A filter is provided having more than one density of media, or more than one type of media. Three or four types of media may be arranged. Some or all of the media may be of different density material from each other. A spacer grid separates at least two of the media apart. One or more flanges on the
A filter is provided having more than one density of media, or more than one type of media. Three or four types of media may be arranged. Some or all of the media may be of different density material from each other. A spacer grid separates at least two of the media apart. One or more flanges on the spacer each respectively space apart two of the media from each other at a location. The one or more flanges provide a respective flow path through the flange.
대표청구항▼
1. A fluid filter, comprising: a housing having an inlet and an outlet;a support grid disposed within the housing;first, second, and third mounting flanges disposed within the housing; andfirst, second, and third media disposed within the housing, the first media comprising a first aperture there th
1. A fluid filter, comprising: a housing having an inlet and an outlet;a support grid disposed within the housing;first, second, and third mounting flanges disposed within the housing; andfirst, second, and third media disposed within the housing, the first media comprising a first aperture there through, the second media comprising a second aperture there through, and the third media comprising a third aperture there through;wherein:said first, second, and third mounting flanges are unitary with or adjacent to the support grid;the first mounting flange spaces the first and second media apart;the second mounting flange spaces the first and third media apart;the third mounting flange spaces the second and third media apart;the first and third flanges form a first flow channel from the inlet to a fluid space between the second media and the third media; andthe second and third flanges form a second flow channel from a fluid space between the first media and the second media to the outlet. 2. The fluid filter of claim 1, wherein the first, second, and third media each comprise different filter materials from each other. 3. The fluid filter of claim 1, wherein the second media is of a finer media material than the material of the first media. 4. The fluid filter of claim 3, wherein the third media is of a finer media material than the material of the second media. 5. The fluid filter of claim 1, wherein the first, second, and third flanges are adjacent to the support grid. 6. The fluid filter of claim 1, wherein the first, second, and third flanges are unitary with the support grid. 7. The fluid filter of claim 1, further comprising support ribs that are unitary with the support grid. 8. The fluid filter of claim 3, wherein the second media is disposed upstream of the first media. 9. The fluid filter of claim 1, wherein the housing comprises an upper cover having the outlet, and a base cover having the inlet. 10. The fluid filter of claim 1, further comprising an oil pan, wherein the housing comprises an upper cover and a portion of the oil pan. 11. The fluid filter of claim 10, wherein the oil pan has a mounting flange defining a portion of the housing, and having an inlet port in the mounting flange. 12. The fluid filter of claim 9, further comprising a fourth mounting flange unitary with or adjacent to the support grid, and a fourth media having a fourth aperture there through, wherein the fourth mounting flange flows a flow channel between the fourth media and the base cover to a region between the first and second media. 13. The fluid filter of claim 12, wherein the fourth mounting flange is unitary with the support grid. 14. The fluid filter of claim 1, wherein at least one of the first, second, and third media are of different filter density from at least one other of the first, second, and third media. 15. The fluid filter of claim 1, wherein at least one of the first, second, and third media are of different filter material type from at least one other of the first, second, and third media. 16. The fluid filter of claim 1, wherein at least two of the first, second, and third media are at least partially of the same material type as each other. 17. The fluid filter of claim 1, wherein at least two of the first, second, and third media are of the same filtration density. 18. The fluid filter of claim 1, wherein all of the first, second, and third media are of different filtration densities from each other.
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이 특허에 인용된 특허 (3)
Chiba Masatoshi,JPX, Filter and filter medium unit for use therein.
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