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A modular exhaust gas assembly includes a turbocharger housing having an exhaust flange and a bearing flange receptacle, and a plurality of turbine scrolls of different sizes for selective installation into the turbocharger housing in dependence on a power of an engine. Each turbine scroll has an in

A modular exhaust gas assembly includes a turbocharger housing having an exhaust flange and a bearing flange receptacle, and a plurality of turbine scrolls of different sizes for selective installation into the turbocharger housing in dependence on a power of an engine. Each turbine scroll has an inlet zone and is connected to the bearing flange receptacle via a selected one of a plurality of different bearing flanges and to the exhaust flange via a selected one of a plurality of different exhaust links. The inlet zone of each turbine scroll is configured to complement a contour of an outlet zone of a standard manifold so that the turbine scrolls are selectively connectable via their inlet zone to the manifold to suit the engine power at hand.

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1. A modular exhaust gas assembly, comprising: a turbocharger housing having an exhaust flange and a bearing flange receptacle;a plurality of turbine scrolls of different sizes for selective installation into the turbocharger housing in dependence on a power of an engine, each said turbine scroll ha

1. A modular exhaust gas assembly, comprising: a turbocharger housing having an exhaust flange and a bearing flange receptacle;a plurality of turbine scrolls of different sizes for selective installation into the turbocharger housing in dependence on a power of an engine, each said turbine scroll having an inlet zone;a plurality of different bearing flanges; anda plurality of different exhaust links,wherein each of said turbine scrolls is connected to the bearing flange receptacle via a selected one of the plurality of different bearing flanges and to the exhaust flange via a selected one of the plurality of different exhaust links,wherein the inlet zone of each said turbine scroll is configured to complement a contour of an outlet zone of a standard manifold so that the turbine scrolls of different sizes are selectively connectable via their inlet zone to the manifold to suit the engine power at hand. 2. The exhaust gas assembly of claim 1, wherein the turbocharger housing is formed in one piece with a housing of the manifold. 3. The exhaust gas assembly of claim 1, wherein the turbocharger housing is welded to the manifold housing. 4. The exhaust gas assembly of claim 1, wherein the turbine scroll has an outlet zone which is coupled to the exhaust link via a sliding seat. 5. The exhaust gas assembly of claim 1, wherein the bearing flange is constructed to complement a configuration of the turbine scroll. 6. The exhaust gas assembly of claim 1, wherein the bearing flanges have a same outer diameter and are formed with collars of different widths for bearing upon an outer side of the bearing flange receptacle. 7. The exhaust gas assembly of claim 1, wherein the exhaust link is sized to embrace a tubular neck of the exhaust flange. 8. The exhaust gas assembly of claim 1, wherein the exhaust link is provided with a collar which is directed radially inwards. 9. The exhaust gas assembly of claim 8, wherein the collar of the exhaust link has an end region which is bent in a direction of the exhaust flange. 10. The exhaust gas assembly of claim 9, wherein the end region of the collar is provided with an annular groove for receiving a sealing element to provide a seal between an attachment zone of the turbine scroll and the exhaust link. 11. The exhaust gas assembly of claim 1, wherein the exhaust link is provided with a bellows to compensate a change in length between the turbine scroll and the exhaust flange. 12. The exhaust gas assembly of claim 1, wherein the exhaust link is connected with the exhaust flange by a material joint. 13. The exhaust gas assembly of claim 1, wherein the exhaust link is welded to the exhaust flange. 14. The exhaust gas assembly of claim 1, wherein the turbocharger housing and the manifold housing are made from one or more sheet metal parts. 15. The exhaust gas assembly of claim 1, further comprising an adapter for securing the turbocharger housing with the manifold housing to the engine. 16. The exhaust gas assembly of claim 1, wherein the turbocharger housing is secured to the engine having a cylinder head, with the manifold integrated in the cylinder head. 17. The exhaust gas assembly of claim 1, wherein the outlet zone of the manifold is provided with a groove for engagement of the inlet zone of the turbine scroll. 18. The exhaust gas assembly of claim 1, wherein the outlet zone of the manifold is provided with a recess in the form of a circumferential depression for engagement of the inlet zone of the turbine scroll.