A ducted electric aero-engine driven by a combination of rim and shaft

CN224452860UActive Publication Date: 2026-07-03HENAN YUKE POWER SYSTEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN YUKE POWER SYSTEM CO LTD
Filing Date
2025-09-18
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing ducted electric aero engines generally use a single shaft drive, which limits the size of the fan blades, reduces the air intake, and makes it difficult to increase thrust, thus failing to meet the thrust requirements of large aircraft.

Method used

The ducted electric aero-engine, driven by a combination of rim and shaft, provides a stable power source through a ring magnetic circuit and bearing structure, combined with the design of the motor stator and rubidium magnets. It also uses a brushless motor to drive the propeller for secondary acceleration, forming a dual-afterburning structure.

Benefits of technology

It significantly improves air intake and thrust, enhances the engine's thrust-to-weight ratio, reduces motor energy consumption, extends service life, and improves operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of aero-engine technology, and in particular to a ducted electric aero-engine driven by a combination of rim and shaft. It includes a duct body, with a duct mid-section fixedly connected to one end of the duct body. A main support frame is fixedly connected inside the duct body, and a bearing is installed inside the main support frame. A blade fixing frame is inserted inside the bearing, and an intake fan is installed inside the blade fixing frame. A neodymium magnet is fixedly connected to the outer circumferential surface of the blade fixing frame, and a motor stator is fixedly connected inside the main support frame. By using rim drive to set the rotation point of the intake fan to the blade tip, the effective driving torque is increased, allowing for a longer intake fan and significantly improving the airflow. Combined with a shaft-driven brushless motor driving the propeller, it achieves secondary afterburner, further accelerating the airflow and significantly improving the engine thrust and thrust-to-weight ratio, meeting the high thrust requirements of aircraft.
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