Inflow-Driven Valve System for Pulse Detonation Engines
Inflow-Driven Valve System for Pulse Detonation Engines
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DOI：
10.2514/1.47421
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发表时间：
2011-05
影响因子：
1.9
通讯作者：
K. Matsuoka;Jun Yageta;T. Nakamichi;J. Kasahara;T. Yajima;T. Kojima
中科院分区：
文献类型：
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作者：
K. Matsuoka;Jun Yageta;T. Nakamichi;J. Kasahara;T. Yajima;T. Kojima
DOI：10.2514/1.47421提出了一种用于脉冲爆震发动机的新阀系统，其使用简单的流入驱动活塞中断阀。该阀利用气体焓产生间歇流动，不需要电源和控制装置，阀单元流量较大，推力随供给压力变化灵敏，稳定工作的供给压力范围较宽，在单活塞进流驱动阀的流量测量实验中，工作频率和质量流量是可预测的，在三活塞进流驱动阀的推力测量实验中，验证了脉冲爆震发动机在较宽供气压力范围内的稳定工作，并测量了其时均推力，最大时均推力为22.6N（乙烯）供气压力为0.95MPa，氧气供气压力为1.9MPa，在乙烯供气压力为0.8MPa，供氧压力1.6MPa。
DOI: 10.2514/1.47421 A new valve system for a pulse detonation engine that uses a simple inflow-driven piston-interrupting valve is proposed. This valve can generate an intermittent flow by using gas enthalpy, so no power source or control unit is necessary.Themass flowpervalveunitmassiscomparativelylarge,thethrustchangewithchangingsupplypressure isveryresponsive,andtheinflowsupplypressurerangeforstableoperationiswide.Inamass flowratemeasurement experimentusingasingle-pistoninflow-drivenvalve,theoperationfrequencyandmass flowratewerepredictable.In athrustmeasurementexperimentwithapulsedetonationrocketengineusingathree-pistoninflow-drivenvalve,the pulse detonation engine’s stable operation over a wide range of supply pressure was confirmed and the timeaveragedthrustwasmeasured.Themaximumtime-averagedthrustof22.6Nwasachievedatafuel(ethylene)supply pressureof0.95MPaandanoxygensupplypressureof1.9MPa.Themaximumspecificimpulseof279swasachieved at an ethylene supply pressure of 0.8 MPa and an oxygen supply pressure of 1.6 MPa.