COOLING-AIR INJECTION CASING FOR A TURBOMACHINE TURBINE

The present invention relates to a cooling-air injection casing (2) for cooling a bladed rotor disc of a turbine, in particular a high-pressure turbine, of a turbomachine, this casing extending around a longitudinal axis (X-X') and being traversed by at least one channel (20) forming an air inj...

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Bibliographic Details
Main Authors BOISNAULT, Franck Davy, LEMONNIER, Jérôme Claude George, VAN NOORT, Antoine Bruno
Format Patent
LanguageEnglish
French
German
Published 31.07.2024
Subjects
ADDITIVE MANUFACTURING TECHNOLOGY
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
AIR INTAKES FOR JET-PROPULSION PLANTS
BLASTING
CASTING
COMBUSTION ENGINES
CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
ENGINE PLANTS IN GENERAL
GAS-TURBINE PLANTS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MACHINES OR ENGINES IN GENERAL
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
PERFORMING OPERATIONS
POWDER METALLURGY
STEAM ENGINES
TRANSPORTING
WEAPONS
WORKING METALLIC POWDER
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Summary:The present invention relates to a cooling-air injection casing (2) for cooling a bladed rotor disc of a turbine, in particular a high-pressure turbine, of a turbomachine, this casing extending around a longitudinal axis (X-X') and being traversed by at least one channel (20) forming an air injector, the channel (20) comprising an inlet mouth (201) and an outlet mouth (202). This casing is noteworthy in that the channel (20) comprises a primary section (203) which extends in an axial plane (P) from the inlet mouth (201) to an elbow (206), and a secondary section (207) which extends from this elbow (206) to the outlet mouth (202), the secondary section (207) having a progressive variation of its orientation with a tangential component between the elbow (206) and the outlet mouth (202), in that the channel (20) has a reduction in cross section between the inlet mouth (201) and a neck (204), and in that the channel (20) has at least one corrugation (205) in its primary section (203), such that the outlet mouth (202) is situated closer to the longitudinal axis (X-X') than the inlet mouth (201).
Bibliography:Application Number: EP20220789280