IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0435501
(2009-05-05)
|
등록번호 |
US-8336301
(2012-12-25)
|
우선권정보 |
DE-10 2008 022 081 (2008-05-05) |
발명자
/ 주소 |
- Werni, Marcus
- Sauer, Andreas
|
출원인 / 주소 |
- J. Eberspaecher GmbH & Co. KG
|
대리인 / 주소 |
Reinhart Boerner Van Deuren P.C.
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
17 |
초록
▼
The present invention relates to an exhaust gas treatment unit for an exhaust system of a combustion engine, in particular of a motor vehicle, includes a housing, a plurality of exhaust gas treatment elements, which are arranged in the housing and through which a parallel flow is possible. The unit
The present invention relates to an exhaust gas treatment unit for an exhaust system of a combustion engine, in particular of a motor vehicle, includes a housing, a plurality of exhaust gas treatment elements, which are arranged in the housing and through which a parallel flow is possible. The unit further includes an outlet nozzle, which penetrates a side face of the housing, and an outlet space disposed in the housing, whereby the outlet of at least one of the exhaust gas treatment elements opens into the outlet space. The rigidity and/or effectiveness of the exhaust gas treatment unit can be improved by means of a funnel body disposed in the outlet space, and comprising a funnel surface which is permeable to exhaust gas. The funnel body connects an outlet end of one of the exhaust gas treatment elements with the outlet nozzle.
대표청구항
▼
1. An exhaust gas treatment unit for an exhaust system of a combustion engine, comprising: a housing;a plurality of exhaust gas treatment elements arranged in the housing and through which a parallel flow can exist;an outlet nozzle, which penetrates a first side face of the housing;an outlet space,
1. An exhaust gas treatment unit for an exhaust system of a combustion engine, comprising: a housing;a plurality of exhaust gas treatment elements arranged in the housing and through which a parallel flow can exist;an outlet nozzle, which penetrates a first side face of the housing;an outlet space, disposed in housing, into which at least one of the ends of the exhaust gas treatment elements opens; anda funnel body arranged in the outlet space and connecting one outlet end of one of the exhaust gas treatment elements with the outlet nozzle, whereby the surface of the funnel body is permeable to exhaust gas. 2. The exhaust gas treatment unit according to claim 1, wherein the funnel body is attached on the one hand to an intermediate face, that delimits the outlet space and which is penetrated by the outlet ends of the exhaust gas treatment elements, and the funnel body is also attached to at least one of the outlet nozzle and the side face which is penetrated by the outlet nozzle. 3. The exhaust gas treatment unit according to claim 1, wherein the permeability of the funnel surface is provided by at least one of perforations and cut outs and openings and the surface being formed as a funnel surface segment. 4. The exhaust gas treatment unit according to claim 1, wherein an inlet tube is provided which connects an inlet nozzle with an inlet space in the housing. 5. The exhaust gas treatment unit according to claim 4, wherein the inlet tube has a cross sectional area which increases in the flow direction. 6. The exhaust gas treatment unit according to claim 1, wherein an inlet tube is provided which communicatively connects an inlet nozzle with an inlet space disposed in the housing, the inlet tube penetrates the intermediate surface which borders the inlet space, wherein there is a pan-like formation is formed in the intermediate surface, the pan-like formation being open towards the inlet space and receiving the inlet tube. 7. The exhaust gas treatment unit according to claim 1, wherein two intermediate surfaces are arranged in the housing, are penetrated by the exhaust gas treatment elements and delimit a resonance space. 8. The exhaust gas treatment unit according to claim 7, wherein the resonance space communicates with the outlet space through one of the intermediate surfaces. 9. The exhaust gas treatment unit according to claim 1, wherein both side faces of the housing are double-walled and filled with damping material. 10. The exhaust gas treatment unit according to claim 1, wherein a surface of the housing is double-walled and filled with damping material. 11. The exhaust gas treatment unit according to claim 1, wherein the respective exhaust gas treatment element comprises either a single exhaust gas treatment body or a plurality of exhaust gas treatment bodies arranged in series. 12. The exhaust gas treatment unit according to claim 1, wherein the respective exhaust gas treatment element is formed as an oxidation catalyst or as a particle filter. 13. An exhaust gas treatment unit for an exhaust system of a combustion engine, comprising: a housing; andan inlet tube within the housing, the inlet tube connecting an inlet nozzle with an inlet space in the housing, wherein the inlet tube has a cross sectional area which increases in the flow direction;wherein a plurality of exhaust gas treatment elements are arranged in the housing and through which a parallel flow can exist. 14. The exhaust gas treatment unit according to claim 13, wherein an outlet nozzle penetrates a first side face of the housing. 15. The exhaust gas treatment unit according to claim 13, wherein an outlet space is disposed in housing, into which at least one of the ends of the exhaust gas treatment elements opens. 16. An exhaust gas treatment unit for an exhaust system of a combustion engine, comprising: a housing, wherein an inlet tube is provided which connects an inlet nozzle with an inlet space in the housing, wherein the inlet tube has a cross sectional area which increases in the flow direction;wherein a plurality of exhaust gas treatment elements are arranged in the housing and through which a parallel flow can exist;wherein an outlet space is disposed in housing, into which at least one of the ends of the exhaust gas treatment elements opens; andwherein a funnel body is arranged in the outlet space and connecting one outlet end of one of the exhaust gas treatment elements with the outlet nozzle. 17. The exhaust gas treatment unit according to claim 16, wherein the surface of the funnel body is permeable to exhaust gas. 18. The exhaust gas treatment unit according to claim 16, wherein the funnel body is attached on the one hand to an intermediate face, that delimits the outlet space and which is penetrated by the outlet ends of the exhaust gas treatment elements, and the funnel body is also attached to at least one of the outlet nozzle and the side face which is penetrated by the outlet nozzle. 19. The exhaust gas treatment unit according to claim 17, wherein the permeability of the funnel surface is provided by at least one of perforations and cut outs and openings and the surface being formed as a funnel surface segment. 20. The exhaust gas treatment unit according to claim 13, wherein the inlet tube penetrates the intermediate surface which borders the inlet space, wherein there is a pan-like formation is formed in the intermediate surface, the pan-like formation being open towards the inlet space and receiving the inlet tube. 21. The exhaust gas treatment unit according to claim 13, wherein two intermediate surfaces are arranged in the housing, are penetrated by the exhaust gas treatment elements and delimit a resonance space. 22. The exhaust gas treatment unit according to claim 21, wherein the resonance space communicates with the outlet space through one of the intermediate surfaces. 23. The exhaust gas treatment unit according to claim 13, wherein both side faces of the housing are double-walled and filled with damping material. 24. An exhaust gas treatment unit for an exhaust system of a combustion engine, comprising: a housing; andan inlet tube within the housing, the inlet tube connecting an inlet nozzle with an inlet space in the housing, wherein the inlet tube has a cross sectional area which increases in the flow direction;wherein a surface of the housing is double-walled and filled with damping material. 25. The exhaust gas treatment unit according to claim 13, wherein the respective exhaust gas treatment element comprises either a single exhaust gas treatment body or a plurality of exhaust gas treatment bodies arranged in series. 26. The exhaust gas treatment unit according to claim 13, wherein the respective exhaust gas treatment element is formed as an oxidation catalyst or as a particle filter. 27. An exhaust gas treatment unit for an exhaust system of a combustion engine, comprising: a housing; andan inlet tube within the housing, the inlet tube connecting an inlet nozzle with an inlet space in the housing, wherein the inlet tube has a cross sectional area which increases in the flow direction;wherein the housing includes a first sidewall through which fluid operably passes as the fluid enters the housing, the inlet tube having an inlet end upstream from an outlet end, the inlet end of the inlet tube being closer to the first sidewall than the outlet end of the inlet tube. 28. The exhaust gas treatment unit according to claim 27, wherein the housing includes a second sidewall axially spaced apart from the first sidewall forming an opposite side of the housing as the first sidewall, the second sidewall defining at least part of the inlet space in the housing, the outlet end of the inlet tube being closer to the second sidewall than the first sidewall. 29. The exhaust gas treatment unit according to claim 28, wherein at least one exhaust gas treatment element is arranged in the housing, the housing defines an outlet space within the housing, the outlet space being fluidly connected to the inlet space by the at least one exhaust gas treatment element, the outlet space being defined at least in part by the first sidewall, fluid that has passed through the at least one exhaust gas treatment element exits the housing through the first sidewall.
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