一种带集气机匣的涡轮机匣结构
By designing a turbine casing structure with an air intake casing, the problem of not being able to simultaneously achieve controllable casing deformation and reliable air supply to adjustable guide vanes in small bypass ratio engines was solved. This resulted in efficient clearance control and cooling, improving the engine's multi-state adaptability and performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AECC SHENYANG ENGINE RES INST
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the turbine casing structure cannot simultaneously achieve controllable casing deformation and reliable air supply to adjustable guide vanes, especially in low bypass ratio engines, and cannot meet the requirements of multi-state use.
Design a turbine casing structure with a gas collecting casing, including a high-pressure turbine casing, a low-pressure turbine casing, an inner casing and a gas collecting casing. The cavity is divided into two gas collecting chambers by the gas collecting casing, and the adjustable temperature gas and cooling gas are independently controlled by the guide plate and sealing structure, so as to supply gas and cool the adjustable low-pressure guide vanes and the high-pressure turbine working blades respectively.
It enables cooling of adjustable guide vanes and clearance control of high-pressure turbine blades within a small space, improving engine performance and reliability and adapting to engine usage requirements under different conditions.
Smart Images
Figure CN120867853B_ABST