Turbine Housings For A Turbocharger, Turbine And Turbocharger

Abstract: There is disclosed a turbine housing (2) for a turbocharger. The turbine housing comprises a flange (4) and a volute 6. The flange (4) has an engagement surface (14) and a first inlet opening (12) in the engagement surface (14). The volute (6) extends around an axis (22) and defines at least part of a flow passage (24) through the turbine housing (2). The flow passage (24) extends from the first inlet opening (12) at a first end of the flow passage (24). The engagement surface (14) of the flange (4) is defined by a periphery of material 18 which extends around the first inlet opening 12 between the first inlet opening (12) and an outer edge 16 of the engagement surface (14). A thickness (64) of a first portion (26) of the periphery of material (18), at a radially inner side (27) of the first inlet opening (12), is greater than a thickness (66) of a second portion (28) of the periphery, at a radially outer side (29) of the first inlet opening (12), along at least a full extent of a radially inner edge (34) of the first inlet opening (12). There are also disclosed a turbine and a turbocharger.

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