Aircraft engine hybrid electric power system and design method thereof
By designing a built-in generator-driven duct fan and liquid hydrogen cooling system in the aircraft engine, the problems of increased bypass ratio and reduced fuel consumption in the prior art are solved, and efficient power system operation and energy utilization are achieved.
CN119659956AActive Publication Date: 2025-03-21AECC SHENYANG ENGINE RES INST
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Patent Information
- Application Number
- CN202510191992.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2045-02-21
AI Technical Summary
Technical Problem
The existing aircraft engine power system is difficult to achieve high bypass ratio and low fuel consumption, and there is a lack of efficient motor equipment cooling solutions.
Method used
A hybrid power system for aircraft engines is designed to extract power from the engine through a built-in generator, drive duct fans, and use liquid hydrogen as a cooling medium to replenish charging energy through a hydrogen fuel cell.
Benefits of technology
Significantly improve the equivalent bypass ratio of the power system, reduce the engine fuel consumption rate, ensure efficient operation of the power system, and ensure the aircraft's range and air leave time through comprehensive energy utilization.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the technical field of design of aircraft engine power systems, and particularly relates to an aircraft engine hybrid electric power system and a design method thereof. A built-in generator is designed to extract power from an aero-engine and supply power to drive a ducted fan, so that the equivalent bypass ratio of the power system can be greatly improved, and the power efficiency is improved. According to the present invention, the oil consumption level of the engine is reduced, the high heat sink liquid hydrogen is adopted as the cooling medium to cool the motor equipment so as to effectively meet the efficient work requirement of the power system, the hydrogen fuel cell is adopted to generate power by using the gas hydrogen so as to supplement the power consumption requirement of the power system, and the power load of the generator can be reduced; the comprehensive utilization of energy is realized, and the voyage and the airborne time of the aircraft are ensured.
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