Air filter medium combining two mechanisms of action
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-046/00
B01D-039/14
B01D-039/16
B29C-047/00
출원번호
US-0988554
(2011-11-21)
등록번호
US-9168471
(2015-10-27)
우선권정보
DE-10 2010 052 155 (2010-11-22)
국제출원번호
PCT/EP2011/005854
(2011-11-21)
§371/§102 date
20130703
(20130703)
국제공개번호
WO2012/069172
(2012-05-31)
발명자
/ 주소
Jung, Anke
Seeberger, Andreas
출원인 / 주소
IREMA-FILTER GMBH
대리인 / 주소
Haun, Niels
인용정보
피인용 횟수 :
0인용 특허 :
31
초록▼
An air filter medium consisting of a non-woven is provided, which is produced using a melting and spinning method and has a depth filter constituent and a surface filter constituent, wherein the air filter medium is configured such that it has long-lasting functionality owing to the depth filter con
An air filter medium consisting of a non-woven is provided, which is produced using a melting and spinning method and has a depth filter constituent and a surface filter constituent, wherein the air filter medium is configured such that it has long-lasting functionality owing to the depth filter constituent and can be substantially regenerated with a reverse pulse owing to the surface filter constituent.
대표청구항▼
1. An air filter medium comprising a non-woven material, which is produced using a melting and spinning method and has a first side, wherein selected portions of the first side include a depth filter constituent which picks up particles over the depth of the depth filter constituent and wherein sele
1. An air filter medium comprising a non-woven material, which is produced using a melting and spinning method and has a first side, wherein selected portions of the first side include a depth filter constituent which picks up particles over the depth of the depth filter constituent and wherein selected portions of the first side include a surface filter constituent, configured to retain particles on the surface thereof, wherein the surface filter constituent can be at least partially regenerated with a reverse pulse to remove particles from the surface thereof, and wherein the air filter medium is configured such that it has long-lasting functionality owing to the depth filter constituent. 2. The air filter medium according to claim 1, wherein the depth filter constituent and/or the surface filter constituent comprises an open-pored fibre material. 3. The air filter medium according to claim 1, wherein the thickness of the surface filter constituent is smaller than the thickness of the depth filter constituent. 4. The air filter medium according to claim 1, wherein the surface filter constituent is substantially 0.1 mm to 1 mm thick and the depth filter constituent is substantially 1 mm to 8 mm thick. 5. The air filter medium according to claim 1, wherein the depth filter constituent comprises a deep-drawn non-woven material. 6. The air filter medium according to claim 1, wherein the depth filter constituent is arranged on the surface filter constituent, which forms a continuous layer. 7. The air filter medium according to claim 1, wherein the depth filter constituent is only arranged on one side of the surface filter constituent. 8. The air filter medium according to claim 1, which has a three-dimensional macrostructure, which preferably comprises four- or six-sided pyramids, cones, curved parts, corrugations or scores. 9. The air filter medium according to claim 8, wherein the macrostructure comprises the depth filter constituent. 10. The air filter medium according to claim 8, wherein the surface between the macrostructure is formed by the surface filter constituent. 11. The air filter medium according to claim 8, wherein the macrostructure is arranged on the inflow side. 12. The air filter medium according to claim 1, wherein most of the fibres of the surface filter constituent have a fibre diameter of less than 15 μm and more preferably between 0.1 μm and 10 μm and even more preferably between 0.5 μm and 8 μm, and most of the fibres of the depth filter constituent substantially have fibre diameters between 3 μm and 40 μm, preferably between 15 μm and 30 μm, more preferably between 20 μm and 30 μm. 13. The air filter medium according to claim 12, wherein the fibre diameter of the surface filter constituent and/or of the depth filter constituent decreases in the direction of the air flow to be filtered. 14. The air filter medium according to claim 1, wherein the air permeability is 200 to 3500 l/m2s, preferably 800 to 2000 l/m2s at a differential pressure of 200 Pa. 15. The air filter medium according to claim 1, wherein the depth filter constituent accounts for 50 to 90%, preferably 50 to 70%, more preferably 70 to 90% of the surface of the non-woven material. 16. An air filter having an air filter medium according to claim 1. 17. A method for producing an air filter medium according to claim 1, wherein the depth filter constituent is deep-drawn. 18. A method for filtering air with an air filter according to claim 16, wherein the air filter can be regenerated by means of a reverse pulse. 19. A method for producing an air filter medium having a non-woven material, comprising providing a melted material and spraying the melted material out of one or more nozzles in the melted state onto a substrate to create the air filter medium of claim 1.
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이 특허에 인용된 특허 (31)
Georger William A. (Dunwoody GA) Jones Mark F. (Huntersville NC) Kopacz Thomas J. (Omro WI) Zelazoski Gregory A. (Woodstock GA), Abrasion resistant fibrous nonwoven composite structure.
Tadeusz Jaroszczyk ; Jeffrey S. Morgan ; Kent J. Kallsen ; Stephen L. Fallon ; Daniel R. Cady ; Jon S. Wake, Enhanced performance fibrous filter media and extended life fluid filter assembly.
Chou Richard Tien-Hua ; Ireland Patrick Stephen ; Molnar Charles John ; Lim Hyun Sung ; Shin Hyunkook, Meltblown ionomer microfibers and non-woven webs made therefrom for gas filters.
Seiler Kurt (Abtsteinach DEX) Heidel Peter (Bobingen DEX), Nonwoven material of two or more layers, in particular with long-term filter properties and manufacture thereof.
Englebert Stephen M. (Woodstock GA) Wagner Ann L. (Hortonville WI) Hafer Gregory S. (Atlanta GA) Logsdon Nanette J. (Appleton WI), Nonwoven web with projections.
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