An axially staged high temperature rise reheat combustor
By employing an axial staged combustion organization method in the recirculation combustion chamber, combined with a radial vortex generator and centrifugal nozzles, the problems of high temperature rise and wide operating range of small and medium-sized aero engines have been solved, achieving high efficiency, stability and low pollution emissions in the combustion chamber.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SICHUAN LINGJI PROPULSION TECHNOLOGY CO LTD
- Filing Date
- 2026-04-24
- Publication Date
- 2026-07-17
AI Technical Summary
The recirculation combustion chamber of small and medium-sized aero engines has problems such as low engine power-to-weight ratio, narrow stable operating range, poor combustion stability at low power and exhaust smoke at high power, making it difficult to meet the requirements of high temperature rise and wide operating range.
The combustion organization adopts an axially graded combustion method, dividing the recirculation combustion chamber into a duty stage and a main combustion stage. The duty stage uses a radial swirler combined with a centrifugal nozzle, while the main combustion stage uses an evaporator and a direct nozzle. By refining the combustion state, matching different power states, the operating range is widened and the combustion chamber temperature rise and stability are improved.
It achieves high temperature rise and wide operating range for small and medium-sized aero engines, improves combustion chamber stability and combustion efficiency, reduces pollution emissions, and meets the design requirements of high temperature rise combustion chambers.
Smart Images
Figure CN122408084A_ABST