There are seals that hold electric motor parts together with a reduction planetary gearbox, and sometimes they fail, about as much as any other seal, but with lower pressures, so not too common of a problem.

Look up company called Edison motors in BC Canada. They are doing commercial logging trucks trucks that are diesel electric and they’re also going to be getting into work trucks 1 ton and bigger.

2:48 - nope. There are several reasons for choosing this proposition system. One of them is not because it is less efficient. In one setup, a smaller diesel generator can be run at a constant lower speed. This can cut fuel consumption and other associated costs by half.

wow didn't see that coming. thx for the explanation

That's an interesting trade off. Because you are going to get added inefficiencies from the double conversion of the energy source into mechanical power BUT you get the benefit of much greater energy density with diesel vs. batteries and you get to run the diesel engine at whatever constant RPM needed for continuous peak efficiency or power as needed just as you could with a battery. But I've often seen diesel electric trains running on tracks with overhead electrical lines which would negate the need of a battery and therefore neutralises the energy density advantage of diesel. So I must be missing something here? There isn't as much of an additional energy conversion loss going diesel to electric to mechanical vs. straight electrical to mechanical as I assumed?

@AKIOTV

11 ай бұрын

Well of course an electric train is better, but plenty of railway lines don't have overhead wires, although they are of course getting more common. As far as efficiency goes, there's indeed a trade of between increased efficiency of the engine, and more power wasted in the drive train. Generally speaking though, electric generators and motors can be very efficient, particularly at large scales. Therefore (surprisingly perhaps) in many cases the increased engine efficiency outweighs the extra power loss in the transmission.

Look up company called Edison motors in BC Canada. They are doing commercial logging trucks trucks that are diesel electric and they’re also going to be getting into work trucks 1 ton and bigger.