关键词: 火箭发动机点火器;固体推进剂点火;点火药;烟火剂;内弹道性能;性能预测

Abstract: Instantaneous equilibrium pressure method is used in this paper to analysis the internal ballistics of pyrogen-type igniters. A concept of igniter heat loss coefficient is also presented. The relationship among igniter charge mass, nozzle area and igniter chamber pressure is also established. The calculation results are satisfactory with test date. Two important conclusions are drawn from the caculation results. One shows that the ignition acceleration basket is an important and reasonable part in igniter, another shows a kind of optimal igniter charge configuration.

Key words: Rocket ignitor;Solid propellent ignition;Interior ballistic performance;Ignition powder, Pyrotechnic compound;Performance prediction