrough and being formed from a pre-selected pileous and absorbent manufactured fiber, the manufactured fiber filter media region trapping therein a substantial amount of the particles of the second portion in the filtered fluid stream while the filtered fluid stream passes substantially unimpaired through the pores, and releasing a filtered effluent fluid stream thereby.
A fluid filter comprising:
- a. a natural fiber filter media region receiving an influent fluid stream containing particles, the natural fiber filter media having pores therethrough and being formed from a pileous, absorbent, and wickable cotton mesh, the natural fiber filter media region trapping therein a first portion of the particles in the influent fluid stream while the influent fluid stream passes substantially unimpaired through the pores, and creating a filtered fluid stream having therein a second portion of the particles thereby;
- b. a manufactured fiber filter media region in proximate contact with, and in fluid communication with, the natural fiber filter media region and receiving the filtered fluid stream therefrom, the manufactured fiber filter media region having pares therethrough and being formed from a pre-selected pileous and absorbent spunbond polyester fiber, the manufactured fiber filter media region trapping therein a substantial amount of the particles of the second portion in the filtered fluid stream while the filtered fluid stream passes substantially unimpaired through the pores, and releasing a filtered effluent fluid stream thereby;
- and
- c. two structural mesh layers with the natural fiber filter media region and the manufactured fiber filter media region being interposed in a supported relationship therebetween;
- wherein the cotton mesh is oleophilic and further comprising an efficacious amount of oil disposed in the natural fiber filter media region, the oil wetting the cotton mesh, thereby increasing particle trapping by natural fiber filter media region.
2 more elements
An air filter for an internal combustion engine, comprising:
- a. a natural fiber filter media region receiving air stream containing particles, the natural fiber filter media having pores therethrough and being formed from a pileous, absorbent, and wickable cotton mesh layers, the natural fiber filter media region trapping therein a first portion of the particles in the influent air stream while the influent air stream passes substantially unimpaired through the pores, and creating a filtered air stream having therein a second portion of the particles thereby;
- b. a manufactured fiber filter media region in proximate contact with, and in fluid communication with, the natural fiber filter media region and receiving the filtered air stream therefrom, the manufactured fiber filter media region having pores therethrough and being formed from a pre-selected pileous and absorbent spunbond polyester fiber layers, the manufactured fiber filter media region trapping therein a substantial amount of the particles of the second portion in the filtered air stream while the filtered air stream passes substantially unimpaired through the pores, and releasing a filtered effluent air stream to the internal combustion engine thereby;
- and
- c. two structural mesh layers with the natural fiber filter media region and the manufactured fiber filter media region being interposed in a supported relationship therebetween;
- wherein the cotton mesh layers are oleophilic and further comprising an efficacious amount of oil disposed in the natural fiber filter media region, the oil wetting the cotton mesh layers, thereby increasing particle trapping by natural fiber filter media region.
2 more elements
Dependencies are inferred from the claim text.