北京航空航天大学学报 ›› 2010, Vol. 36 ›› Issue (10): 1162-1165.

• 论文 • 上一篇    下一篇

N2O/C3H8点火器初步实验

王栋, 郭红杰, 梁国柱, 刘尹   

  1. 北京航空航天大学 宇航学院, 北京 100191
  • 收稿日期:2009-08-20 出版日期:2010-10-31 发布日期:2010-11-12
  • 作者简介:王 栋(1983-),男,江西吉安人,博士生,wdjxsscx@163.com.

Preliminary experimental investigation on nitrous oxide/propane igniter

Wang Dong, Guo Hongjie, Liang Guozhu, Liu Yin   

  1. School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2009-08-20 Online:2010-10-31 Published:2010-11-12

摘要: 为了研究氧化亚氮与丙烷的点火特性,首次提出了N2O/C3H8火炬式点火方案,设计、加工了点火器,并组建了点火实验系统,在不同的流量和余氧系数下进行了点火实验.结果表明:点火方案可行,喷嘴设计合理,雾化效果和余氧系数是决定点火器能否点燃的关键,余氧系数在0.222~0.321内点火器能可靠地被重复点燃并形成稳定的点火火炬.实验为N2O/C3H8点火器的进一步研究提供了参考,并为以后实现该点火器对发动机的成功点火奠定了基础.

Abstract: To investigate the ignition characteristics of nitrous oxide/propane, the torch igniter scheme of N2O/C3H8 was proposed initially. An igniter was designed and manufactured, and the experimental system was designed. The hot-tests under different condition of mass flow and excess-oxidizer coefficient show that the scheme is feasible, injector structure is reasonable, the spray quality and the excess-oxidizer coefficient are the key for successful ignition, and the igniter is able to generate multiple ignition and produce ignition torch successfully within the excess-oxidizer coefficient range 0.222~0.321. The experiment offers reference for the further study and establishes the foundation for achieving N2O/C3H8 motor ignition directly by this igniter.

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