Combination atomization test apparatus

By setting up a disturbance suppression path and a pressure stabilizing chamber in the combined atomization test device, the airflow disturbance is weakened, the airflow instability problem is solved, higher test accuracy and repeatability are achieved, and the stability and uniformity of the spray field are ensured.

CN121877404BActive Publication Date: 2026-06-26AECC HUNAN AVIATION POWERPLANT RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AECC HUNAN AVIATION POWERPLANT RES INST
Filing Date
2026-03-17
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The instability of airflow in existing atomization test equipment leads to poor accuracy and repeatability of combined atomization test results, and cannot effectively reflect the influence of stable airflow on spray characteristics under real working conditions.

Method used

A combined atomization test device was designed. By setting at least two directional turning sections between the air inlet seat and the test seat, the disturbance suppression path is weakened, the airflow disturbance is reduced, and a stable and uniform airflow is formed by using the pressure stabilizing cavity to ensure the consistency of the airflow at the cyclone inlet.

Benefits of technology

This improved the repeatability of atomization experiments and the accuracy of atomization performance testing of nozzle and cyclone combination, ensuring the stability and uniformity of the spray field and enhancing the true reproduction of test results.

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Abstract

The application discloses a combined atomization test device, belongs to the fuel atomization technical field, and comprises an experimental seat, a steady pressure cavity, a cyclone, a fuel nozzle and an air inlet seat. The cyclone is arranged on the experimental seat and is provided with a gas passage in communication with the steady pressure cavity. The fuel nozzle is provided with an oil injection port corresponding to the cyclone and is used for injecting atomized fuel oil, so that the atomized fuel oil and the cyclone inlet gas passage outlet airflow are combined to form an oil mist field. The air inlet seat is in communication with the experimental seat, and a disturbance suppression path is formed between the air inlet seat and the experimental seat. The disturbance suppression path comprises at least two direction turning sections and is used for weakening airflow disturbance. The application avoids the instability problem caused by the fact that the airflow directly enters the cyclone in the traditional test device, and improves the repeatability of the spray field in the atomization experiment.
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