The torch-type electric ignition system successfully completed the ignition test.

Release Time:

2020-03-09

On July 12, 2018, the Torch Electric Ignition System, independently developed by Jiuzhou Cloud Arrow, successfully completed dozens of ignition tests. The Torch Electric Ignition System serves as the spark that ignites liquid rocket engines, comprising components such as an ignition gas cylinder, exciter, spark plug, ignition chamber, and ignition valve. Traditional pyrotechnic ignition methods typically allow for only 1–2 engine starts; in contrast, the Torch electric ignition approach offers a significant technical advantage, enabling multiple engine starts—often up to several dozen times. This technology is one of the critical capabilities that must be mastered in the development of reusable launch vehicles, representing a key trend in the evolution of rocket engine ignition systems. For instance, Europe's next-generation Ariane 6 launcher features the VINCI engine, while SpaceX, a renowned commercial aerospace company, is developing its Raptor liquid oxygen-methane engine, and Blue Origin’s BE-4 liquid oxygen-methane engine all incorporate the Torch-type electric ignition system. Through this round of testing, the ignition characteristics of the Torch electric ignition system under various mixture ratios were thoroughly understood, and the operational timing and reliability of the ignition system were rigorously evaluated. Additionally, the stable operating limits of the ignition system were identified. The successful completion of these independently developed Torch electric ignition system tests signifies that Jiuzhou Cloud Arrow has now mastered advanced ignition technology for liquid rocket engines, which holds immense significance for achieving multiple engine ignitions. This breakthrough lays a solid foundation for the development of reusable launch vehicles! The Torch electric ignition system will subsequently participate in the joint subsystem tests of the upcoming 10-ton engine, as well as full-scale thrust chamber tests, further validating the compatibility between the ignition system and both the primary and secondary subsystems of the engine.