力擎二号110吨针栓发动机近日完成首台交付

科技日报2025-02-07

2月6日，从中科宇航技术股份有限公司获悉，该公司自主研制的力擎二号110吨针栓发动机近日完成首台交付，力擎二号液氧煤油发动机作为力箭系列可重复使用火箭一级发动机，使用液氧煤油推进剂组合，采用燃气发生器循环、高压氮气起动、TEA/TEB点火剂点火、泵后双向摇摆、再生冷却加双环带冷却方式等技术，燃气发生器及推力室均采用针栓喷注技术，发动机推力变比50%至100%，起动次数为3次，地面推力可达110吨。...

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