Long-endurance oil-electric hybrid unmanned aerial vehicle
By designing a hybrid electric drone, the rotor system is directly driven by a fuel engine. Combined with the transmission system and clutch differential rotor technology, the problem of insufficient range of existing drones is solved, and a longer flight time is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 李宏利
- Filing Date
- 2025-09-16
- Publication Date
- 2026-07-21
AI Technical Summary
The short flight range of existing drones is due to the fact that the mechanical energy output by the fuel engine needs to be converted into electrical energy to drive the motor, resulting in significant energy conversion losses.
The drone adopts a hybrid electric design, which directly drives the rotor system through a fuel engine, using fuel to provide the main energy. The battery module assists in controlling the drone's attitude and balance. The transmission system enables synchronous operation of multiple rotors, and the rotor differential speed is achieved through a clutch and a secondary drive unit to reduce energy conversion losses.
This improved the drone's range, reduced energy conversion losses, and enabled longer flight times.
Smart Images

Figure CN224529040U_ABST