Turbine arrangement with separate guidance device

A turbine arrangement (100) for a supercharging device (10), comprising:

• a turbine housing (110) which defines a turbine spiral (120) and a turbine outlet (150), wherein the turbine spiral (120) comprises a first volute (122) and a second volute (124) which are separated from one another in terms of flow by a partition (126);
• a turbine wheel (140) which is arranged in the turbine housing (110) between the turbine spiral (120) and the turbine outlet (150);
• and
• a guide device (200) having:
• a carrier ring (210), and
• multiple guide blades (220) which are arranged on the carrier ring (210) non-rotatably fixedly in a predetermined orientation;
• wherein the guide device (200) is arranged in an inflow channel (130) between the turbine spiral (120) and the turbine wheel (140) such that, during operation, fluids are conducted from the turbine spiral (120) through the inflow channel (130) over the guide blades (220) onto the turbine wheel (140);
• wherein the carrier ring (210) comprises a bearing housing side ring element (212) and a partition wall ring element (218), wherein the partition wall ring element (218) extends from the partition (126) as far as a radially inner end (132) of the inflow channel (130) as an elongation of the partition (126), such that the inflow channel (130) is separated into two axially adjacent inflow channel sections (130a, 130b);
• wherein the guide blades (220) are each divided into a first blade section (220a) in the first inflow channel section (130a) and into a second blade section (220b) in the second inflow channel section (130b);
• wherein the guide blades (220) of the first blade section (220a) extend from the bearing housing side ring element (212) to the partition wall ring element (218);
• wherein the guide blades (220) of the second blade section (220b) extend from the partition wall ring element (218) towards the turbine housing (110);
• and
• wherein said turbine arrangement (100) further comprises a spring element (230) which is arranged at a bearing housing side axially adjacent to the carrier ring (210) and which is designed to brace the guide device (200) in the axial direction (22) from the bearing housing side toward and against the turbine housing (110).