wcorless - HHO under pressure is a hydrogen bomb!
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Hydrogen by itself is not that inherently dangerous. But add oxygen to hydrogen in any concentration above 4% Hydrogen and you have a highly volatile and unstable gas mixture. It is the oxygen in the air that makes hydrogen gas unstable (ever sit and watch a violent thunderstorm?).
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The secret to HHO as a motor fuel is in volume production in-place and the ability to meter production as demand calls for it.
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Since 2006 two Geo Metro cars have been operating on HHO in Tuscon Arizona with little or no major issues. But they have never run with absolutely no problems. There is a definite difference between the engines running on HHO, the engines running of Compressed Hydrogen Gas, and the engines running on regular gasoline. The best results are with compressed hydrogen gas. HHO comes in third (behind gasoline).
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Fuel injection is a simple remedy. But Hydrogen Fuel Injectors are expensive. LPG is a common motor fuel now, and there are a lot of LPG fuel injectors on the market. But the difference between LPG and HHO is like water and maple syrup (totally different). Hydrogen is number one on the periodic table (which means it is the smallest and lightest molecule). Hydrogen lines leak, and sealing them is a task by itself.
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Solve these issues and you are step two of ten towards HHO as a motor fuel.
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dataman19