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    • 3. 发明授权
    • Hybrid helium heater pressurization system and electrical ignition
system for pressure-fed hybrid rockets
    • 混合氦加热器加压系统和压力式混合火箭的电子点火系统
    • US5722232A
    • 1998-03-03
    • US322781
    • 1994-10-13
    • H. Stephen Jones
    • H. Stephen Jones
    • F02K9/50F02K9/72
    • F02K9/72F02K9/50
    • A system for pressurizing a liquid oxygen tank (20) in a pressure-fed hybrid rocket (100) provides pressure at a first end of the tank (20) so that liquid oxygen can exit the second end. A hybrid heater (50) creates the pressure by mixing gaseous oxygen with the solid fuel (51) in the hybrid heater (50) to create an extremely high temperature. Helium is then mixed with the combustion products via an inlet (60) and this hot, inert mixture enters the liquid oxygen tank (20) via a diffuser (70). A second hybrid heater (90) pressurizes the gaseous helium sphere (40) to reduce the pressure decay caused by the withdrawal of the helium. Two of the hybrid heaters (50 and 90) are fed gaseous oxygen from a sphere (30). A novel ignition system is used to ignite the hybrid heaters (50, 90, 250). One of the hybrid heaters (250) is used to ignite the hybrid motor (100) in the rocket (11).
    • 用于加压加压混合火箭(100)中的液氧罐(20)的系统在罐(20)的第一端处提供压力,使得液氧能够离开第二端。 混合加热器(50)通过将混合加热器(50)中的气态氧与固体燃料(51)混合来产生压力,从而产生极高的温度。 然后通过入口(60)将氦与燃烧产物混合,并且该热的惰性混合物通过扩散器(70)进入液氧罐(20)。 第二混合加热器(90)对气态氦球(40)加压,以减少由于氦气的排出引起的压力衰减。 两个混合式加热器(50和90)从球体(30)供给气态氧气。 一种新颖的点火系统用于点燃混合式加热器(50,90,250)。 混合式加热器(250)中的一个用于点燃火箭(11)中的混合动力电动机(100)。