YF-40

YF-40B
原產國 中国
首次試車1995年6月1日
設計者航天推进技术研究院
相關產品長征一號丁、长征四号系列
現狀生产中
液態火箭發動機
推進劑N2O4 / UDMH
混合比2.14
系統燃气发生器
構造
燃燒室2
喷管面积比55
性能
推力（真空）103 kN（23,000 lbf）
燃燒室壓力4.6 MPa（670 psi）
比衝（真空）303秒（2.97公里每秒）
燃燒時間412s
尺寸
長度120厘米（47英寸）
直徑63厘米（25英寸）
淨重83公斤（183磅）
用於
長征一號丁運載火箭二级、长征四号系列火箭三级
參考文獻
參考文獻[1][2][3][4][5][6]

YF-40是中华人民共和国研制的一型液体火箭发动机。该发动机以偏二甲肼/四氧化二氮为推进剂，采用燃气发生器循环中燃烧N2O4和UDMH。 它具有双万向节燃烧室。

YF-40起初是作为长征一号丁火箭的二级发动机而研制的[6]。其目前则多用于长征四号系列火箭的第三级[1][3][7]。

参考文献

  1. ^ 1.0 1.1 Long March. Rocket and Space Technology. [2015-07-08]. （原始内容存档于2023-04-08）. 
  2. ^ YF-40. Encyclopedia Astronautica. [2015-07-15]. （原始内容存档于2015-08-24）. 
  3. ^ 3.0 3.1 Gunter Dirk Krebs. CZ-4 (Chang Zheng-4). Gunter's Space Page. [2015-07-15]. （原始内容存档于2014-10-22）. 
  4. ^ Sutton, George Paul. Liquid Rocket Propellant Engines in the People's Republic of China. History of Liquid Propellant Rocket Engines. AIAA. November 2005: 873 [2015-07-15]. ISBN 978-1563476495. 
  5. ^ Mowthorpe, Matthew. Chinas Military Space Program. The Militarization and Weaponization of Space. Lexington Books. 2004: 90 [2015-07-15]. ISBN 978-0739107133. 
  6. ^ 6.0 6.1 Chang Zheng-1 (Long March-1). SinoDefence. [2015-07-15]. （原始内容存档于2015-07-16）. 
  7. ^ Harvey, Brian. Launch Centers Rockets and Engines. China's Space Program — From Conception to Manned Spaceflight. Springer Science & Business Media. 2004: 231 [2015-07-15]. ISBN 978-1852335663. 


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