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Deviousness `anmari has been spreading her infectious positivity throughout our community for over 6 years. Throughout this time Ana has been at the core of all things devious, passionately developing an eclectic gallery, helping organise devmeets, participating in chat events and also recently completed dedicating her time as a Community Volunteer. We are absolutely delighted to bestow the Deviousness Award for May 2013 to `anmari, congratulations! Read More
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Sta.sh
I see only one tank with fuel. In reality, hand held flamethrowers use two kinds of tanks - one for burning liquid and second one for pressurised gas that's used to propel and eject the burning fuel. Using mechanical pump to achieve good pressure for the stream would not be possible because such device would become too heavy.
However, if it would be possible to generate enough power to generate required pressure of the liquid, then it would also be possible to create a single tank flamethrower. The concept would in fact be similar to some degree with minigun (and your design), but instead of using electric drive to rotate barrels it would use that power to rotate pump. If would also take while for the pump to spin to operating speed, making it very similar to miniguns.
Another approach could be using some of the fuel to propel small gas turbine that would then propel the main pump. It wouldn't need heavy power supply then, but you would lose some fuel just to fire the darn thing.
Anyway, interesting. Forbidden by modern conventions but still... interesting
It kinda depends on what kind of 'pump' you're using.