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概述了用自制的脉宽调制电源供电 ,以氮氢混合气 (模拟肼的分解产物 )作推进剂的电弧加热发动机性能试验的情况及初步结果。试验表明 :自制的脉宽调制电源工作稳定 ;在混合气作推进剂的情况下 ,DHSL- 1和 DHSL- 2发动机可以正常运行 ,但由于发动机的高温密封性能不好 (漏气 ) ,测得的性能数据偏小。
The performance and initial results of the arc-heating engine performance tests using a self-made pulse-width modulated power supply and using a mixture of nitrogen and hydrogen as a propellant to simulate hydrazine are summarized. The experiments show that the self-made pulse-width modulation power supply is stable, and the DHSL-1 and DHSL-2 engines can operate normally under the condition of mixed gas as the propellant. However, due to poor sealing performance of the engine at high temperature The performance data is too small.