The invention relates to a pulse detonation driven distributed propulsion system, which combines the advantages of high propagation speed, self-pressurization, low entropy increase and the like of pulse detonation combustion with the advantage of high propulsion efficiency of the distributed propulsion system, and compressed air of an outer culvert fan participates in pulse detonation combustion in a working medium transmission pipeline. High-temperature and high-pressure fuel gas is formed to impact a propelling turbine in the distributed propeller to do work, and then a ducted fan is driven to generate thrust. The development difficulty of high-energy-density energy storage equipment and a super-power motor in a pure/hybrid electric type distributed propulsion system is effectively avoided, and the problems that in a mechanical transmission type distributed propulsion system, a transmission structure is complex in design, and mechanical structures are constrained are solved. And meanwhile, the problems of flow loss, low heat regeneration efficiency and the like in a pipeline and a heat regeneration device in a heat regeneration type working medium driving distributed propulsion system are solved. The turbine output work is greatly improved, the limit bypass ratio of the distributed propulsion system is further expanded, and the oil consumption rate is reduced.
本发明涉及一种脉冲爆震驱动的分布式推进系统,其通过将脉冲爆震燃烧具有传播速度快、自增压、熵增低等优点与分布式推进系统推进效率高的优点相结合,外涵风扇压缩空气在工质传输管路内参与脉冲爆震燃烧,形成高温高压燃气冲击分布式推进器中的推进涡轮做功,进而带动涵道风扇产生推力。有效规避了纯/混电式分布式推进系统中高能量密度储能设备及超大功率电机的研制难题,避免了机械传动式分布式推进系统中传动结构设计复杂、机械结构间存在约束的问题,同时还解决了回热式工质驱动分布式推进系统中管路和回热装置内存在的流动损失、回热效率较低等问题。极大地提高涡轮输出功,进一步拓宽分布式推进系统极限涵道比、降低耗油率。
Distributed propulsion system driven by pulse detonation
一种脉冲爆震驱动的分布式推进系统
2024-09-10
Patent
Electronic Resource
Chinese
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