METHOD FOR MANUFACTURING A PIPELINE OF COMPLEX CONFIGURATION FOR A GAS TURBINE ENGINE BY AN ADDITIVE METHOD Russian patent published in 2023 - IPC F02C7/00 B22F5/12 B33Y50/00 

FIELD: engine production.

SUBSTANCE: method for manufacturing a pipeline of complex configuration for a gas turbine engine by the additive method includes the creation of a three-dimensional model of the pipeline (1) based on the initial data. The method comprises the stage of laying a pipeline route with account for the bypass zones, the stage of creating a library of parts, assembly units of the pipeline and fastening elements, the stage of assessing the process feasibility of manufacturing the pipeline, and the stage of forming the final model of the pipeline. The stage of laying the pipeline route (1), with account for the bypass zones, includes determining the minimum clearance between the engine and the application object along a pre-built minimum trajectory between the start and end points of the pipeline route. Contours of passage sections (6) of the pipeline are created. A preliminary tracing of the pipeline contour (1) is carried out by connecting the reference points (7) of the outer contour of the pipeline sections, ensuring minimum gaps between the pipeline route (1) and the application object or the engine, taking into account the preliminary hydraulic calculation of the line based on the ratioΔ R_p.c <Δ R_p.c.all, whereΔ R_p.c is actual pressure loss,Δ P_p.c.all is allowable pressure loss in the line. The geometry of the pipeline (1) is profiled along the contour of the installation site. The thickness of the pipe wall is determined, then the pipeline is calculated for strength at various points. A central stiffener is designed in places (3) of the junction of the pipeline (1). The stage of forming the final pipeline model (1) includes the final version of the pipeline routing, taking into account the three-dimensional hydraulic calculation. Then, in accordance with the created three-dimensional model, the parts of the pipeline route are manufactured by an additive method, followed by their assembly.

EFFECT: reducing the length of the pipeline route of the gas turbine engine.

1 cl, 7 dwg