Turbine stator assembly including an inner shroud having an upstream portion and a downstream portion assembled by axial translation

By designing an inner shield divided into the upstream and downstream parts, and using the connecting device to ensure its axial translation state during the assembly process, the problem of poor sealing of ventilation circuits and inappropriate fit for conventional frames during the installation of the turbine stator assembly is solved, and convenient installation and good sealing of the stator assembly are achieved.

CN115038855BActive Publication Date: 2025-03-28SAFRAN AIRCRAFT ENGINES SAS
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Patent Information

Application Number
CN202180010698.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-01-23
Filing Date
2021-01-14
Publication Date
2025-03-28
Estimated Expiration
2041-01-14

AI Technical Summary

Technical Problem

The existing turbine stator assembly has problems with poor ventilation circuit sealing and unsuitable for conventional turbine mechanism frames during installation.

Method used

A stator assembly is designed, including an outer shield, an inner shield and a blade, which is divided into an upstream portion and a downstream portion, which is connected to each other by a first and second connecting means, ensuring that the upstream portion and the downstream portion remain axially translated during assembly, thereby achieving good sealing and adaptation to conventional turbine frames.

Benefits of technology

It realizes the convenient installation of the stator assembly in the turbine and the good ventilation loop sealing, adapts to conventional turbine mechanism frames, and improves the overall performance of the assembly.

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Abstract

The invention relates to a stator wheel (20) for a turbine of a turbomachine. The wheel (20) comprises an inner shroud (22) formed by an upstream portion (23) and a downstream portion (24) configured to be assembled with blades (25) by axial translation in respective directions.
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