IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0772619
(2007-07-02)
|
등록번호 |
US-8257659
(2012-09-04)
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발명자
/ 주소 |
- Simon, III, Conrad J.
- Yonushonis, Thomas M.
- Blackwell, Bryan E.
|
출원인 / 주소 |
- Cummins Filtration IP, Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
7 |
초록
▼
An inlet face for an aftertreatment device that prevents and/or eliminates face-plugging for a passageway where the inlet face is disposed. The inlet face includes a particular end surface disposed on an outer surface at the end of a substrate. The end surface includes at least one of a three-dimens
An inlet face for an aftertreatment device that prevents and/or eliminates face-plugging for a passageway where the inlet face is disposed. The inlet face includes a particular end surface disposed on an outer surface at the end of a substrate. The end surface includes at least one of a three-dimensional topographical configuration disposed at the end of the substrate, a chemical coating applied on the end of the substrate, or both a three-dimensional topographical configuration disposed on the end of the substrate and a chemical coating applied on the three-dimensional topographical configuration. As one example, the inlet face can be helpful in preventing carbonaceous fouling, which can result from engine exhaust material, such as carbon soot and other engine exhaust by-products.
대표청구항
▼
1. An apparatus comprising: an engine exhaust aftertreatment device having a substrate including a cellular structure with fluid flow paths configured to enable fluid flow through the substrate, the cellular structure having a catalyzed coating disposed thereon,the cellular structure having an inlet
1. An apparatus comprising: an engine exhaust aftertreatment device having a substrate including a cellular structure with fluid flow paths configured to enable fluid flow through the substrate, the cellular structure having a catalyzed coating disposed thereon,the cellular structure having an inlet end surface defined on an end of the substrate and on outer end surfaces of the cellular structure located at the end of the substrate, the inlet end surface coated with the catalyzed coating and configured to prevent and/or eliminate face-plugging on the substrate; andthe catalyzed coating on the inlet end surface has an elevated loading relative to the catalyzed coating on the cellular structure defining the fluid flow paths. 2. The apparatus of claim 1, wherein the inlet end surface comprises a three-dimensional topographical configuration such that the inlet end surface is non-planar at the end. 3. The apparatus of claim 2, wherein the three-dimensional topographical configuration comprises a plurality of adjacent v-shaped parallel rows. 4. The apparatus of claim 2, wherein the three-dimensional topographical configuration comprises a first plurality of adjacent v-shaped parallel rows and a second plurality of adjacent v-shaped parallel rows that are orthogonal to the first plurality of adjacent v-shaped rows, such that the first and second plurality of adjacent v-shaped rows are configured as a multiple four-sided pyramid-like arrangement. 5. The apparatus of claim 1, wherein the coating is at least one selected from the group consisting of a catalytic precious metal, a catalytic precious metal oxide, a catalytic base metal, and a catalytic base metal oxide. 6. The apparatus of claim 1, wherein substantially all of the surface area of the inlet surface is coated with the catalyzed coating. 7. The apparatus of claim 1, wherein the cellular structure comprises a plurality of separate cells extending into the end of the substrate and through the substrate, the cells each having sidewalls and wall edges; and wherein the cells are configured adjacently of each other and are disposed substantially about the entire area of the end surface. 8. The apparatus of claim 7, wherein the cellular structure comprising a plurality of plug portions arranged with the plurality of cells. 9. The apparatus of claim 7, wherein the sidewalls of each cell comprise a first pair of parallel walls and a second pair of parallel walls orthogonal to the first pair of parallel walls, one of the first or second pairs of parallel walls comprises a first wall and a second wall, one of the first or second walls having a larger dimension extending outwardly from the end of the substrate than the other of the first or second wall, such that the distance between outer ends of the first and second walls is larger than a distance between outer ends of the other of the first or second pair of parallel walls. 10. The apparatus of claim 1, wherein the engine exhaust aftertreatment device is selected from the group consisting of a close-coupled catalyst, a diesel oxidation catalyst, an NOx adsorber catalyst, a selective catalytic reduction catalyst, a catalyzed soot filter, or a diesel particulate filter. 11. An aftertreatment device comprising: a substrate including an end having a cellular structure configured to enable fluid flow through the substrate, the cellular structure having an inlet face disposed at the end of the substrate,wherein the inlet face having an end surface disposed on the end of the substrate and on outer surfaces of the cellular structure located at the end of the substrate, the end surface including a catalyzed coating for preventing and/or eliminating face-plugging on the substrate, where the catalyzed coating has a higher loading at the end surface than the remainder of the substrate. 12. The aftertreatment device of claim 11, wherein the end surface is defined by a three-dimensional topographical configuration. 13. The aftertreatment device of claim 12, wherein the three-dimensional topographical configuration comprises a first plurality of adjacent v-shaped parallel rows and a second plurality of adjacent v-shaped parallel rows that are orthogonal to the first plurality of adjacent v-shaped rows, such that the first and second plurality of adjacent v-shaped rows are configured as a multiple four-sided pyramid-like arrangement. 14. The apparatus of claim 1; wherein the coating is at least one selected from the group consisting of a catalytic precious metal, a catalytic precious metal oxide, a catalytic base metal, and a catalytic base metal oxide;wherein substantially all of the surface area of the inlet end surface is coated with the catalyzed coating;wherein the cellular structure comprises a plurality of separate cells extending into the end of the substrate and through the substrate, the cells each having sidewalls and wall edges; andwherein the cells are configured adjacently of each other and are disposed substantially about the entire area of the end surface. 15. An apparatus comprising: an engine exhaust aftertreatment device including a cellular structure with fluid flow paths configured to enable fluid flow, the cellular structure having a catalyzed coating disposed thereon;the cellular structure including an inlet end outer surface on a fluid inlet end of the cellular structure, the inlet end outer surface having a catalyzed coating disposed thereon to counteract face-plugging on the substrate; andthe catalyzed coating having a loading that is greatest at the inlet end outer surface relative to the remainder of the cellular structure. 16. The apparatus of claim 15 which further includes a three-dimensional topographical configuration such that the inlet end outer surface is non-planar.
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