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    • 4. 发明授权
    • Constant thrust hybrid rocket motor
    • 恒力推力混合火箭发动机
    • US4424679A
    • 1984-01-10
    • US300766
    • 1981-09-10
    • Allen L. Holzman
    • Allen L. Holzman
    • F02K9/58F02K9/72F02K9/56
    • F02K9/58F02K9/72
    • A constant thrust hybrid rocket motor having a valve assembly therein which utilizes a fixed diameter orifice in combination with a valve having a variable sized opening therein in order to provide a regulated flow of oxidizer to the combustion chamber of the rocket motor. By selecting the size of the fixed diameter orifice such that it is slightly less than required to yield oxidizer flow at highest density oxidizer conditions (lowest temperature) and selecting the size of the combination of the fixed orifice and the open position of the variable opening such that it is slightly greater than required at lowest density oxidizer conditions (highest temperature), the operation of the rocket motor can be reliably maintained over a wide temperature range and without experiencing wide pressure variations by regulating the size of the variable opening.
    • 一种具有阀组件的恒定推力混合式火箭发动机,其中使用固定直径的孔与其中具有可变大小的开口的阀组合,以便向火箭发动机的燃烧室提供调节的氧化剂流。 通过选择固定直径孔口的尺寸,使其略低于在最高密度氧化剂条件(最低温度)下产生氧化剂流量所需的量,并选择固定孔口与可变开口的打开位置的组合的尺寸, 在最低密度氧化剂条件(最高温度)下略高于所需要的温度,可以在宽的温度范围内可靠地维持火箭发动机的运行,并且通过调节可变开口的尺寸不会产生较大的压力变化。