Turbine module for a turbomachine

A turbine module for a turbomachine, the turbine module comprising:

• a main channel to guide a main flow through the turbine module;
• a stator vane comprising a stator airfoil and an outer platform;
• a cavity extending at least partly radially outside of the stator airfoil;
• the cavity comprising an inlet opening for guiding a part of the main flow into the cavity and an outlet for a reinjection of the part of the main flow from the cavity (30) into the main channel;
• wherein the cavity comprises a number n of inlet openings, where n≥2, and a number m of outlet openings, where m≥1, wherein circumferentially adjacent inlet openings are separated by ribs;
• wherein an inner wall of the outer platform defines the main channel radially, and wherein the inlet opening is arranged on a radial position radially outside of the inner wall surface of the outer platform.

A turbine module for a turbomachine, the turbine module comprising:

• a main channel to guide a main flow through the turbine module;
• a stator vane comprising a stator airfoil and an outer platform;
• a rotor blade downstream of the stator vane;
• a cavity extending at least partly radially outside of the stator airfoil;
• the cavity comprising an inlet opening for guiding a part of the main flow into the cavity and an outlet for a reinjection of the part of the main flow from the cavity (30) into the main channel,
• wherein an inner wall of the outer platform defines the main channel radially, and wherein the inlet opening is arranged on a radial position radially outside of the inner wall surface of the outer platform,
• wherein at least one outlet opening of the cavity is arranged in an outer air seal cavity of the rotor blade downstream of the stator vane.

A turbine module for a turbomachine, the turbine module comprising:

• a main channel to guide a main flow through the turbine module;
• a stator vane comprising a stator airfoil and an outer platform;
• a cavity extending at least partly radially outside of the stator airfoil;
• wherein the cavity is circumferentially defined between two neighboring stator airfoils, the stator vane belonging to a stator segment, wherein the cavity is circumferentially defined within the stator segment;
• the cavity comprising an inlet opening for guiding a part of the main flow into the cavity and an outlet for a reinjection of the part of the main flow from the cavity (30) into the main channel;
• wherein an inner wall of the outer platform defines the main channel radially, and wherein the inlet opening is arranged on a radial position radially outside of the inner wall surface of the outer platform.

A turbine module for a turbomachine, the turbine module comprising:

• a main channel to guide a main flow through the turbine module;
• a stator vane comprising a stator airfoil and an outer platform;
• a cavity extending at least partly radially outside of the stator airfoil;
• the stator vane belonging to a stator segment, wherein the cavity is circumferentially defined within the stator segment;
• the stator segment comprises a circumferentially offset further cavity, which has a further inlet opening and a further outlet opening, wherein the cavities are, apart from their respective communication with the main channel, fluidically isolated from each other;
• the cavity comprising an inlet opening for guiding a part of the main flow into the cavity and an outlet for a reinjection of the part of the main flow from the cavity (30) into the main channel;
• wherein an inner wall of the outer platform defines the main channel radially, and wherein the inlet opening is arranged on a radial position radially outside of the inner wall surface of the outer platform.