Electric engine, electric propulsion device and aircraft

By embedding the fan part inside the drive motor, the problem of excessive axial size of the electric propulsion device is solved, reducing the resistance of the aircraft.

CN119190372BActive Publication Date: 2025-02-21SICHUAN AEROFUGIA TECH DEV CO LTD
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Patent Information

Application Number
CN202411733205.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-02-21
Estimated Expiration
2044-11-29

AI Technical Summary

Technical Problem

The axial dimensions of the electric propulsion device are too long, causing the aircraft to increase drag during flight.

Method used

By embedding at least part of the fan inside the drive motor, the stack size of the fan and drive motor in the axial direction of the power motor is shortened, thereby shortening the axial dimension of the electric engine.

Benefits of technology

The axial dimension of the electric propulsion device is shortened, reducing the resistance of the aircraft during flight.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiments of the present application provide an electric engine, an electric propulsion device and an aircraft, and relate to the field of aircraft technology. The electric engine includes a power motor, a radiator, a drive motor and a fan. The radiator is used to dissipate heat from the power motor. The drive motor and the power motor are respectively located on both sides of the radiator along the axial direction of the power motor. The drive motor is provided with a receiving through hole, and the radiator covers one side of the receiving through hole. At least part of the fan is located inside the receiving through hole, and the fan is connected to the drive motor by transmission. In this way, the axial dimension of the electric propulsion device is shortened, and the resistance encountered by the aircraft during flight is reduced.
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Citation Information

Patent Citations

  • Electric propulsion system and aircraft

    CN116280330A

  • Drive device and drive device unit

    CN118159471A