[특허]Liquid filtration media, filter elements and methods

Liquid filtration media, filter elements and methods 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-039/20 B01D-039/18
출원번호	US-0717854 (2015-05-20)
등록번호	US-10226723 (2019-03-12)
발명자 / 주소	Jones, Derek O. Dema, Keh B. Larsen, Stephen M. Madsen, Mike J. Dallas, Andrew J. Elsayed, Yehya A. Yang, Chuanfang
출원인 / 주소	Donaldson Company, Inc.
대리인 / 주소	Pauly, DeVries Smith & Deffner LLC
인용정보	피인용 횟수 : 0 인용 특허 : 55

초록 ▼

A filter and filter media configured and arranged for placement in a fuel stream is disclosed. The filter and filter media allow for filtering of liquid fuels, such as diesel fuel. In certain embodiments the filter media includes a media fiber (such as glass) and a binder fiber (such as bicomponent) that combine to create a media structure having low solidity and relatively low compressibility, and which contain a pore structure that avoids premature fouling of the filter by fuel degradation products.

대표청구항 ▼

1. A filter for filtering liquid fuels, the filter comprising: filter media configured and arranged for placement in a liquid fuel stream, the filter media comprising an upstream media layer and a downstream media layer, the upstream media layer comprising:a) media fiber in the upstream media layer; andb) binder fiber in the upstream media layer having an average diameter greater than the media fiber in the upstream media layer; wherein: the media fiber in the upstream media layer having an average diameter of less than 15 microns and the binder fiber in the upstream media layer having an average diameter greater than the media fiber;the downstream media layer has a mean pore size greater than the upstream media layer;and the upstream media layer preferentially loads fuel degradation products at a level of capture of at least 50 percent greater than the downstream media layer; andwherein the mode pore size of the upstream media layer is at least 40 percent greater than the mode pore size of the downstream media layer. 2. The filter for filtering liquid fuels of claim 1, wherein the media fiber in the upstream media layer comprises glass fiber. 3. The filter for filtering liquid fuels of claim 1, wherein the binder fiber in the upstream media layer comprises bicomponent fiber. 4. The filter for filtering liquid fuels of claim 1, wherein the media fiber in the upstream media layer has an average diameter of less than 5 microns. 5. The filter for filtering liquid fuels of claim 1, wherein the binder fiber in the upstream media layer has an average diameter greater than 5 microns. 6. The filter for filtering liquids of claim 1, wherein the filter media has a solidity of less than 12 percent. 7. The filter for filtering liquids of claim 1, wherein the filter media has a solidity of less than 10 percent. 8. The filter for filtering liquid fuels of claim 1, wherein the upstream media layer is free of resin. 9. A filter for filtering liquid fuels, the filter comprising: filter media configured and arranged for placement in a liquid fuel stream, the filter media comprising an upstream media layer and a downstream media layer, the upstream media layer comprising:a) media fiber; andb) binder fiber having an average diameter greater than the media fiber;wherein the upstream media layer has a solidity of less than 12 percent, and a compressibility of less than 40 percent at a pressure of 1.24 kg/cm2;the media fiber of the upstream media layer having an average diameter of less than 15 microns and the binder fiber of the upstream media layer having an average diameter greater than the media fiber of the downstream media layer;and the downstream media layer has a mean pore size greater than the upstream media layer; andthe upstream media layer preferentially loads fuel degradation products over the downstream media layer; andwherein the mode pore size of the upstream media layer is at least 40 percent greater than the mode pore size of the downstream media layer. 10. The filter for filtering liquid fuels of claim 9, wherein the media fiber of the upstream media layer comprises glass fiber. 11. The filter for filtering liquid fuels of claim 9, wherein the binder fiber of the upstream media layer comprises bicomponent fiber. 12. The filter for filtering liquid fuels of claim 9, wherein the media fiber of the upstream media layer has an average diameter of less than 5 microns. 13. The filter for filtering liquids of claim 9, wherein the filter media has a solidity of less than 10 percent. 14. A filter for filtering liquid fuels, the filter comprising: filter media configured and arranged for placement in a liquid fuel stream, the filter media comprising an upstream media layer and a downstream media layer, the upstream media layer comprising:a) media fiber, andb) binder fiber having an average diameter greater than the media fiber; anda second filter media, the second filter media comprising cellulose;wherein the upstream media layer is arranged upstream of the downstream media layer in the flow of liquid fuels during filtration;the media fiber of the upstream media layer having an average diameter of less than 15 microns and the binder fiber of the upstream media layer having an average diameter greater than the media fiber;the downstream media layer has a mean pore size greater than the upstream media layer;and the upstream media layer preferentially loads fuel degradation products over the downstream media layer; andwherein the mode pore size of the upstream media layer is at least 40 percent greater than the mode pore size of the downstream media layer. 15. The filter for filtering liquid fuels of claim 14, wherein the media fiber in of the upstream media layer comprises glass fiber. 16. The filter for filtering liquid fuels of claim 14, wherein the binder fiber in of the upstream media layer comprises bicomponent fiber. 17. The filter for filtering liquids of claim 14, wherein media fiber of the upstream media layer has an average diameter greater than the average diameter of media fiber of the downstream media layer. 18. The filter for filtering liquid fuels of claim 14, wherein the solidity of the upstream media layer is less than 10 percent.

이 특허에 인용된 특허 (55)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Liquid filtration media, filter elements and methods 원문보기

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