Muffler with an integrated catalytic converter
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0996378
(2004-11-24)
|
우선권정보 |
DE-103 56 000(2003-11-27) |
발명자
/ 주소 |
- W철rner,Siegfried
- Buhmann,Rudolf
- Werni,Marcus
|
출원인 / 주소 |
- J. Ebersp채cher GmbH &
- Co. KG
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
6 |
초록
▼
A muffler has an integrated SCR catalytic converter for an exhaust line of an internal combustion engine, in particular in a motor vehicle The muffler includes a housing which has an intake trumpet on the intake end and an exhaust pipe on the output end. Catalytic converter elements are arranged in
A muffler has an integrated SCR catalytic converter for an exhaust line of an internal combustion engine, in particular in a motor vehicle The muffler includes a housing which has an intake trumpet on the intake end and an exhaust pipe on the output end. Catalytic converter elements are arranged in the housing with one inlet end in an inlet chamber and with an outlet end in an outlet chamber. An outlet end of the intake trumpet communicates with the inlet chamber. To improve the efficiency of the SCR catalytic converter the inlet chamber is sealed off from the outside and with respect to the intake trumpet and the catalytic converter elements to the extent that in operation of the internal combustion engine with exhaust gas loaded with urea, passing through the intake trumpet into the inlet chamber, the exhaust gas leaves the inlet chamber only through the catalytic converter elements.
대표청구항
▼
The invention claimed is: 1. A muffler having an integrated catalytic converter for an exhaust line of an internal combustion engine comprising: (a) a housing having an input end, an output end, an intake trumpet on the input end, and an exhaust pipe on the output end, said intake trumpet having an
The invention claimed is: 1. A muffler having an integrated catalytic converter for an exhaust line of an internal combustion engine comprising: (a) a housing having an input end, an output end, an intake trumpet on the input end, and an exhaust pipe on the output end, said intake trumpet having an intake trumpet outlet end; (b) an inlet chamber housing inserted as a separate component into the housing comprising an inlet chamber communicating with said intake trumpet outlet end; and (c) at least two catalytic converter elements arranged in the housing having parallel flow through said at least two catalytic converter elements, each catalytic converter element comprising one catalytic converter element inlet end in the inlet chamber and one catalytic converter element outlet end in an outlet chamber, said inlet chamber being sealed off from the outside and from the intake trumpet and said at least two catalytic converter elements to the extent that during operation of the internal combustion engine, exhaust gas entering the inlet chamber through the intake trumpet leaves the inlet chamber only through said at least two catalytic converter elements. 2. The muffler according to claim 1, wherein the outlet chamber communicates through a partition with a collecting chamber, wherein the exhaust pipe has an exhaust pipe inlet end communicating with the collecting chamber. 3. The muffler according to claim 2, wherein the partition is perforated or contains at least one opening between the outlet chamber and the collecting chamber. 4. The muffler according to claim 3, wherein the partition is perforated and contains at least one opening between the outlet chamber and the collecting chamber. 5. The muffler according to claim 2, wherein the collecting chamber is arranged between the inlet chamber and the outlet chamber. 6. The muffler according to claim 2, wherein the exhaust pipe inlet end is positioned just in front of the partition between the outlet chamber and the collecting chamber, and the exhaust pipe inside the collecting chamber is perforated. 7. The muffler according claim 1, wherein a distributor element or a mixing element is arranged in the intake trumpet and distributes the incoming gas among the catalytic converter element inlet ends of the at least two catalytic converter elements. 8. The muffler according to claim 1, wherein each catalytic converter element has a ring-shaped perforation on its catalytic converter element outlet end. 9. The muffler according to claim 1, wherein a damping chamber that contains damping material is situated in the housing, and a perforated section of the exhaust pipe extends inside the damping chamber. 10. The muffler according to claim 9, wherein at least a portion of the damping chamber is arranged between the collecting chamber and the inlet chamber. 11. The muffler according to claim 9, wherein the exhaust pipe has perforations in the collecting chamber and in the damping chamber and the perforation of the exhaust pipe in the collecting chamber has a larger open cross section than the perforation of the exhaust pipe in the damping chamber. 12. The muffler according to claim 1, wherein the exhaust pipe extends inside a different level in the housing than the at least one two catalytic converter elements. 13. The muffler according to claim 1, wherein each of the at least one two catalytic converter elements is an SCR catalytic converter element. 14. The muffler according to claim 1, wherein the intake trumpet or the housing or the inlet chamber housing or an intake bottom of the housing through which the intake trumpet passes or an outlet bottom of the housing through which the exhaust pipe passes are designed as a double wall with an insulation insert. 15. The muffler according to claim 1, wherein the inlet chamber is sealed by soldered connections or by welded connections which surround the intake trumpet or each catalytic converter element or the inlet chamber with respect to the housing in a ring shape. 16. A muffler having an integrated catalytic converter for an exhaust line of an internal combustion engine comprising: (a) a housing having an input end, an output end, an intake trumpet on the input end, and an exhaust pipe on the output end, said intake trumpet having a section containing an intake trumpet outlet end and forming an inlet chamber communicating with said intake trumpet outlet end; and (b) at least two catalytic converter elements arranged in the housing having parallel flow through said at least two catalytic converter elements, each catalytic converter element comprising one catalytic converter element inlet end in the inlet chamber and one catalytic converter element outlet end in an outlet chamber, said inlet chamber being sealed off from the outside and from the intake trumpet and said at least two catalytic converter elements to the extent that during operation of the internal combustion engine, exhaust gas entering the inlet chamber through the intake trumpet leaves the inlet chamber only through said at least two catalytic converter elements.
이 특허에 인용된 특허 (6)
-
Pawson, Kenneth; Godrich, Robert David, Catalytic converter.
-
Olson David A. (Stoughton WI), Combination catalytic converter and muffler for an exhaust system.
-
Woerner, Siegfried; Zacke, Peter; Hauber, Thomas; Buhmann, Rudolf; Werni, Marcus, Exhaust cleaning system for motor vehicles, especially diesel-powered utility vehicles.
-
Olivo John R. (5410 W. Agatite Ave. Chicago IL 60630), Integrated post-engine emissions heater, catalytic converter and muffler.
-
Shiki Akira (Tachikawa JPX) Nakano Masaru (Sayama JPX) Nakazima Hideki (Saitama JPX), Muffler with catalyst for internal combustion engine.
-
Raimund Muller DE; Lothar Hofmann DE; Kurt Schardt DE; Wieland Mathes DE, Process and device for the catalytic cleaning of the exhaust gas from a combustion plant.
이 특허를 인용한 특허 (10)
-
Kertz, Tony G.; Brian, Christopher M., Engine hood assembly enclosure with exhaust aftertreatment device integrated therein, and machine using same.
-
Wieland, Arthur; Krause, Michael; Neumann, Felix, Exhaust gas cleaning device, exhaust system, removal method.
-
Schwarz, Roland; Grupp, Johannes; Wenz, Marco, Exhaust gas treatment device.
-
Brueck, Rolf; Johansson, Conny; Laurell, Mats, Exhaust gas treatment device for use near an engine and motor vehicle having the device.
-
Werni, Marcus; Sauer, Andreas, Exhaust gas treatment unit.
-
Merchant, Jack Albert; Olsen, Paul F.; Charles, Eric J., Exhaust system thermal enclosure.
-
Toyoshima, Tsutomu; Saito, Hiroshi; Imamura, Haruki, Fuel cell vehicle.
-
Oriet, Leo P.; Matar, Nouri, Internal combustion engine exhaust after-treatment system and method.
-
Han, Hyun-sik; Bae, Jae-ho; Kim, Eun-seok, SCR catalytic converter without NH3 or urea injection.
-
Baig, Mirza P.; Denis, Andrew M.; Engelsen, Kristian; Rao, Pradyumna V.; Isada, Raymond U.; Gerges, Raymond B., System and method for accommodating aftertreatment bricks.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.