IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0887029
(2010-09-21)
|
등록번호 |
US-8628296
(2014-01-14)
|
우선권정보 |
DE-10 2009 042 260 (2009-09-22) |
발명자
/ 주소 |
- Grussmann, Elmar
- Smatloch, Christian
- Landermann, Lars
|
출원인 / 주소 |
- Benteler Automobiltechnik GmbH
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
2 |
초록
▼
An exhaust-gas turbocharger includes a bearing flange for securement of the exhaust-gas turbocharger to a bearing housing of a turbine wheel. The bearing flange is provided with an outer circumferential fin having a base portion which terminates in a free end. The base portion is defined by a width
An exhaust-gas turbocharger includes a bearing flange for securement of the exhaust-gas turbocharger to a bearing housing of a turbine wheel. The bearing flange is provided with an outer circumferential fin having a base portion which terminates in a free end. The base portion is defined by a width which is greater than a width of the free end. An outer housing is welded to the outer circumferential fin of the bearing flange, and accommodates an impeller housing.
대표청구항
▼
1. An exhaust-gas turbocharger, comprising: a bearing flange for securement to a bearing housing of a turbine wheel, said bearing flange provided with an outer circumferential fin having a base portion terminating in a free end, wherein the base portion is defined by a width which is greater than a
1. An exhaust-gas turbocharger, comprising: a bearing flange for securement to a bearing housing of a turbine wheel, said bearing flange provided with an outer circumferential fin having a base portion terminating in a free end, wherein the base portion is defined by a width which is greater than a width of the free end, and wherein the base portion has a rounded transition towards the bearing flange;an outer housing welded to the outer circumferential fin of the bearing flange; andan impeller housing accommodated in the outer housing. 2. The exhaust-gas turbocharger of claim 1, wherein the width of the base portion increases with increasing distance from the free end of the fin. 3. The exhaust-gas turbocharger of claim 1, wherein the fin has a wall thickness in a range from 0.9 to 1.3 of a wall thickness of the outer housing. 4. The exhaust-gas turbocharger of claim 1, wherein the bearing flange has a first groove immediately adjacent to the fin for engagement of the outer housing. 5. The exhaust-gas turbocharger of claim 4, wherein the outer housing is formed of sheet-metal shells defining a top shell and a bottom shell, said top and bottom shells engaging the first groove in confronting relationship. 6. The exhaust-gas turbocharger of claim 1, wherein the fin is sized to project out in a radial direction of the bearing flange, said outer housing resting on the fin in an axial direction and welded thereto. 7. The exhaust-gas turbocharger of claim 1, wherein the base portion of the fin extends in a radial direction, with the connection zone extending at an angle to the base portion. 8. The exhaust-gas turbocharger of claim 7, wherein the angle is 90°. 9. The exhaust-gas turbocharger of claim 1, wherein the impeller housing is constructed in one piece with the bearing flange. 10. The exhaust-gas turbocharger of claim 1, wherein the fin is connected with the outer housing by a weld seam in the form of a fillet weld on an end face of the free end of the fin. 11. The exhaust-gas turbocharger of claim 1, wherein the fin is connected with the outer housing by a weld seam in the form of a fillet weld on an end face of the outer housing. 12. The exhaust-gas turbocharger of claim 4, wherein the bearing flange has a radially projecting first collar at a distance to the fin to thereby define a radial circumferential second groove there between so that the fin is positioned between the first and second grooves. 13. An exhaust-gas turbocharger, comprising: a bearing flange for securement to a bearing housing of a turbine wheel, said bearing flange provided with an outer circumferential fin having a base portion terminating in a free end, wherein the base portion is defined by a width which is greater than a width of the free end, said bearing flange having a first groove immediately adjacent to the fin for engagement of the outer housing, a radially projecting first collar at a distance to the fin to thereby define a radial circumferential second groove there between so that the fin is positioned between the first and second grooves, and a second collar in spaced-apart relationship to the fin, with the first groove being defined there between so that the bearing flange has a substantial W-shaped outer contour;an outer housing welded to the outer circumferential fin of the bearing flange; andan impeller housing accommodated in the outer housing. 14. The exhaust-gas turbocharger of claim 13, wherein the fin and the outer housing are welded to one another in a connection zone which points in an axial direction of the bearing flange. 15. The exhaust-gas turbocharger of claim 13, wherein the width of the base portion increases with increasing distance from the free end of the fin. 16. The exhaust-gas turbocharger of claim 13, wherein the fin has a wall thickness in a range from 0.9 to 1.3 of a wall thickness of the outer housing. 17. The exhaust-gas turbocharger of claim 13, wherein the fin is sized to project out in a radial direction of the bearing flange, said outer housing resting on the fin in an axial direction and welded thereto. 18. The exhaust-gas turbocharger of claim 13, wherein the impeller housing is constructed in one piece with the bearing flange. 19. The exhaust-gas turbocharger of claim 13, wherein the fin is connected with the outer housing by a weld seam in the form of a fillet weld on an end face of the free end of the fin. 20. The exhaust-gas turbocharger of claim 13, wherein the fin is connected with the outer housing by a weld seam in the form of a fillet weld on an end face of the outer housing. 21. An exhaust-gas turbocharger, comprising: a bearing flange for securement to a bearing housing of a turbine wheel, said bearing flange provided with an outer circumferential fin having a base portion terminating in a free end, wherein the base portion is defined by a width which is greater than a width of the free end said bearing flange having a first groove immediately adjacent to the fin for engagement of the outer housing and a radially projecting first collar at a distance to the fin to thereby define a radial circumferential second groove there between so that the fin is positioned between the first and second grooves wherein the width of the base portion increases in a direction of the second groove in two increments at different inclinations;an outer housing welded to the outer circumferential fin of the bearing flange; andan impeller housing accommodated in the outer housing.
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