Rotary variable low-pollution combustion chamber and aircraft engine

By designing a rotary variable low-pollution combustion chamber and utilizing a linkage gear set to adjust the position and angle of the main combustion cylinder and the mixing cylinder, the problem of regulating the size of the main combustion zone and the mixing zone and the direction of the airflow is solved, thus achieving the optimal performance of the combustion chamber under different working conditions.

CN116518415BActive Publication Date: 2025-09-12AECC HUNAN AVIATION POWERPLANT RES INST
2 Cites 0 Cited by

Patent Information

Application Number
CN202310334012.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-31
Publication Date
2025-09-12
Estimated Expiration
2043-03-31

AI Technical Summary

Technical Problem

The sizes of the main combustion zone and mixing zone of the existing combustion chamber are difficult to control, and the flow directions of the main combustion and mixing airflows cannot be adjusted according to the engine operating conditions, resulting in the combustion chamber performance being unable to achieve optimal performance in all states.

Method used

It adopts a rotary variable low-pollution combustion chamber design, which drives the main combustion cylinder and mixing cylinder to rotate through a linkage gear set, changing the angle and position of the main combustion hole and mixing hole to adjust the area size and airflow direction of the main combustion zone and mixing zone.

Benefits of technology

The combustion chamber performance is optimized under different engine operating conditions, and the combustion efficiency and the overall performance of the combustion chamber are improved.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention discloses a rotary variable low-pollution combustion chamber, comprising a combustion chamber casing, a flame tube and a linkage gear set. A first mounting seat and a second mounting seat are provided on the combustion chamber casing. The first mounting seat is provided with a main combustion tube, and the main combustion tube is provided with a main combustion hole for discharging high-pressure air. The second mounting seat is provided with a mixing tube, and the mixing tube is provided with a mixing hole for discharging high-pressure air. The flame tube is arranged in the combustion chamber casing, and a first mounting hole and a second mounting hole are provided on the flame tube. The main combustion tube passes through the first mounting hole so that the main combustion hole is located in the flame tube, and the mixing tube passes through the second mounting hole so that the mixing hole is located in the flame tube. The linkage gear set is arranged on the combustion chamber casing, and the linkage gear set rotates circumferentially around the combustion chamber casing to drive the main combustion tube to rotate with the central axis of the first mounting hole as the axis; or / and to drive the mixing tube to rotate with the central axis of the second mounting hole as the axis.
Need to check novelty before this filing date? Find Prior Art