Particle filter with hydrolysis coating, device and motor vehicle
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0942468
(2010-11-09)
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등록번호 |
US-8845973
(2014-09-30)
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우선권정보 |
DE-10 2008 022 990 (2008-05-09) |
발명자
/ 주소 |
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출원인 / 주소 |
- EMITEC Gesellschaft fuer Emissionstechnologie mbH
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
8 |
초록
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A particle filter includes channels that are formed by porous walls and run between a first end face and a second end face of the particle filter. The first end face has a hydrolysis coating outside the channels. A device includes at least one exhaust gas line through which an exhaust gas can flow i
A particle filter includes channels that are formed by porous walls and run between a first end face and a second end face of the particle filter. The first end face has a hydrolysis coating outside the channels. A device includes at least one exhaust gas line through which an exhaust gas can flow in a flow direction, a nozzle for introducing a reducing agent containing or forming ammonia, and the aforementioned particle filter. The first end face of the particle filter is oriented towards the nozzle. A motor vehicle having the particle filter or the device, is also provided.
대표청구항
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1. A particle filter, comprising: a first end side and a second end side;porous walls forming channels extending between said first end side and said first end side and said second end side, said porous walls defining webs having web front surfaces forming a part of said first end side; anda hydroly
1. A particle filter, comprising: a first end side and a second end side;porous walls forming channels extending between said first end side and said first end side and said second end side, said porous walls defining webs having web front surfaces forming a part of said first end side; anda hydrolysis coating disposed at said first end side outside said channels;first closure devices for closing channels, said first closure devices disposed at said first end side, said first closure devices having respective front surfaces forming a part of said first end side, all of said respective front surfaces and all of said web front surfaces having said hydrolysis coating thereon. 2. The particle filter according to claim 1, which further comprises second closure devices for closing channels, said second closure devices disposed at said second end side, said second closure devices having respective base surfaces delimiting channels, and said base surfaces having said hydrolysis coating. 3. The particle filter according to claim 1, wherein said channels have a length with a first section extending to said second end side, and said channels have said hydrolysis coating over said first section of said length. 4. The particle filter according to claim 3, wherein said length of said channels has a second section disposed between said first end side and said second end side, and said channels have an SCR coating over said second section of said length. 5. The particle filter according to claim 4, wherein said length of said channels has a third section extending to said first end side, and said channels have said hydrolysis coating over said third section of said length. 6. The particle filter according to claim 1, wherein said channels have a length with a second section disposed between said first end side and said second end side, and said channels have an SCR coating over said second section of said length. 7. The particle filter according to claim 1, wherein said channels have a length with a third section extending to said first end side, and said channels have said hydrolysis coating over said third section of said length. 8. The particle filter according to claim 1, wherein at least some of said channels are at least partially curved or provided with structures projecting into said channels. 9. A device, comprising: at least one exhaust line for conducting an exhaust gas flow in a flow direction;a nozzle for introducing a reducing agent including or forming ammonia into said at least one exhaust line; anda particle filter according to claim 1, said first end side of said particle filter being directed toward said nozzle. 10. The device according to claim 9, wherein said nozzle is positioned to define an injection direction aligned obliquely relative to said first end side or to said flow direction of the exhaust gas. 11. The device according to claim 9, which further comprises an oxidation catalytic converter disposed in said at least one exhaust line, said oxidation catalytic converter being positioned upstream of said nozzle in said flow direction of the exhaust gas and at a distance of at least 150 millimeters from said particle filter. 12. A motor vehicle, comprising: an internal combustion engine; andan exhaust system receiving exhaust gas from said internal combustion engine, said exhaust system having a device according to claim 9. 13. A motor vehicle, comprising: an internal combustion engine; andan exhaust system receiving exhaust gas from said internal combustion engine, said exhaust system having at least one particle filter according to claim 1. 14. The particle filter according to claim 1, wherein at least some of said channels have said hydrolysis coating at said first end and said second end and an SCR coating extending over a length between said hydrolysis coating at said first end and said hydrolysis coating at said second end, said SCR coating interrupting said hydrolysis coating between. 15. The particle filter according to claim 1, wherein said channels having said closure devices only have an SCR coating thereon.
이 특허에 인용된 특허 (8)
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Dornseiffer, Jürgen; Hackfort, Helmut; Hünnekes, Edgar, Diesel particulate filter comprising a finely dispersed diesel particulate catalyst.
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Ichikawa, Ataru, Exhaust gas purification apparatus.
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Bardon,S챕bastien; Gleize,Vincent, Filter block for filtering particles contained in the exhaust gas of a combustion engine.
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Brück, Rolf, High-temperature-resistant coated fiber layer and particulate trap with the coated fiber layer.
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Hodgson, Jan; Brück, Rolf; Reizig, Meike, Method for removing soot particles from an exhaust gas, associated collecting element and system.
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Br체ck,Rolf; Reizig,Meike, Particle trap and assemblies and exhaust tracts having the particle trap.
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Muller, Raimund; Hofmann, Lothar; Schardt, Kurt; Mathes, Wieland, Process for the catalytic cleaning of the exhaust gas from a combustion plant.
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Harris, Michael; Leyrer, Jurgen; Demel, Yvonne; Lox, Egbert; Kreuzer, Thomas, Structured catalysts for selective reduction of nitrogen oxides by ammonia using a compound that can be hydrolyzed to ammonia.
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