Hydrogen Burnoff Igniters

Hydrogen Burnoff (HBO) Igniters utilize an electrical input stimulus that ignites an Electro-Explosive Device (EED) which in turn ignites a propellant grain. The propellant grain is designed to sustain a controlled burn for a specified amount of time (minimum of 22 seconds), As the propellant grain burns, it produces hot pyrotechnic particles which are propelled and exited through a nozzle in a cone pattern over a required distance (minimum of 15 feet). Propellant burn time duration and throw distance can be customized to meet specific customer application needs.

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  • Our HBO Igniters are qualified and used to support the safe launching of various U.S. and International space vehicles.

    • NASA’s Space Shuttle
    • United Launch Alliance (ULA) Delta IV Rocket
    • Mitsubishi Heavy Industries (MHI) H2 Rocket

  • HBO Igniters provide output of hot pyrotechnic particles used to prevent the accumulation of hydrogen gas on the launch pad during the starting process of Liquid Hydrogen/Liquid Oxygen (LOX) rocket engines. HBO igniters can be used where ejection of hot pyrotechnic particles will provide a means to solve other applications.

  • Output
    Provide pyrotechnic sparks of at least +1,500°F


    Throw
    Eject hot particles a minimum distance of 15 feet, and a cone angle of approximately 20°


    Duration (Burn Time)
    Minimum 22 seconds


    Operational Temperature
    -20°F to +160°F


    Hermetic Sealing
    1 x 10-5 cc/sec of helium with one atmosphere differential pressure


    All-fire Stimulus
    4.0 amperes with a 20 millisecond pulse


    No-fire
    1.0 ampere / 1.0 watt for 5.0 minute


    Insulation Resistance
    Greater than 2.0 megaohms at 500 volts direct current


    Applicable Specifications
    Motor Igniter qualified to MIL-STD-1576
    Initiator qualified to MIL-I-23659

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