The engines of fuel batteries of American military compound cars
Sine wave filter
As early as 1980s', the main auto manufactures have already set out to developed hydrogen power cars. At first, they have met the difficulties of case dimension, safety problem when they collided, volatilization and cost, and high temperature at the joint point. However, all these difficulties mentioned above can be resolved in the following years. Whereas, there is few hydrogen power cars in street.
This is not result from the safety consideration.
The compound cars concept, which takes much energy of fuel batteries, such as sun power and cole, has become a popular topic since 1990s'.
The reaction of hydrogen and oxygen in a suitable electrolyte can cause the hydronium exchange. And this kind of change can produce voltage.
The energy cost is very little. The hydrogen needed can be made through a quite economical methods. Furthermore, taking no account of environment pollution, there are a great of oxygen surround us.
Fuel batteries don't take any abrasion units, and will not produce any baleful pollution, can be used in cars and family environment.
In theory, the cars that equip fuel batteries can be used together with family network to drive electronic equipment. It need a pole converter fix in cars to produce in-phase sine wave voltage of 230VAC.
With this pole converter, each diver can run the cars loading standard equipment of 220VAC.