Patent ID: 8647056

Claim:
A variable geometry turbomachine comprising: a housing which defines a bearing housing and an adjacent turbine housing; a turbine wheel supported in the turbine housing for rotation about a turbine axis; an annular inlet passage upstream of said turbine wheel defined between respective inlet surfaces of first and second wall members, at least one of said first and second wall members being moveable by an actuation element along the turbine axis to vary the size of the inlet passage; an array of vanes extending across the inlet passage, said vanes being connected to said first wall member; a complementary array of vane slots defined by the second wall member, said vane slots being configured to receive said vanes to accommodate relative movement between the first and second wall members; wherein the second wall member comprises a shroud which defines said vane slots; the second wall member being supported by a generally ring-shaped support member; wherein a portion of the support member is configured to be received by a corresponding mounting feature such that the support member is retained by the mounting feature; wherein the mounting feature is provided by one of the bearing housing, the turbine housing or the actuation element; and wherein the shroud is fixed to the support member such that axial movement of the shroud relative to the support member is substantially prevented.