回收循环飞行器涡轮机

By designing the volute assembly with opposite winding directions and spaced-out duct structures, the problems of high heat exchange risk and high structural modification cost in volute integration were solved, achieving efficient volute integration and low-impact turbine retrofitting.

CN115867723BActive Publication Date: 2026-07-17SAFRAN HELICOPTER ENGINES

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SAFRAN HELICOPTER ENGINES
Filing Date
2021-06-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies for integrating volute components into turbines present significant risks of heat exchange and high costs associated with modifying the turbine structure, especially when converting conventional cycle turbines into regeneration cycle turbines.

Method used

The volute assembly is designed with opposite winding directions, and the first port of the volute is formed by spaced-apart duct sections, with the smallest cross-section of each duct located at the larger cross-section of the other duct, limiting heat exchange and reducing the impact on the turbine structure.

Benefits of technology

The overall dimensions of the volute were optimized, limiting heat exchange between fluids, reducing the impact on the turbine, facilitating volute integration, and minimizing modifications to the turbine structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

飞行器涡轮机(10),包括:离心式压缩机(14);燃烧室(24),燃烧室由压缩机经由扩散器(34)和整流器(36)供应;和热交换器(38),交换器包括:第一回路(38a),第一回路被供应有来自涡轮机的废气;和第二回路(38b),第二回路通过蜗壳(40a,40b)一方面连接到扩散器(34)的出口(34b),另一方面连接到整流器(36)的入口(36a),蜗壳(40a,40b)具有相反的缠绕方向,使得蜗壳的连接到交换器(38)的连接端口彼此独立并且大致在直径上相对,从而使得每个导管的最小横截面(S2)位于另一个导管的较大横截面处。
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