Additively Manufactured Turbine Rotor Blade with a Platform Having Nonlinear Cooling Channels

The manufacturing of turbine rotor blades with an overall impact cooling structure through additive manufacturing technology solves the problem of difficulty in achieving full-surface cooling in the prior art, and achieves efficient cooling and improvement of structural strength.

CN113153441BActive Publication Date: 2025-06-03GENERAL ELECTRIC TECH GMBH
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Patent Information

Application Number
CN202011503991.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-01-22
Filing Date
2020-12-18
Publication Date
2025-06-03
Estimated Expiration
2040-12-18

AI Technical Summary

Technical Problem

It is difficult to achieve full-surface cooling under high temperature conditions for existing turbine rotor blades, especially when the rotating blades are affected by centrifugal force, the impact cooling effect is poor.

Method used

The turbine rotor blade with an integral impact cooling structure is manufactured using additive manufacturing technology. The structure includes a hollow body and a plurality of cooling channels, through which the coolant flow impacts the surface of the blade, achieving full surface cooling.

Benefits of technology

Through additive manufacturing technology, full surface cooling of turbine rotor blades is achieved without increasing manufacturing complexity and cost, improving cooling efficiency and providing structural strength and weight reduction effects.

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Abstract

The present invention is entitled a turbine rotor blade with a platform having non-linear cooling channels for additive manufacturing. The present invention provides a turbine rotor blade (120) that is additively manufactured and includes an airfoil body (122) having a radially extending chamber (134) for receiving a coolant (236) flow. A platform (150) extends laterally outward relative to the airfoil body (122) and terminates at at least one bevel (230, 230PS, 230SS). A cooling circuit (234) is located within the platform (150) and is in fluid communication with a source of coolant (236) flow. Cooling channels (172, 240) are located in the platform (150) and are in fluid communication with the cooling circuit (234). The cooling channels (172, 240) extend from the cooling circuit (234) through at least one bevel (230, 230PS, 230SS) of the platform (150) to an outlet in a non-linear configuration, thereby providing improved cooling compared to linear cooling channels (172, 240).
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