| The global oil crisis was attenuated by the | | | | Otto-engines at a low shaft rotation |
| new nuclear energy and with the help of the | | | | (2500-6000 rpm). A normal rpm for hydrogen is |
| electrical engines introduced (especially in | | | | a 25000-60000 value. The hydrogen burning |
| the public transportation), but it wasn't | | | | process is ten time more quickly than the |
| past. One can understand in these conditions | | | | classical combustibles burning process. For |
| the new high costs for the combustibles | | | | this reason the shaft-rotation must support a |
| obtained from petroleum (gas, diesel oil, | | | | ten times increase, as well. This is the |
| etc…). A new combustible is necessarily | | | | first small technical difficult part, in the |
| now (for the engines with internal | | | | process of introducing the hydrogen like |
| combustion). This combustible must be found | | | | internal combustible in the Otto-engines. |
| in unlimited quantity. The single future | | | | Another small difficult in this process is |
| possible combustible (which pass all the | | | | the high efficiency obtaining of hydrogen and |
| conditions) for the new internal combustion | | | | its storage method. With a highly shaft |
| engines, is the HYDROGEN. The hydrogen can be | | | | rotation engine with hydrogen, we may obtain |
| extracted from water (and from any elements). | | | | a "Compact Otto Engine" which can give the |
| When it was tested like a possible internal | | | | same power parameters at a lower combustible |
| combustible, one has utilized the classical | | | | consumption, without emissions. |