Variable Geometry Turbine

Abstract: A nozzle ring for a variable geometry turbine comprises: a generally annular wall; an inner flange; an outer flange; and two protrusions. The inner flange is generally perpendicular to the generally annular wall and extends from a radially inner edge of the generally annular wall. The outer flange is generally perpendicular to the generally annular wall and extends from a radially outer edge of the generally annular wall. The two protrusions extend from one of the inner or outer flange towards the other one of the inner or outer flange. At least one of the two protrusions extends only partially towards the other one of the inner or outer flange. The two protrusions define a first gap therebetween. The generally annular wall and the two protrusions define a second gap between the generally annular wall and both of the two protrusions. In use, the second gap receives an arcuate head portion of a support and the first gap receives in intermediate portion of the support. The nozzle ring may be suitable for use in a variable geometry turbocharger.

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