IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0641940
(2009-12-18)
|
등록번호 |
US-8336668
(2012-12-25)
|
우선권정보 |
DE-10 2008 062 917 (2008-12-23) |
발명자
/ 주소 |
- Hanitzsch, Robert
- Spieth, Arnulf
|
출원인 / 주소 |
- J. Eberspächer GmbH & Co. KG
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
15 |
초록
▼
A flanged joint (1) of an exhaust system of an internal combustion engine, especially of a motor vehicle, is provided for fastening a tubular body (4) of the exhaust system to another component (5). The flanged joint includes a tube bell (2) formed at the end area of the tubular body (4) as well as
A flanged joint (1) of an exhaust system of an internal combustion engine, especially of a motor vehicle, is provided for fastening a tubular body (4) of the exhaust system to another component (5). The flanged joint includes a tube bell (2) formed at the end area of the tubular body (4) as well as a ring-shaped flange (3), which surrounds the tubular body (4) on a side of the tube bell (2) facing away from the other component (5) and which has a plurality of fastening sites (6, 7) for connection to the other component (5).
대표청구항
▼
1. A flanged joint of a motor vehicle exhaust system of an internal combustion engine, for fastening a tubular body of the exhaust system to another exhaust system component or internal combustion engine component, the flanged joint comprising: a tube bell formed at an end area of the tubular body;a
1. A flanged joint of a motor vehicle exhaust system of an internal combustion engine, for fastening a tubular body of the exhaust system to another exhaust system component or internal combustion engine component, the flanged joint comprising: a tube bell formed at an end area of the tubular body;a ring-shaped flange surrounding the tubular body on a side of the tube bell facing away from the other component, the ring-shaped flange having a plurality of fastening sites for connection to the other component; anda surface contour between said flange and the other component, said surface contour extending axially further towards said flange or the another component in areas between said fastening sites than in areas at said fastening sites, said surface contour having a shape to provide a homogenization of surface pressure between fastening sites in the mounted state. 2. A flanged joint in accordance with claim 1, wherein said surface contour is one of formed and arranged between said flange and said tube bell, or between said tube bell and the other component. 3. A flanged joint in accordance with claim 1, wherein said shape of said surface contour is such that said flange is elastically deformed in the mounted state such that the homogenization of the surface pressure between the fastening sites is obtained. 4. A flanged joint in accordance with claim 1, wherein said surface contour between said fastening sites is bulged convexly towards one of said tube bell, said other component, and said flange. 5. A flanged joint in accordance with claim 1, wherein said surface contour is formed exclusively at said tube bell or exclusively at the other component or exclusively at said flange or at least at two members of the group comprising said tube bell, said flange and the other component. 6. A flanged joint in accordance with claim 1, further comprising an intermediate ring, wherein said surface contour is formed at said intermediate ring, said intermediate ring being arranged between said tube bell and said flange. 7. A flanged joint in accordance with claim 6, wherein said intermediate ring has connecting sections for integration of said intermediate ring within said fastening sites. 8. A flanged joint in accordance with claim 6, wherein said intermediate ring is a shaped sheet metal part. 9. A flanged joint in accordance with claim 6, wherein said intermediate ring is of a conical shape. 10. A flanged joint in accordance with claim 6, wherein said intermediate ring has a an axial wall thickness varying in the circumferential direction to embody said surface contour. 11. A flanged joint in accordance with claim 10, wherein the wall thickness of the intermediate first increases in the circumferential direction from one fastening site to an adjacent fastening site and then decreases again. 12. A flanged joint in accordance with claim 1, wherein said flange has exactly two diametrically opposite fastening sites. 13. A flanged joint in accordance with claim 1, wherein said flange has an inner cone on a side facing said tube bell. 14. A flanged joint in accordance with claim 1, wherein said fastening sites are each formed by a passage opening at said flange for a screw connection to the other component. 15. A flanged joint of a motor vehicle exhaust system of an internal combustion engine, for fastening a tubular body of the exhaust system to another exhaust system component or internal combustion engine component, the flanged joint comprising: a tube bell formed at an end area of the tubular body;a ring-shaped flange surrounding the tubular body on a side of the tube bell facing away from the other component, the ring-shaped flange having a plurality of fastening sites for connection to the other component; anda surface contour between said flange and the other component, said surface contour having shape to provide a homogenization of surface pressure between fastening sites in the mounted state, said surface contour between said fastening sites being bulged convexly towards one of said tube bell, the other component and said flange. 16. A flanged joint comprising: an exhaust system tubular body;a tube bell formed at an end area of said tubular body;another component adapted to be adjacent one side of said tubular body;a ring-shaped flange surrounding said tubular body on another side of said tube bell diametrically opposite said another component, said ring-shaped flange having a plurality of fastening sites;a plurality of fasteners, each of said plurality of fasteners arranged at one of said fastening sites and connecting said flange to said another component, each of said fasteners applying a force to a respective fastening site on said flange in a direction against said tube bell and said another component, a stiffness of said flange distributing said force along said flange to areas between said fastening sites, said stiffness diminishing a magnitude of said force with increasing distance from said fastening sites;a surface contour between said flange and said another component, said surface contour having a shape to counteract the diminishing magnitude of the force caused by said stiffness with increasing distance from said fastening sites. 17. A flanged joint in accordance with claim 16, wherein said surface contour is one of formed and arranged between said flange and said tube bell, or between said tube bell and said other component. 18. A flanged joint in accordance with claim 16, wherein said surface contour is shaped such that said flange is elastically deformed such that the homogenization of the surface pressure between the fastening sites is obtained. 19. A flanged joint in accordance with claim 16, wherein said surface contour between said fastening sites is bulged convexly towards one of said tube bell, said another component, and said flange, said surface contour being formed exclusively at said tube bell or exclusively at said another component or exclusively at said flange or at least at two members of the group comprising said tube bell, said flange and said another component. 20. A flanged joint in accordance with claim 16, further comprising an intermediate ring, wherein said surface contour is formed at said intermediate ring, said intermediate ring being arranged between said tube bell and said flange.
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