IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0155198
(2005-06-16)
|
등록번호 |
US-7481047
(2009-01-27)
|
우선권정보 |
DE-20 2004 009 506 U(2004-06-17); DE-20 2004 019 896 U(2004-12-20) |
발명자
/ 주소 |
- Radel,Harry
- Kruger,Markus
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
2 |
초록
▼
To provide an exhaust system (100) for a combustion engine having a housing (10) in which at least one aperture for an exhaust gas inlet (11) and an additional aperture for an exhaust gas outlet (12) are provided, and having a catalytic element that is arranged in the housing (10) of the exhaust sys
To provide an exhaust system (100) for a combustion engine having a housing (10) in which at least one aperture for an exhaust gas inlet (11) and an additional aperture for an exhaust gas outlet (12) are provided, and having a catalytic element that is arranged in the housing (10) of the exhaust system (100) for cleaning exhaust gases from the combustion engine, and which can be manufactured simply and inexpensively, yet still achieves a high conversion rate to satisfy increasingly stringent environmental regulations, it is suggested to arrange at least one cleaning unit (13) including at least the described catalytic element (14) and a reflection means (15) in housing (10) of the exhaust system (100), in which some or all of the exhaust gases are directed through the catalytic element (14) of the cleaning unit (13) before reaching the reflection means (15) disposed behind it, which directs the exhaust gases (22) through the catalytic element (14) again, this time from the other side.
대표청구항
▼
The invention claimed is: 1. An exhaust system for a combustion engine having a housing in which an aperture is provided for an exhaust gas inlet and a further aperture is provided for an exhaust gas outlet, and having a catalytic element that is arranged in the housing of the exhaust system for cl
The invention claimed is: 1. An exhaust system for a combustion engine having a housing in which an aperture is provided for an exhaust gas inlet and a further aperture is provided for an exhaust gas outlet, and having a catalytic element that is arranged in the housing of the exhaust system for cleaning exhaust gases from the combustion engine, characterized in that a cleaning unit is arranged in the housing of the exhaust system and contains at least the catalytic element and reflection means, wherein some or all of the exhaust gases are passed through the catalytic element of the cleaning unit before they reach the reflection means, which passes the exhaust gases through the catalytic element again, this time from another side, and further characterized in that the reflection means is bowl-shaped or parabolic, wherein one aperture of the reflection means is directed towards the catalytic element of the cleaning unit. 2. The exhaust system according to claim 1, characterized in that the exhaust gases flow through the same catalytic element of the cleaning unit multiple times from alternating sides, the reflected exhaust gases being directed from the cleaning unit, though the housing and back to the cleaning unit. 3. The exhaust system according to claim 1, characterized in that the entire aperture of the reflection means is covered by the catalytic element so that all exhaust gases reflected from the cleaning unit flow through the catalytic element. 4. The exhaust system according to claim 1, characterized in that a floor of the reflection means has a corrugated or relief profile, so that accumulation of the reflected exhaust gases is preventable. 5. The exhaust system according to claim 1, characterized in that the reflection means forms a part of the housing. 6. The exhaust system according to claim 1, characterized in that the reflection means comprises stainless steel. 7. The exhaust system according to claim 1, characterized in that the cleaning unit is arranged opposite an aperture for the exhaust gas inlet. 8. The exhaust system according to claim 1, characterized in that the cleaning unit comprises at least one of multiple catalytic elements and multiple reflection means. 9. The exhaust system according to claim 1, characterized in that a second cleaning unit is provided in an interior of the housing. 10. The exhaust system according to claim 9, characterized in that the second cleaning unit is arranged opposite a first cleaning unit, so that the reflected exhaust gases are directed out of the first cleaning unit and into the second cleaning unit. 11. The exhaust system according to claim 1, characterized in that at least one additional first catalytic element is provided in the housing, through which some or all of the entering exhaust gases are directed. 12. The exhaust system according to claim 11, characterized in that an aperture in the exhaust gas inlet is enclosed or contained by the first catalytic element in the interior of the housing. 13. The exhaust system according to claim 12, characterized in that the first catalytic element is arranged in the form of an arc in front of the aperture for exhaust gas inlet. 14. The exhaust system according to claim 13, characterized in that both the one or more additional catalytic elements and the one or more catalytic elements belonging to the cleaning unit are designed as meshes or perforated panels. 15. The exhaust system according to claim 11, characterized in that the catalytic elements are designed as structural supporting members. 16. The exhaust system according to claim 11, characterized in that the catalytic elements are welded or soldered together or permanently connected by some other means at the contact points of the mesh-forming elements. 17. The exhaust system according to claim 11, characterized in that the catalytic elements are partly or entirely coated. 18. An exhaust system for a combustion engine having a housing in which an aperture is provided for an exhaust gas inlet and a further aperture is provided for an exhaust gas outlet, and having a catalytic element that is arranged in the housing of the exhaust system for cleaning exhaust gases from the combustion engine, characterized in that a cleaning unit is arranged in the housing of the exhaust system and contains at least the catalytic element and reflection means, wherein some or all of the exhaust gases are passed through the catalytic element of the cleaning unit before they reach the reflection means, which passes the exhaust gases through the catalytic element again, this time from another side, and further characterized in that a floor of the reflection means has a corrugated or relief profile, so that accumulation of the reflected exhaust gases is preventable. 19. An exhaust system for a combustion engine having a housing in which an aperture is provided for an exhaust gas inlet and a further aperture is provided for an exhaust gas outlet, and having a catalytic element that is arranged in the housing of the exhaust system for cleaning exhaust gases from the combustion engine, characterized in that a cleaning unit is arranged in the housing of the exhaust system and contains at least the catalytic element and reflection means, wherein some or all of the exhaust gases are passed through the catalytic element of the cleaning unit before they reach the reflection means, which passes the exhaust gases through the catalytic element again, this time from another side, and further characterized in that a second cleaning unit is provided in an interior of the housing, wherein the second cleaning unit is arranged opposite a first cleaning unit, so that the reflected exhaust gases are directed out of the first cleaning unit and into the second cleaning unit. 20. An exhaust system for a combustion engine having a housing in which an aperture is provided for an exhaust gas inlet and a further aperture is provided for an exhaust gas outlet, and having a catalytic element that is arranged in the housing of the exhaust system for cleaning exhaust gases from the combustion engine, characterized in that a cleaning unit is arranged in the housing of the exhaust system and contains at least the catalytic element and reflection means, wherein some or all of the exhaust gases are passed through the catalytic element of the cleaning unit before they reach the reflection means, which passes the exhaust gases through the catalytic element again, this time from another side, and characterized in that at least one additional first catalytic element is provided in the housing, through which some or all of the entering exhaust gases are directed, and characterized in that at least one additional first catalytic element is provided in the housing, through which some or all of the entering exhaust gases are directed, and characterized in that an aperture in the exhaust gas inlet is enclosed or contained by the first catalytic element in the interior of the housing, and further characterized in that the first catalytic element is arranged in the form of an arc in front of the aperture for exhaust gas inlet. 21. The exhaust system according to claim 20, characterized in that both the one or more additional catalytic elements and the one or more catalytic elements belonging to the cleaning unit are designed as meshes or perforated panels.
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