关键词: 发动机控制系统;液体推进剂火箭发动机

Abstract: Based on many year cavitation venturi design experience, the effects of the venturi throat contour on its pressure loss coefficient are presented in this paper. The improvement design and thus achieved performance upgrading of two main cavitation venturies used in a large liquid rocket engine is also presented.

Key words: Engine control system;Liquid propellant rocket engine